Formation Of Composite Materials Research Articles

Exploring the Impact of Lanthanum on Sodium Manganese Oxide Cathodes: Insight into Electrochemical Performance

This investigation focuses on nominally La‐doped Na0.67MnO2, exploring its structural, electrochemical, and battery characteristics for Na‐ion batteries. X‐ray diffraction analysis reveals formation of composite materials containing three distinct phases: P2‐Na0.67MnO2, NaMn8O16, and LaMnO3. The bond structures of the powders undergo scrutiny through Fourier‐transform infrared and Raman analyses, revealing dependencies on the NaO, MnO, and LaO structures. X‐ray photoelectron spectroscopy and energy‐dispersive X‐ray dot mapping analyses show that the La ions are unevenly dispersed within the samples, exhibiting a valence state of 3+. Half‐cell tests unveil similarities in redox peaks between the cyclic voltammetry analysis of La‐doped samples and P2‐type Na0.67MnO2, with a reduction in peak intensities as La content increases. Electrochemical impedance spectroscopy model analysis indicates direct influences of La content on the half‐cell's resistive elements values. The synergistic effect of composite material with multiple phases yields promising battery performances for both half and full cells. The highest initial capacity value of 208.7 mAh g−1, with a 57% capacity fade, among others, is observed, and it diminishes with increasing La content. Full cells are constructed using an electrochemically presodiated hard carbon anode, yielding a promising capacity value of 184.5 mAh g−1 for sodium‐ion battery studies.

The multidisciplinary science of applied clay research: A 2021–2023 bibliographic analysis

Clay minerals are functional materials that are increasingly used to develop a diverse range of new applications. An overview of current applied clay research can be obtained by analyzing available bibliographic databases to identify present-day research fields and current trends. Using the Web of Science® and software like EndNote™, Bibliometrix, and “R” (v4.3.1) to investigate i) the topics of published studies, ii) author collaborations, and iii) keyword networks, important information matrices can be identified for the core clay journals and more general multidisciplinary periodicals. After initial screening and filtering, 8815 applied clay articles were selected from 2021 to 2023, and nearly 4178 items from ten years back (2011−2013). A step-by-step method of dataset quality control and sorting revealed that clay terms related to adsorbents (34%) and composite material formation (over ∼55%) were the most common in recent years. Composite materials were frequently researched for catalyst support, sensors, coatings, preservatives, foundry, drilling fluids, geotechnical barriers, fertilizers, animal feed and drug delivery. Environmental remediation had the highest presence among adsorption and catalysis of contaminants, in particular, from wastewater and other aqueous medium. Smectite, kaolinite, and halloysite continue to be the most researched minerals in applied clay science. Among these, halloysite has gained significant popularity over the last ten years, particularly for catalytic support, drug delivery, and capture and storage of energy and CO2. The number of applied clay research articles has doubled in the last decade due to increased contributions, especially from China, Brazil, and India. The doubling of multidisciplinary journals has not weakened core clay journals, with Applied Clay Science still publishing the most papers. This bibliographic analysis provides comprehensive search criteria that the clay community can use to explore deeper into current trends in applied clay research and also reapply it in future assessments.

Mechanical and vibration characteristics of hybrid natural fibre-reinforced composite using taguchi grey relational analysis

In recent scenarios, the need for lightweight components in aerospace and safety applications results in the formation of new composite materials. The current investigation mainly emphasized the influence of a multi-wall carbon nanotube (0, 0.5 and 1 wt%) with different wt% of natural banana fibre (0, 3 and 6 wt%) / three different resins (Epoxy, Vinylester and General purpose) reinforced in composite using Taguchi’s L9 approach. Tensile, impact and impulsive excitation strengths (Youngs Modulus, Shear Modulus and Poisson’s ratio) are performed to predict the mechanical characteristics of the reinforced composites. ASTM standards are followed for preparation and testing. The outcomes illustrate that the mechanical characteristics are improved by the inclusion of 1 wt% CNT and 6 wt% of banana fibre reinforced in epoxy resin with an increase in impact strength of 5.41 kJ m−2, a tensile strength of 11.25 MPa, Young’s Modulus of 3.54 GPa and Poisson’s ratio of 0.404 when compared to the other composition. The optimal process constraints are found using Hybrid Taguchi-Grey Relationship Analysis. The experiments are carried out using the L9 orthogonal matrix. The results show that experimental trial no 3 could give optimized output. To evaluate the outcomes of the Taguchi optimization and analysis of variance, experimental trials are also carried out. This research aims to increase the strength of the industrial helmet by using this combination.

Studying the Process of Phosphogypsum Recycling into a Calcium Sulphide-Based Luminophor.

Currently, one of the most important problems of environmental protection is the deep and complex processing of mineral raw materials. This problem is especially relevant when processing substandard ores and production waste, one of which is phosphogypsum. This study examines the process of CaSO4/CaS composite material formation during the reduction of phosphogypsum with citric acid. The composite structure formation mechanism is proposed. The resulting materials are characterized using various methods, including X-ray diffraction (XRD), transmission electron microscopy, the Scherrer method, thermogravimetric analysis (TGA), and FT-IR spectroscopy. The reduced sample emits orange radiation in the range of 500-750 nm with a quantum yield of 0.17. Experimental results showed that the sample decomposition process in the solid state consisted of two components with a predominant contribution from the long-lived component (~46 ns). The optimal conditions for producing luminescent materials by reducing phosphogypsum with citric acid were determined: a heat treatment temperature of 1073 K, a holding time of 60 min, and a reducing agent mole fraction of 37%. It was found that an increase in temperature with a simultaneous decrease in heat treatment time, as well as a decrease in temperature with a simultaneous increase in heat treatment time, led to a decrease in the luminescent properties of the synthesized material compared to optimal values. The results can be used to develop technology for recycling large-tonnage waste from the chemical industry into luminescent materials.

Ultra-Low Thermal Conductivity and Improved Thermoelectric Performance in Tungsten-Doped GeTe.

Compared to SnTe and PbTe base materials, the GeTe matrix exhibits a relatively high Seebeck coefficient and power factor but has garnered significant attention due to its poor thermal transport performance and environmental characteristics. As a typical p-type IV-VI group thermoelectric material, W-doped GeTe material can bring additional enhancement to thermoelectric performance. In this study, the introduction of W, Ge1-xWxTe (x = 0, 0.002, 0.005, 0.007, 0.01, 0.03) resulted in the presence of high-valence state atoms, providing additional charge carriers, thereby elevating the material's power factor to a maximum PFpeak of approximately 43 μW cm-1 K-2, while slightly optimizing the Seebeck coefficient of the solid solution. Moreover, W doping can induce defects and promote slight rhombohedral distortion in the crystal structure of GeTe, further reducing the lattice thermal conductivity κlat to as low as approximately 0.14 W m-1 K-1 (x = 0.002 at 673 K), optimizing it to approximately 85% compared to the GeTe matrix. This led to the formation of a p-type multicomponent composite thermoelectric material with ultra-low thermal conductivity. Ultimately, W doping achieves the comprehensive enhancement of the thermoelectric performance of GeTe base materials, with the peak ZT value of sample Ge0.995W0.005Te reaching approximately 0.99 at 673 K, and the average ZT optimized to 0.76 in the high-temperature range of 573-723 K, representing an increase of approximately 17% compared to pristine GeTe within the same temperature range.

Effect of production technologies on the properties and structure of PTFE-based composites

In the development of polymer composite materials, it is crucial to use various technological methods for introducing fillers into the structure of the base polymer, by different activation technologies of energy exposure. In this study, the processes of structure formation of polymer composite materials based on polytetrafluoroethylene and discrete hydrate cellulose carbon fibers, depending on the production technology, were investigated by scanning electron microscopy. We considered joint mechanical activation of components and passing the powder mixture through laboratory rollers. To understand the processes occurring in the friction process of the developed PCM, surface studies before and after friction by infrared spectroscopy were carried out. We found that during the friction process, depending on the friction mode, the spiral conformation of the PTFE macromolecules changes. An increase in the sliding velocity and the load during PCM friction leads to a change in the spiral conformation of macromolecules with a transition from 136 to a more stable conformation 157. We also found that the combination of technologies for joint mechanical activation of components and rolling of a powder mixture are technological techniques that can increase the structural activity of discrete hydrocarbons and intensify the adhesive interaction at the polymer-filler phase interface, which leads to an increase in the resistance of composites to creep and wear. The developed technological approaches can be used in the production of fluorocomposites containing not only carbon but also other types of fibers.

Anisotropic and hierarchical porous boron nitride/graphene aerogels supported phase change materials for efficient solar-thermal energy conversion

The formation of shape-stabilized composite phase change materials (CPCMs) with special structure is an efficient strategy to prevent the leakage of phase change materials (PCMs) and improve the solar-thermal conversion ability. In this work, graphene and boron nitride nanosheets (BBNS) were prepared by the magnesiothermic reduction SHS method in CO2 and N2 atmosphere, respectively. Then, an anisotropic and hierarchical porous boron nitride/graphene aerogel with three-dimensional network was constructed by directional ice-freezing method using carboxymethyl cellulose as supporting framework and adhesive, and polyethylene glycol (PEG) was impregnated to prepare novel CPCMs. The CPCMs had enthalpies of 150∼160 J/g, and a highest thermal conductivity of 0.390 W/(m·K), which was around 47% higher than that of pure PEG. The ability of the CPCMs to convert solar energy to thermal energy was significantly enhanced. Under a simulated light intensity of sunlight (100 mW/cm2), its solar-thermal conversion efficiency reaches 94.92%, and after 20 min of irradiation, the surface temperature can reach 72 °C. These CPCMs are promising for the efficient use of renewable solar energy due to their high solar-thermal conversion efficiency and thermal storage capabilities.

Recent Advances in Multi‐Scale Piezoresistive Interfaces for MXene‐Based Flexible Sensors

AbstractFlexible piezoresistive sensors hold great promise in biomedicine and personal motion detection, attracting significant attention from researchers. Particularly, two‐dimensional (2D) MXene has made remarkable strides in biomedicine, electromagnetic shielding, and other practical applications, due to its exceptional hydrophilicity, biocompatibility, mechanical properties, surface functional groups, and large specific surface area. The ease of composite material formation further makes it ideal for high‐sensitivity flexible sensors. This paper summarizes the principal structural configurations for the multi‐scale interfaces, performance assessment metrics, and the corresponding sensing mechanisms of flexible piezoresistive sensors. Subsequently, the main characteristics and synthesis methods of MXene, especially the related applications and parameters are introduced in detail. The research trends and typical applications of MXene‐based flexible piezoresistive sensors focused on film structures, fiber structures, 3D structures, and hydrogel structures, are highlighted systematically. In addition, the challenges and prospects that promoting the advancement of MXene‐based flexible piezoresistive sensors in future are also discussed, which will revolutionize the sensing field and offer a wealth of opportunities in biomedicine and beyond.

Analysis of Properties of Polymer Composites with Various Types of Fillers

The processes of structure formation of composite building materials (KSM) on different polymer binders are presented. It is shown that one of the most significant components of KSM are fillers, which help to improve their structural and operational characteristics. This work is devoted to the analysis of the results of an experimental study of the properties of epoxy composites with fillers having various elastic-plastic and strength properties. The research was carried out in three stages: at the first stage, studies were conducted aimed at assessing the influence of the nature of the filler on the curing processes of KSM; at the second, the influence of the type of filler and its quantitative content on the strength of composites was established, at the third, compositions were optimized using fillers with different indicators of grain composition and elastic-plastic properties. Powders of glass, dolomite, thermolite, and diatomite were considered as fillers at the first and second stages of the research, and powders of glass, ceramics, and chalk were considered at the second stage. The research at the third stage was carried out using mathematical methods of experiment planning with the construction of a planning matrix for a complete factor experiment and the determination of the values of the response functions relative to the encoded factors. The physico-mechanical properties, degree of curing, and chemical resistance of filled epoxy CCM have been established. On the basis of artificial neural networks, the maximum properties of the studied composites with fillers were determined. An assessment of structural properties based on rank correlation is also proposed. The results of the research can be used to predict the properties of KSM, as well as to clarify the extreme parameters of the properties. The dependences of changes in the properties of polymer composites on the surface characteristics, the dispersion of fillers and the degree of filling were established; preferred fillers for epoxy composites were determined; fillers were determined to assess the effect of elastic surface properties of composites, allowing to improve the strength and deformability of polymer composites; regression models were obtained based on a complete factorial experiment; an assessment of the «structural stability» of the studied composites using Pearson, Kendall, Spearman rank correlation; On the basis of artificial neural networks, the extreme properties of the studied composites with fillers were determined, neural networks.

Structure Formation of Composite Material Based on Ferrite-Pearlite Steel and Aluminum Bronze Produced by Wire-Feed Electron Beam Additive Manufacturing

Structure Formation of Composite Material Based on Ferrite-Pearlite Steel and Aluminum Bronze Produced by Wire-Feed Electron Beam Additive Manufacturing

Regularities of Structure Formation of Composite Materials Based on Ferrite-Pearlite Steel and Aluminum-Manganese Bronze by Wire-Feed Electron Beam Additive Manufacturing

Regularities of Structure Formation of Composite Materials Based on Ferrite-Pearlite Steel and Aluminum-Manganese Bronze by Wire-Feed Electron Beam Additive Manufacturing

SECONDARY RESOURCES IN PRODUCTION OF COMPOSITE BUILDING MATERIALS BASED ON CEMENT

Link for citation: Kopanitsa N.O., Demyanenko O.V., Kulikova A.A., Tkach E.V., Shestakov N.I., Stepina I.V. Secondary resources in production of composite building materials based on cement. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 10, рр. 49-60. In Rus. The relevance of the research is caused by the importance of the problem of rational use of natural resources in production of composite building materials. The possibility of partial replacement of natural non-renewable raw materials used in the production of multi-ton concrete and mortar mixtures based on cement with secondary products from the production of various industries will solve the problems of: resource saving, energy consumption and ecology. The construction industry is the largest consumer of by-products of mining enterprises: overburden and waste from mining and processing enterprises, which is hundreds of millions of tons per year. The most studied are the issues related to their use as fine and coarse aggregates in concrete and mortar mixtures for various purposes. The expansion of the possibility of using secondary products of mining enterprises in the production of composite building materials is associated with the production of active mineral additives, fillers in concrete and mortar mixtures, as well as energetically active nanomodifiers. The use of by-products of different chemical composition and dispersion makes it possible to control the processes of structure formation and hardening of composite materials based on cement and to obtain composite materials with the required performance properties. The main goal of the research is to scientifically substantiate and investigate the possibility of using waste from mining enterprises as components in concrete and mortar mixtures based on cement. Objects: modifying additives based on secondary products; composite materials with enhanced performance properties. Methods: determination of the mobility of mixtures, normal density, hardening time, flexural and compressive strength according to SS; thermal analysis; electron microscopy, x-ray phase analysis, colorimetry. Results. The paper introduces the results of studies necessary for the scientific substantiation, development and implementation in the construction industry of the technology for production of building mortar mixtures obtained using secondary products of mining enterprises as well as the comparative results of studies on the effect of a complex additive of microcalcite and nano-SiO2 on the properties of cement systems. It is shown that the introduction of a complex additive increases the compressive strength of cement stone, reduces the consumption of cement without reducing its standard characteristics and improves the performance properties of concrete.

Composite materials of amorphous calcium phosphate and bioactive glass nanoparticles for preventive dentistry

Amorphous calcium phosphates and bioactive glasses are two of the most used materials in dentistry thanks to their ability to release remineralizing ions and reduce dentinal hypersensitivity by occluding exposed dentinal tubules. Here, we have synthesized composites of fluoride-doped amorphous calcium phosphate (FACP) and mesoporous bioactive glass nanoparticles (MBGNs) to obtain functional materials that possess both the capability to release dental remineralizing ions of FACP and both the excellent desensitizing activity of MBGNs. The procedure described in this work allows us to obtain FACP/MBGN composites with different compositions (i.e., FACP:MBGN weight ratio) in which the components have formed a deeply intertwined nanostructure. Composites’ ion release (i.e. Ca, P, F, and Si) in acidic artificial saliva is different from that of the single components or their physical mixture, corroborating the formation of composite materials. Moreover, thanks to the presence of FACP, the composites have superior bioactivity than the MBGNs alone. Dental enamel remineralization and efficacy of dentinal tubules occlusion by the investigated composites were preliminarily tested in vitro on human dental hard tissues using scanning electron microscopy. Data revealed that the composites induced a satisfactory remineralization of enamel and dentin thanks to the FACP component, and a positive tubule occlusion thanks to the MBGNs component. Finally, our results demonstrate that FACP/MBGN composites are highly promising materials for preventive dentistry.

Experimental analysis and machining characterization of aluminium 356 matrix composites reinforced with fly ash and alumina oxide Al2O3

A higher specific strength, specific modulus, damping capacity, and robust wear resistance are among the many superior properties of metal matrix composites (MMCs) over unreinforced alloys. A growing body of research is focused on low-density composites with low-cost reinforcements. Regarded as one of the least costly and least dense reinforcements available in substantial quantities, fly ash is a solid waste by product that is created when coal is burned in thermal power plants. Using Al356, Fly Ash, and Alumina Al2O3, the proposed metal matrix composite is created. Consequently, it is expected that fly ash reinforced composites will break through the financial barrier and become widely used in automobile and small engine parts. The primary objective of this research is to explore the potential of fly ash-reinforced composites to overcome economic barriers and find extensive applications in automotive and small engine components. By incorporating fly ash particles into aluminum alloy, we aim to not only enhance the properties of the material but also promote a sustainable use for this abundant waste by product. To achieve our goals, we employ a comprehensive fabrication process involving the incorporation of fly ash into the aluminum matrix using stir-casting techniques. This method allows for effective mixing and the formation of composite materials with the desired properties.. Particle reinforced aluminium matrix composites are becoming more and more popular for the creation of secondary components because of their low cost, isotropic properties, and chance for secondary processing. With fly ash, an easily accessible industrial waste, mixed with aluminum and stir-cast to form composite materials, the current effort aims to identify a workable use for this material.

ONE-STAGE ELECTROCHEMICAL SYNTHESIS OF A POLYMETHYLOLACRYLAMIDE/ULTRAFINE POLYTETRAFLUOROETHYLENE COMPOSITE

A method for one-stage electrochemical synthesis of a composite consisting of two non-conductive polymers has been developed. Using the example of electropolymerization of acrylamide in the presence of particles of ultrafine polytetrafluoroethylene (UPTFE), it is shown that the electrochemical approach makes it possible to simplify the traditional multistage technologies for the formation of composite polymer materials by combining in one process the electropolymerization of acrylamide and the formation of a polymethylolacrylamide (PMAA) film on the cathode, the capture of UPTFE particles by a growing polymer matrix, and formation of a PMAA/UPTFE composite. This technology makes it possible to reduce the total time for creating a polymer/polymer composite to 5-10 minutes. A procedure for the preparation of stable aqueous dispersions of UPTFE has been developed. It has been established that the most effective stabilizers of UPTFE aqueous dispersion are sodium lauryl sulfate (LS) and siloxane-acrylate emulsion SE 13-36. The formation of the PMAA/UPTFE composite was confirmed by XRD, SEM, SAXS, and spectrophotometry. It was found that the composite includes both large (~1 μm) and nanosized (1–10) nm UPTFE particles. The color of the PMAA/UPTFE composite films changes from colorless and transparent, characteristic of PMAA, to milky white (color of UPTFE and SE 13-36). This reduces the light transmission of composite films, reaching the minimum value for PMAA/UPTFE/SE 13-36. The mass of the PMAA/UPTFE composite increases with increasing electropolymerization time, and the residual current, which characterizes the degree of electrode insulation, decreases in comparison with the PMAA coating. Modification of the film with ultrafine polytetrafluoroethylene leads to a decrease in the swelling of composite coatings by a factor of 1.26–2.60, depending on the nature and concentration of the additive. The maximum insulating effect and reduced swelling is achieved for the PMAA/UPTFE(LS) composite, which indicates the preferred use of UPTFE(LS) for the modification of PMAA. The thermal stability of the PMAA/UPTFE(LS) composite and matrix PMAA is almost identical.

Single-phase nanopowders of Sr0.85-xBaxEu0.15F2.15: Investigation of structure and X-ray luminescent properties

Novel scintillating and visualizing materials are an essential part of the development of high-power X-ray sources like synchrotrons and free-electron lasers. One of the latest approaches is the formation of composite materials composed of X-ray luminescent nanoparticles in a robust transparent matrix with high thermal conductivity. Here, such Sr0.85-xBaxEu0.15F2.15 nanopowders with a particle size of ≈50 nm were synthesized by precipitation from aqueous solutions. Single-phase solid solutions are formed up to a barium concentration of 70 mol.%. The most intense luminescence band is the band of trivalent europium with a maximum at 590.4 nm, corresponding to the 5D0 → 7F1 transition. The concentration dependence of the X-ray luminescence intensity on the barium content was revealed, and the most optimal composition Sr0.35Ba0.50Eu0.15F2.15 with the brightest luminescence response was determined. The obtained type of nanoparticles has potential applications for the fabrication of new scintillating and visualizing composites.

Formation of Composite Material by Magnetic Pulse Welding of Crystalline Titanium and Nickel-Based Amorphous Alloy

Formation of Composite Material by Magnetic Pulse Welding of Crystalline Titanium and Nickel-Based Amorphous Alloy

Tin/Tin Oxide Nanostructures: Formation, Application, and Atomic and Electronic Structure Peculiarities.

For a very long period, tin was considered one of the most important metals for humans due to its easy access in nature and abundance of sources. In the past, tin was mainly used to make various utensils and weapons. Today, nanostructured tin and especially its oxide materials have been found to possess many characteristic physical and chemical properties that allow their use as functional materials in various fields such as energy storage, photocatalytic process, gas sensors, and solar cells. This review discusses current methods for the synthesis of Sn/SnO2 composite materials in form of powder or thin film, as well as the application of the most advanced characterization tools based on large-scale synchrotron radiation facilities to study their chemical composition and electronic features. In addition, the applications of Sn/SnO2 composites in various fields are presented in detail.

Photocatalytic activities of CTAB assisted ZrO2, V2O5, and ZrO2-V2O5 composite by precipitation process and their studies on structural, morphological and optical properties

Nanocrystalline core/shell structures of cetytrimethylammonium bromide (CTAB)-assisted ZrO2, V2O5, and ZrO2-V2O5 composite was successfully prepared by co-precipitation method calcined at 500 °C. CTAB-assisted ZrO2, V2O5, and ZrO2-V2O5 composite were characterized by different techniques such as, X-ray diffraction (XRD), Fourier Transform Infrared (FT-IR), Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Brunauer-Emmett-Teller (BET), Ultra-Violet (UV) and Photoluminescence (PL). The formation of ZrO2, V2O5, and ZrO2-V2O5 composite material has been confirmed by XRD studies. Surface morphology with grain size of CTAB-assisted ZrO2, V2O5, and ZrO2-V2O5 composite was determined by SEM and TEM studies. EDX analysis confirms the presence of compositional elements of ZrO2-V2O5 composites in the lattice such as zirconium, vanadium and oxygen. Optical studies reveal a strong absorption and emission peaks were presented in the UV and visible regions and it useful for optoelectronic device applications. In comparison, ZrO2, V2O5, and ZrO2-V2O5 composite exhibited the higher band gap energies with a significant blue-shift and enhanced UV light absorption compared to bulk counterparts. As-prepared photocatalysts, CTAB-assisted ZrO2, V2O5, and ZrO2-V2O5 composite showed strong photocatalytic activity towards the degradation of Rhodamine B (RhB) dye under UV light irradiation, which can facilitate the efficient separation and migration of photo generated electron-hole pairs. Among result, the ZrO2-V2O5 composite exhibited the synergistic enhanced photocatalytic performance and also the possible photocatalytic mechanism was discussed in detail.

NIR-UV Dual-Mode Photodetector with the Assistance of Machine-Learning Fabricated by Hybrid Laser Processing

Photodetectors are widely used in optoelectronic applications such as remote controlling, optical communication, and intelligent manufacturing. Multi-wavelength response capability can expand the application scenarios of a photodetector. However, responding to and recognizing multiple bands is still challenging for a photodetector. Here, we develop a dual-mode photodetector that can respond to and recognize near-infrared (NIR) and ultraviolet (UV) light with the assistance of a machine-learning model. A hybrid laser processing method was proposed to fabricate this photodetector based on the polyimide substrate. This method uses femtosecond laser and continuous wave laser to induce the formation of carbon and zinc oxide composite material in different forms. The femtosecond laser-processed area and the continuous wave laser-processed area realized stable NIR light detection and UV light detection, respectively. Recognition of the type of incident light was realized with the assistance of a machine-learning classification model. The proposed hybrid laser processing method combines the characteristics of two kinds of lasers and provides new insights into fabricating dual-mode photodetector. This photodetector could advance the development of dual-mode photodetection and has application potential in many fields like wearable devices and smart clothing.