Data Communication Applications Research Articles

Above Room‐Temperature Reversible Phase Transition and Nonlinear Optical Material PO(CH2CH2CH2CF3)3 with Hirshfeld Surface Analyses

The multifunctional materials with dielectric and nonlinear optical properties have attracted the attention of many scientists with potential applications in data communication, photoelectric devices, information processing, etc. Herein, one compound PO(CH2CH2CH2CF3)3 1, which underwent an obvious reversible structural phase transition, is reported. In the single‐crystal structure data, it is shown that space group of 1 changes from R3c to R3m, from one polar space group to another polar space group, and the dielectric constant has frequency dependence. The second harmonic generation (SHG) value is 0.50 at room‐temperature phase. The SHG value changes abruptly at around 349 K. The SHG value is about 1.09 at high‐temperature phase. Hirshfeld surface analyses reveal that H···F/F···H interactions make major contribution to the total forces, and the forces of the two kinds of hydrogen bonds are different at different phases.

The Implementation Of Digital Marketing Communication In Improving Products And Social C ommunity Of Dosroha Farmer Group

PKM with the title Application of Digital Marketing Communication in Improving Products and Social Community of Poktan Dosroha, delivered to farmers with low educational background, based on the number of those who did not attend school up to junior high school. Empowerment gived to them so that farmers understand digital marketing communication to introduce farmer groups and their products. Training is given to farmers aged 45 years and under on social community and utilization of social media. Second, Marketing Communication Training and the use of digital technology and website management for farmers aged 17-45 years so that they are able to utilize digital technology in terms of marketing agricultural production and utilizing land as little as possible for maximum production. Training on editing images, posters, videos through Adobe, Canva, Capcut applications for social media, as well as how to create advertisements and video advertisements. Application of Technology is creating social media accounts on TikTok and FB; creating videos with Adobe, Canva, Illustrator and Capcut applications; creating photos and advertisements for agricultural production so that they can be marketed. Some farmers have started making them on their personal TikTok, while farmer group videos are made on the TikTok of Poktan Dosroha. The service was welcomed by the village head and the head of the Dosroha farmer group and was also published on the Dosroha farmer group website which has been published. Kata Kunci: Communication; Marketing; Dosroha Farmer Group; Pagarjati

Light Emission of Sn/Ge MQW pin Diodes on Si

Si-based photonic integrated circuits (PIC) with optically active components monolithically integrated on a Si chip are considered one of the solutions for the innovation of the next generation of information and communication technology. Si-based photonics opens up new possibilities for applications in data communications, sensor technology, biological and environmental sensing systems, but also future technologies including integrated quantum technologies, optical computing, artificial intelligence-based technologies and neuromorphic photonics. Remarkable advances have been made in key components of Si-based PICs, including high-performance Si-based modulators, photodetectors as well as waveguides. An efficient electrically pumped light source on Si still remains a challenge. The first lasers monolithically integrated on Si were demonstrated at low temperatures using the CMOS (Complementary Metal Oxide Semiconductor)-compatible material system SiGeSn.This paper reports the light emission from multiquantum well (MQW) structures composed of multi-stacked 2 Monolayer (ML) Sn/20 nm Ge layers incorporated into a pin structure. These samples were grown using molecular beam epitaxy. The schematic layer stack is shown in Figure (a). The MQW structure is placed in the intrinsic region of a Ge pin diode on a Si (100) substrate. Figure (b) shows the high-resolution x-ray (HR-XRD) space map of the device structure. The measurement data suggest that the compressively strained 2ML Sn/Ge MQW are grown pseudomorphically on the Ge virtual substrate (VS). Furthermore, the measurement shows clear information about the periodic Sn/Ge structure. In preliminary studies, the wetting layer thickness was determined to be 1.4 ML Sn. Figure (c) shows an atomic force microscopy (AFM) image of Sn dot formation on the Ge (100) surface for 2 ML Sn. The device is processed using a single mesa process with a very low thermal budget.The electroluminescence measurements are carried out in a cryostat, the temperature of which can be continuously regulated from room temperature (RT) to 12 K. The light is collected via a special indium fluoride multimode-fiber and detected with the NIRquest spectrometer in a wide wavelength range between 1000 nm and 2500 nm. In order to understand the influence of the MQW structure, a reference diode with exactly the same growth parameters but without Sn was grown and processed in parallel. Their temperature-dependent EL spectra are shown in figure (d). At RT we see the typical EL spectrum of a Ge diode with the direct band (Γ-HH) and indirect band (L-HH) transition. Due to the indirect semiconductor properties of Ge, the intensity decreases with lower temperatures. The maxima shift towards the blue because of the temperature dependent band gap. At very low temperatures a new luminescence occurs, which we identify as a defect luminescence of the Ge.The temperature-dependent EL spectra of the 2 ML/Ge MQW pin diode are shown in figure (e). Four peaks can be observed depending on the temperature. At RT the Ge peak as in the reference sample can be measured, but with a different intensity ratio. At very low temperatures we find a second, sharper peak next to the defect luminescence peak of Ge (see inset). This shows a direct behavior because the EL intensity increases with decreasing temperature. In the paper we discuss these different peaks in detail and give an interpretation based on photogenerated carrier numbers, temperature dependent occupation and quantum confined radiative transmission probabilities. Figure 1

(Invited) Impact of CMOS Miniaturization on Digital and RF Applications and Its Future

Semiconductors, especially CMOS LSIs (Complementary Metal-Oxide-Semiconductor Large-Scale Integrated Circuits), are fundamental to our contemporary highly intelligent society, exemplified by technologies like artificial intelligence (AI). The exceptional performance and functionality of current CMOS LSIs are largely attributed to the ongoing miniaturization of their core components: MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors). Since the inception of MOS LSI production in the early 1970s, MOSFETs have undergone regular size reductions every 2 to 3 years. The minimum linewidth, which was 10 μm in 1970, has now shrunk to nearly one-thousandth of that size, approaching 10 nm. Each phase of MOSFET miniaturization has encountered formidable technological challenges, overcome through innovative solutions.However, we stand at a critical juncture. The relentless drive toward smaller MOSFETs is now approaching physical limits. The future trajectory of CMOS LSIs will veer away from further miniaturization and instead focus on channel stacking—a strategy to sustain progress. In this presentation, I delve into the history of CMOS LSI miniaturization, explore its impact on digital information processing and RF communication applications, and gaze into the post-miniaturization era, anticipating both opportunities and challenges.

Application Research of Power Measurement Data Exchange Based on Uninterruptible Power Supply

With the maturity of the smart meter embedded system integration mode, the power consumption information can be fed back to the management center by the intelligent terminal through the power Internet of Things. The smart terminal adopts the narrowband data communication mode. However, the narrowband channel interval is hindered by interference signals, resulting in serious data packet loss. Therefore, a stable and efficient acquisition scheme is needed to ensure its smooth interaction. Based on the application of smart meter data communication, we analyze the power consumption optimization and carrier transmission optimization of the power Internet of Things and propose a data analysis method based on self-learning and external characteristics, which is used to calculate the offline execution strategy of smart meters when they encounter factors such as power outage or intrusion. A production task-driving rule is designed. The external characteristics of deep learning data of the power Internet of Things are collected. The accuracy of data classification is judged according to the parallel Internet of Things of a convolutional neural network and a long-term and short-term memory deep neural network. When dealing with high-dimensional original data, the data network is graded to reduce the work of feature selection and the difficulty of training. Moreover, we improve the autonomous execution ability of an embedded terminal device in an offline state. We also strengthen the ability of abnormal data detection and judgment learning to meet the requirements of efficient and stable operation of the power grid. Simulation results verify that compared with the current mainstream schemes, the performance of the proposed scheme is improved by more than 17%. Besides, the fault tolerance rate is enhanced by 29%, and the power consumption after optimization is reduced by 26.3% and 42.8%. These effects highlight the role of data processing in embedded systems. It solves the problem of abnormal data and energy loss affecting the accuracy of error estimation of electric energy meters, opens up a new way for data acquisition and processing of large-scale smart meters, and further improves the service level of information management of power systems.

Optimalisasi Komunikasi Digital dalam Penerapan Visual Sosial pada Desain atau Layout Website Company Profile

This research is needed to provide the latest views on the Public Relations and Digital Communication Study Program through online media, namely the website. In addition, in order to increase interaction with the community, especially prospective new students who are looking for information about the Public Relations and Digital Communication study program, as well as to help agencies to continue to adapt to technological developments as an implementation of the implementation of digital communication. This research is a qualitative research with a constructivist approach. The researcher uses constructivists to find out the maximum response of website visitors in disseminating information in the community related to the Study Program through the website. In addition, the constructivist approach was chosen so that researchers have a deeper understanding, not just mere knowledge but are expected to be able to build knowledge and understanding through direct experience and reflection on websites. The implementation of the website development strategy to strengthen the profile of the study program in improving the brand image as one of the applied undergraduate study programs at the State University of Jakarta is a sustainable task and requires continuous efforts to brand this study program to the general public, Personal and Historical Approach to Websites, and Engineering and Aesthetics in the Application of Digital Communication, as well as the Management and Maintenance of Website Development of the Study Program Displaying topics of interest, namely the latest curriculum, topics about curriculum lecturers and topics of graduate job prospects.

RANCANG BANGUN PENGENDALI LAMPU DENGAN KOMUNIKASI SERIAL BERBASIS MIKROKONTROLLER PIC16F877 DAN 16F876 MELALUI JARINGAN LISTRIK RUMAH

Serial data transmission can be applied by the use of the grid as a carrier is one alternative that has some advantages, such as reducing the use of cables In this design project created a special application of serial data communication via the electricity network that uses circuit PIC16F877di Microcontroller Master controller as the main controller to control ON / OFF to 5 pieces Slave controller circuit using the PIC16F876 microcontroller to control the lights as the electrical load. Research conducted using a modulation method Frequency Shift Keying (FSK) as modulator and demodulator, also using a series transformer coupling and high pass filter circuit. The main component Frequency Shift Keying (FSK) the Integrated Circuit (IC) XR2206 as a Modulator and Demodulator IC XR2211 as, as well as using a passive filter that serves to pass a predetermined frequency is 70KHz - 80KHz. The frequency value to be achieved by calculating the value of an external capacitor and resistor. The results of the calculations at the design stage modulator, with a value of C = 10nF obtained value R1 = 1428Ω, R2 = 1250Ω. Keywords: PIC16F877, PIC16F876, XR2206, XR2211

Prototipe Aplikasi Komunikasi Menggunakan Jaringan Delay Tolerant Network Pada Perangkat Seluler Android

In the current global context, the exchange of information through Internet networks has become increasingly vital, necessitating the effectiveness of communication technology. This is particularly true in areas with weak or unstable signal coverage such as intermittent areas. To address challenges such as frequent connection drops in these areas, Delay Tolerant Networking (DTN) architecture is offered as an alternative solution to overcome these problems. The conducted research aims to design and test a data communication application prototype using DTN architecture implemented on the Android operating system. The approach taken involves using the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) method. In detail, the application is implemented on the Android operating system and integrates various routing protocols such as Epidemic, Spray and Wait, MaxProp, and ProphetV2 to optimize data transmission and reception under varying network conditions. Data collection techniques include measuring latency and data transfer speed in predetermined testing scenarios, while data analysis techniques involve evaluating the measurement results to determine the effectiveness of the routing protocols used. Evaluation is conducted and the results showing an average latency between 800-1400ms and speeds of 100-400kbps, depending on the distance and varying network conditions. This study validates the effectiveness of DTN in maintaining consistent communication in challenging network environments. The impact of this research on the advancement of informatics is to pave the way for further development and adaptation of DTN technology in various mobile applications and data networks.

Polarization detection for cylindrical vector beams empowered by pixelated metasurfaces

Polarimetry plays an indispensable role in the light–matter interactions. Nevertheless, conventional components developed for polarization measurements suffer from bulky volume and spatial alignment schemes, causing them to reveal limited performance in determining inhomogeneous polarization distributions. Here, we propose a polarization detection scheme based on pixelated all-dielectric metasurfaces using spin-multiplexing coding techniques. The polarization resolving capability of the pixelated metasurface under homogeneous linearly polarized illumination was first evaluated, and the extracted peak coordinates were used to establish an exact functional relationship with the azimuthal angle. Subsequently, the measurement of spatial inhomogeneous polarization was further explored with a focusing matrix assembled from pixelated metasurfaces. The proposed polarization detection strategy can be extended to other spectral bands without discrimination, stimulating potential applications in high-resolution imaging, sensing and data communication.

Digital Competence for University Lecturers in Vietnam: A Case Study Result At 10 Universities

The digital transformation process has been systematically implemented across all fields of education and training, significantly impacting all activities of universities in Vietnam. Digital technology has changed the way lecturers access, deliver, and assess knowledge for university students. Digital competence is also crucial for lecturers to research and apply advanced teaching methods, from using online platforms to analyzing data to personalize the learning process for students. The purpose of this study is to develop a framework of digital competence for university lecturers in Vietnam and to identify the current status of digital competence among university lecturers in Vietnam. The study used a quantitative research method with a survey sample of 180 lecturers representing 10 universities from 4 regions of Vietnam. The research results show that the digital competence of university lecturers in Vietnam consists of 4 components: (1) Basic information technology competence, (2) Competence in designing, implementing, and evaluating digital education by lecturers, (3) Competence in training students in the application of digital technology, (4) Communication and collaboration competence in a digital environment. From these findings, 4 measures are proposed to develop the digital competence of university lecturers in Vietnam: (1) Increasing awareness among lecturers about digital transformation in the teaching process; (2) Investing in equipment, infrastructure, and information technology infrastructure to meet the requirements of digital transformation in education; (3) Providing training and development opportunities for lecturers' digital competence; (4) Establishing support mechanisms and policies to encourage lecturers to enhance their digital competence.

Linear Codes for Hyperdimensional Computing.

Hyperdimensional computing (HDC) is an emerging computational paradigm for representing compositional information as high-dimensional vectors and has a promising potential in applications ranging from machine learning to neuromorphic computing. One of the long-standing challenges in HDC is factoring a compositional representation to its constituent factors, also known as the recovery problem. In this article, we take a novel approach to solve the recovery problem and propose the use of random linear codes. These codes are subspaces over the Boolean field and are a well-studied topic in information theory with various applications in digital communication. We begin by showing that hyperdimensional encoding using random linear codes retains favorable properties of the prevalent (ordinary) random codes; hence, HD representations using the two methods have comparable information storage capabilities. We proceed to show that random linear codes offer a rich subcode structure that can be used to form key-value stores, which encapsulate the most used cases of HDC. Most important, we show that under the framework we develop, random linear codes admit simple recovery algorithms to factor (either bundled or bound) compositional representations. The former relies on constructing certain linear equationsystems over the Boolean field, the solution to which reduces the search space dramatically and strictly outperforms exhaustive search in many cases. The latter employs the subspace structure of these codes to achieve provably correct factorization. Both methods are strictly faster than the state-of-the-art resonator networks, often by an order of magnitude. We implemented our techniques in Python using a benchmark software library and demonstrated promising experimental results.

Transmit-isolating photonic receivers with high isolation, large dynamic range based on reverse single-sideband modulation

Two kinds of transmit-isolating photonic receiver (TIPRx) systems with high isolation, large dynamic range based on reverse single-sideband (SSB) modulation are proposed and demonstrated. For the single dual-drive modulator (DD-MZM), the transmit signal allows less leakage of the RF power to the PD compared with the reverse double-sideband (DSB) modulation, thanks to the reduction in the number of the sidebands beating with the center carrier, while the forward DSB modulation benefits the high-quality response of the receive signal. Experimental results demonstrate that the average isolation is increased by 3–4 dB through suppressing the sideband intensity of the counter-propagation modulation, and the system has an isolation greater than 15 dB within 4–24 GHz. In addition, the spurious-free dynamic range (SFDR) of 98.31 dB·HZ2/3 is achieved. The parallel DD-MZMs scheme is put forward to improve the isolation and SFDR simultaneously, through the accurate cancellation of the reverse sidebands and third-order intermodulation (IMD3) components. The simulation result proves that the parallel architecture can suppress the reverse response and IMD3 effectively, and has the null of 0.10 for the isolation and the null of 0.20 for the IMD3 components when the optical power ratio is 0.9. The proposed technique can find applications in analog and digital communication.

Pengaruh Live Streaming Tiktok Sebagai Aplikasi Komunikasi Digital Dan Dampaknya Pada Purchase Intention (Studi Kasus Brand Senikersku)

The digital age brings significant changes with the advent of computer information technology and the internet. Digital media provides easier and faster access to information, allowing direct interaction between individuals and organizations through various platforms, including TikTok live streaming. TikTok has become popular as a digital communication platform that allows brands to interact directly with consumers, including in the context of the Snikersku brand. This study aims to analyze the effect of TikTok live streaming as a digital communication application on consumer purchase intention for skincare products for Brand Senikersku. This research uses a descriptive analysis method with a qualitative approach, mainly through literature study. Data was collected from various sources such as books, journals, the internet, and previous research to gain a deeper understanding of the influence of TikTok live streaming on consumer purchase intention. The results showed that TikTok live streaming has a significant influence on consumer purchase intention towards Brand Senikersku. Direct interaction between brands and consumers, as well as entertainment and product visualization presented in live streaming, play an important role in increasing consumer purchase intention. In TikTok live streaming, entertainment and product visualization are key to influencing consumer purchase intentions. The combination of live interaction, entertainment, and product information increases brand awareness, builds trust, and increases sales for the Snikersku brand.

Synergistic effect of proton irradiation and electrical stress on high-speed 850 nm vertical-cavity surface-emitting lasers

The synergistic effect significantly impact VCSEL's reliability for potential applications in spatial data communication. The synergistic effect of 3 MeV proton irradiation and electrical stress on 850 nm high-speed VCSELs is investigated. The degradation of VCSEL slow down under the influence of bias current. However, device degradation is more pronounced during irradiation under high bias current density. Low frequency noise (LFN) analysis results indicate that defects induced by proton irradiation are the primary cause of the optical-electrical parameter degradation in the device. The bias current density significantly influences the final defect yield, leading to variations in the degree of degradation after irradiation at different bias currents. At a bias current density of 6.03 × 105 A/m2, the degradation of the modulation bandwidth is reduced in comparison to the unbiased state. A mechanism investigation into the synergistic effect of proton irradiation and electrical stress on VCSELs lends support for accurately evaluating the radiation hardness of optical communication system composed of VCSELs in harsh radiation environments.

Ultra-broadband magneto-optical isolators and circulators on a silicon nitride photonics platform

Broadband optical isolators and circulators are highly desirable for wavelength-division multiplexing, light detection, and ranging systems. However, the silicon-integrated optical isolators and circulators reported so far have a limited isolation bandwidth of only several nanometers, due to waveguide and material dispersion. In this paper, we report the development of broadband magneto-optical isolators on silicon nitride waveguides. We proposed a general method of dispersion compensation to achieve a constant phase difference between reciprocal and nonreciprocal phase shifts in a Mach–Zehnder interferometer over a wide frequency range. This method enabled a theoretical 30 dB isolation/circulation bandwidth of more than 240 nm, which covers the S, C, L, and U bands. The fabricated devices showed a maximum isolation ratio of 28 dB, crosstalk of −28dB, high 20-dB isolation bandwidth of 29 nm (3.48 THz), and a relatively low loss of 2.7 dB in the wavelength range of 1520–1610 nm. By further heating the reciprocal phase shifter based on the thermo-optic effect, the experimental 20 dB isolation bandwidth of the device increased to 90 nm (11.03 THz). This method has also been applied to the design of broadband, low-loss isolators, and O/C dual-band isolators/circulators. Our work experimentally demonstrated broadband-integrated optical isolators and circulators on silicon, paving the way for their use in optical communication, data communication, and LiDAR applications.

Continuous ultra-wideband signal regeneration in random optoelectronic oscillators through injection locking.

By using an external injection locking method, for what we believe to be the first time, we experimentally demonstrate continuous ultra-wideband signal regeneration in random optoelectronic oscillators, achieving more adaptable signal processing capabilities than self-oscillation methods. Supported by theoretical analysis and experimental evidences, this system can regenerate any signal with sufficient gain in a random-feedback cavity, independent of cavity filters. Remarkably, enhanced phase noise performance with over 35.2 dB side mode suppression and a phase noise better than -86 dBc@1 kHz at higher injecting powers are demonstrated. Additionally, we successfully process complex multi-frequency communication signals, indicating potential applications in radar, remote sensing, and data communications.

Solder-less Fine Pitch Copper-to-Copper Bonding

The industry has been looking to increase pitch scaling through various methods. One of these methods is an alternative to solid-state solder bonding. However, very few processes can compete with solder bonding’s fast speed, low cost, and flexibility. The approach with the biggest potential for connecting fine pitch interconnects in high-density semiconductor packaging is solder-less copper-to-copper direct bonding. There are many benefits to using copper-to-copper direct bonding, including the ability to achieve ultra-fine-pitch (bump pitch 10 μm), higher reliability (both thermo-mechanically and better electromigration behavior), low resistance, as well as the lack of concern for solder hierarchy for multiple reflow. This copper-to-copper direct bonding technology enables a variety of 2.5D/3D advanced packaging architectures and is also suitable for multi-die stacking. In this study, we report the investigation of a direct copper-to-copper bonding methodology and reliability of the bonded components. Our process differs from common hybrid bonding copper-to-copper techniques, in that it is designed for low volume highly complex products. This technology allows a die-to-die and die-to-wafer process using thermocompression bonding under a deoxidizing vapor flow for direct copper-to-copper bonding. The process does not require high temperature oven annealing and can be done in a normal atmospheric environment. The investigated bonding process is ideal for high power, high thermal, high density 3D stacking and high-speed digital communication applications. We demonstrated the bonding procedure using a test vehicle with 40 μm diameter pillars and 80-μm bump pitch. We investigated the effects of bonding force and evaluated joint reliability. Interconnect/bond strength was determined through destructive shear testing and cross-sectional analysis. A scanning electron microscope was used to inspect and examine the bonded joint quality. Finally, completed assemblies were thermal cycled to evaluate degradation of joint strength under induced stress, and resistance measurements were performed to evaluate the electrical performance of the bonded copper joint.

Analisis Komunikasi Digital Aplikasi Sihalal pada Pemilik UMKM di Kabupaten Serdang Bedagai

The government realizes that the government service system must adapt by using information communication technology that can facilitate all community activities through digital communication. One example of digital transformation in government agencies is the Sihalal application. This application is an application created by the Ministry of Religion to make it easier for UMKM business owners to obtain halal certification, as well as to help accelerate data collection of halal products. The Ministry of Religion through PPH assistants guides UMKM owners to register their products so that they can get halal certificates. The purpose of this study is not only to analyze digital communication, but also to directly analyze the application of digital communication to UMKM owners in Serdang Bedagai Regency related to the process and stages of registering business products in the Sihalal application. This research uses qualitative research methods with a descriptive approach. The results of the study found that the digital communication of the Sihalal application with the help of PPH assistants runs effectively, but there are several problem and obstacles that occur in the field such as internet network access and the long distance of PPH assistants' consultations and the registration flow in the Sihalal application which is easy to apply.

Chiral Meta‐Coder for Spin Switchable Electromagnetic Camouflage and Information Authentication

AbstractElectromagnetic camouflage is crucial for concealing the physical identity of the object from external electromagnetic detection, whether in military operations or civilian contexts. However, addressing the pressing issue of seamlessly transitioning between camouflage and visualization capabilities is a significant challenge. By combining chiral meta‐atoms and irregular phase encoding method, a novel chiral meta‐coder is proposed for spin switchable electromagnetic camouflage and target authentication. Different from traditional conformal strategies, this meta‐coder achieves camouflage functionality by tightly arranging meta‐atoms around the target object and encoding suitable phase sequences to shape desired wavefront. Simultaneously, the target object can also be identified by modulating the helical state of the incident wave. As a proof of concept, a chiral meta‐coder operating in camouflaging “A” shaped target object is designed and experimentally demonstrated. When exposed to right circularly polarized waves, the meta‐atoms surrounding the object can adapt the wavefront to conceal target information. The camouflaged pattern exhibits diffuse scattering in the far field and three focal patterns around the near field. Conversely, these meta‐atoms transition into a wave‐absorbing configuration, facilitating the precise identification of target information. Such a strategy may find potential applications in data security, privacy, and communication.

Low Surface Recombination in Hexagonal SiGe Alloy Nanowires: Implications for SiGe-Based Nanolasers.

Monolithic integration of silicon-based electronics and photonics could open the door toward many opportunities including on-chip optical data communication and large-scale application of light-based sensing devices in healthcare and automotive; by some, it is considered the Holy Grail of silicon photonics. The monolithic integration is, however, severely hampered by the inability of Si to efficiently emit light. Recently, important progress has been made by the demonstration of efficient light emission from direct-bandgap hexagonal SiGe (hex-SiGe) alloy nanowires. For this promising material, realized by employing a nanowire structure, many challenges and open questions remain before a large-scale application can be realized. Considering that for other direct-bandgap materials like GaAs, surface recombination can be a true bottleneck, one of the open questions is the importance of surface recombination for the photoluminescence efficiency of this new material. In this work, temperature-dependent photoluminescence measurements were performed on both hex-Ge and hex-SiGe nanowires with and without surface passivation schemes that have been well documented and proven effective on cubic silicon and germanium to elucidate whether and to what extent the internal quantum efficiency (IQE) of the wires can be improved. Additionally, time-resolved photoluminescence (TRPL) measurements were performed on unpassivated hex-SiGe nanowires as a function of their diameter. The dependence of the surface recombination on the SiGe composition could, however, not be yet addressed given the sample-to-sample variations of the state-of-the-art hex-SiGe nanowires. With the aforementioned experiments, we demonstrate that at room temperature, under high excitation conditions (a few kW cm-2), the hex-(Si)Ge surface is most likely not a bottleneck for efficient radiative emission under relatively high excitation conditions. This is an important asset for future hex(Si)Ge optoelectronic devices, specifically for nanolasers.