Nanocomposite Layer Research Articles

Thin Films Based on Cobalt Phthalocyanine:C60 Fullerene:ZnO Hybrid Nanocomposite Obtained by Laser Evaporation.

Matrix-assisted pulsed laser evaporation (MAPLE) was used to deposit hybrid nanocomposite thin films based on cobalt phthalocyanine (CoPc), C60 fullerene and ZnO nanoparticles. The inorganic nanoparticles, with a size of about 20 nm, having the structural and optical properties characteristic of ZnO, were chemically synthesized by a simple precipitation method. Furthermore, ZnO nanoparticles were dispersed in a dimethyl sulfoxide solution in which CoPc and C60 had been dissolved, ready for the freezing MAPLE target. The effect of the concentration of ZnO nanoparticles on the structural, morphological, optical and electrical properties of the CoPc:C60:ZnO hybrid nanocomposite layers deposited by MAPLE was evaluated. The infrared spectra of the hybrid nanocomposite films confirm that the CoPc and C60 preserve their chemical structure during the laser deposition process. The CoPc optical signature is recognized in the ultraviolet–visible (UV–Vis) spectra of the obtained layers, these being dominated by the absorption bands associated to this organic compound while the ZnO optical fingerprint is identified in the photoluminescence spectra of the prepared layers, these disclosing the emission bands linked to this inorganic semiconductor. The hybrid nanocomposite layers exhibit globular morphology, which is typical for the thin films deposited by MAPLE. Current-voltage (J-V) characteristics of the structures developed on CoPc:C60:ZnO layers reveal that the addition of an appropriate amount of ZnO nanoparticles in the CoPc:C60 mixture leads to a more efficient charge transfer between the organic and inorganic components. Due to their photovoltaic effect, structures featuring such hybrid nanocomposite thin films deposited by MAPLE can have potential applications in the field of photovoltaic devices.

Dye-sensitized solar cells based on graphene oxide and natural plant dye extract

The world is advancing quickly in terms of population and technology and this has placed a high demand on energy. The exploitation of conventional sources of energy such as fossil fuel, has proven to be harmful to the environment and its biota. Consequently, there is a need to exploit clean, renewable and sustainable sources of energy like the sun. Dye-sensitized solar cells (DSSCs) have been of particular interest owing to their low price-to-performance ratio, relatively low cost of fabrication, availability of raw materials and eco-friendliness. The performance of the cell is highly dependent on the materials used for each of its components: the sensitizer, photoanode, counter electrode and the electrolyte. This work was carried out to study the photovoltaic properties of DSSCs based on TiO2-GO photoanodes sensitized with natural dye pigments. Graphene oxide (GO), synthesized from graphite by Hummer’s method, was incorporated into the photoanodes to study the effects of its varying composition on the photovoltaic performance of the cells. GO was incorporated into the photoanodes by forming a nanocomposite layer (GO-TiO2) onto a pristine TiO2 nanoparticle layer to form double-layer sensitized photoanodes. The synthesized GO was characterized by UV–vis spectroscopy showing an absorbance peak at 221 nm wavelength, characteristic of GO. Mimosa pudica dye, a chlorophyll dye, was extracted from the leaves of the photosensitive green plant to sensitize the photoanodes. The photovoltaic properties of the cells were evaluated by current density–voltage (JV) curves. Promising results were observed. Generally, the incorporation of GO in the double layer photoanodes enhanced the photovoltaic properties of the cells. This led to a 41% improvement in efficiency for 0.71 wt% GO double layer based DSSC compared to the single layer nanoparticle based DSSC. The highest efficiency was recorded for the double layer (DL) photoanode with 0.71 wt% GO composition (Voc = 0.284, Jsc = 16.085, FF = 0.00035, η = 0.1%). Furthermore, single-layer chlorophyll-sensitized photoanodes were compared with single-layer anthocyanin-sensitized photoanodes using Rhoeo spathacea and Hibiscus rosa-sinensis dye extracts. The highest efficiency was recorded for the TiO2/ Hibiscus rosa-sinensis (Voc = 0.468, Jsc = 0.039, FF = 0.485, η = 0.55%).

A Modeling Approach for Young’s Modulus of Interphase Layers in Polymer Nanocomposites

In this work, the interphase in polymer nanocomposites is modeled as a multilayered part in which the Young’s modulus of each layer Ek continuously changes from nanoparticle surface (xk = 0) to polymer matrix (xk = t). The dependency of Ek onxk is analyzed by linear, exponential and power functions. The average interphase modulus is determined by the Ji model for several samples and the accurate dependency ofEk on x is derived. The linear and exponential relations display a relatively similar trend forEk, but they cannot suggest an accurateEk assuming the predicted interphase modulus by the Ji model. The equation which relatesEk onxkY can present acceptable values for Ek, where the value ofY determines the Young’s modulusEk. This approach can be applied to evaluate the magnitude of interphase in polymer nanocomposites.

Optimization of hydrophobic nanocomposite thin film from silica/polietilen

An optimization of the hydrophobic nanocomposite thin film has been carried out. A thin layer of nanocomposites is synthesized from natural minerals, which are a mixture of silica and polyethylene. Synthesis was carried out using 5 hours spinning with High Energy Milling (HEM-E3D). Optimization is done through variations in the composition of silica minerals with polyethylene. Contact angle characterization was performed using the Nikon D5200 Camera. The results of this study are the optimum contact angle obtained in the composition of silica/polyethylene nanocomposites that is 0.2 gram/0.5 gram.

Out-of-plane vibration of laminated FG-GPLRC curved beams with piezoelectric layers

Abstract As a first endeavour, the out-of-plane vibration characteristics of laminated functionally graded graphene platelets reinforced composite (FG-GPLRC) curved beams bonded by piezoelectric layers are investigated. The displacement components are approximated through the beam thickness direction based on the first-order shear deformation theory (FSDT). Accordingly, the shear deformation and rotary inertia effects due to both the torsional and flexural deformations are considered. The effective mechanical properties of the nanocomposite layers are estimated using the modified Halpin-Tsai model. The governing equations are derived by employing Hamilton's principle, which are discretized in the spatial domain using the differential quadrature method (DQM). After validating the approach, some useful results are provided which can be used for future researches. In this regards, the effects of graphene platelets (GPLs) distribution patterns, GPLs weight fraction and dimensions, number of GPLs reinforced layers, piezoelectric layer thickness, the curved beam geometric parameters and boundary conditions on the vibrational characteristics of the laminated FG-GPLRC curved beams embedded in piezoelectric layers are studied.

Transmission investigation of one-dimensional Fibonacci-based quasi-periodic photonic crystals including nanocomposite material and plasma

In this communication, the transmittance characteristics of one dimensional quasi-periodic photonic crystals (PCs) is investigated. The proposed structure consists basically of plasma and nanocomposite layers arranged in accordance to the Fibonacci sequence. The effect of volume density of the plasma and the volume fraction of the nanocomposite material on the properties of the photonic band gaps are studied in detail. The effect of layers thicknesses and the sequence number are also taken into account. We believe that such structures can be potentially beneficial in many novel future applications such as multichannel and pass band filters and optical switches. Additionally, such PCs can be used to design tunable optical devises through controlling the plasma and nanoparticle densities.

The analysis of surface morphology, band gaps and optical properties of PAN/GO thin films

Purpose: PAN/GO nanocomposites are gaining more and more interest from research and industrial environments. According to theoretical studies and experimental tests, PAN/ GO exhibits excellent properties such as tensile strength, good thermal and electrical conductivity, excellent thermal and tribological properties. Thanks to this property, the composite is considered the ideal successor to the nanocomposites used so far. The PAN/GO nanocomposite has great potential in the filtration, automotive, electrical and photovoltaic industry. Design/methodology/approach: The spin-coating process is used to produce thin layers by centrifuging a liquid substance on flat surfaces. The advantages of the spin- coating process are simplicity and ease with which the process can be carried out. Due to the ability to high spin speeds, high airflow leads to fast drying time, which in turn results in high consistency in both macroscopic and nanometre scales. The spin-coting method is usually the starting point and reference point for most academic and industrial processes that require a thin and uniform coating. The use of spin coating has a wide spectrum. This technique can be used to coat small substrates (from a few square mm) up to the coating of flat displays, e.g. TV sets, which may have a meter or more in diameter. Findings: Among the existing methods for producing thin layers, including physical and chemical methods for gas phase deposition or the self-assembly process, the spin-coating process makes it possible to produce uniform thin nanocomposite layers in an easy and cheap way. Spin coating is usually the starting point and reference point for most academic and industrial processes that require a thin and uniform coating. The advantage of the method is the wide spectrum of use. It is used for coating substrates with everything from photoresists, insulators, organic semiconductors, synthetic metals, nanomaterials, metal precursors and metal oxides, transparent conductive oxides and many other materials. Often, spin coating is used to unravel polymer layers or photoresist on semiconductor substrates. Research limitations/implications: Due to the ongoing research on the potential applications of PAN/GO thin layers, including electronics, automotive and photovoltaics, it is worth trying to optimize the parameters of the spin-coiling process such as rotational speed or duration of the process. It is also worth trying to optimize the concentration of GO in the nanocomposite. Practical implications: Despite mixing the solution with an ultrasonic homogenizer to disperse the nanoparticles, the particles dispersed to form a rough surface. Originality/value: Low-cost, easy to carry out method of producing thin nanocomposite layers, having significant application in laboratory environments.

Exploiting the effects of zirconium-based metal organic framework decorated carbon nanofibers to improve CO2/CH4 separation performance of thin film nanocomposite membranes

The challenges of interfacial defects and filler uniform dispersion are still preventing the design of mixed matrix membranes (MMMs) for the purpose of high gas selectivity. In this study, in-situ growth of UiO-66-NH2 on the external surface of carbon nanofibers (CNFs) resulted in the synthesis of a novel CNF/metal organic framework (MOF) composite which embedded into the pebax selective layer of thin-film nanocomposite (TFN) membrane. The uniform structure and defect-free interface was observed by FE-SEM analysis that reveals superior compatibility between polymer chains and CNF/UiO composite. Gas sorption analysis was investigated for pristine thin film composite (TFC) and TFN membranes and then the obtained experimental data were analyzed by Henry–Langmuir and Henry–Freundlich model. The results illustrated that gas permeation for the membranes followed the Henry–Freundlich model. Accordingly, synthesized TFN membranes demonstrated a higher CO2 permeability as well as proper CO2/CH4 selectivity compared to pristine TFC membrane. For instance, the pure and mixed gas permeation results of TFN membrane including 3wt% of CNF/UiO composite represented a high CO2 permeability of around 328 (pure gas permeability) and 230 (mixed gas permeability) Barrer and CO2/CH4 selectivity of around 27 (ideal selectivity) and 21 (real selectivity) at feed pressure of 6bar. Consequently, the TFN membranes exhibit exceptional separation performance in terms of overcoming the Robeson upper bound. The approach of decoration of MOFs on the surface of CNFs can be effective technique to enhance TFN membranes performance.

Does the Type of Polymer and Carbon Nanotube Structure Control the Electromagnetic Shielding in Melt-Mixed Polymer Nanocomposites?

A suitable polymer matrix and well dispersed conducting fillers forming an electrically conducting network are the prime requisites for modern age electromagnetic shield designing. An effective polymer-based shield material is designed that can attenuate 99.9% of incident electromagnetic (EM) radiation at a minimum thickness of <0.5 mm. This is accomplished by the choice of a suitable partially crystalline polymer matrix while comparing non-polar polypropylene (PP) with polar polyvinylidene fluoride (PVDF) and a best suited filler nanomaterial by comparing different types of carbon nanotubes such as; branched, single-walled and multi-walled carbon nanotubes, which were added in only 2 wt %. Different types of interactions (polar-polar and CH-π and donor-acceptor) make b-MWCNT more dispersible in the PVDF matrix, which together with high crystallinity resulted in the best electrical conductivity and electromagnetic shielding ability of this composite. This investigation additionally conceals the issues related to the thickness of the shield material just by stacking individual thin nanocomposite layers containing different carbon nanotube (CNT) types with 0.3 mm thickness in a simple manner and finally achieves 99.999% shielding efficiency at just 0.9 mm thickness when using a suitable order of the different PVDF based nanocomposites.

Inverse infusion processed hierarchical structure towards superhydrophobic coatings with ultrahigh mechanical robustness

Poor mechanical durability still hinders artificial superhydrophobic coatings from practical application, although these coatings were created years ago and still attract wide research interest. Previous epoxy/nanoparticle works seem to encounter a dilemma: a delicate nanostructure and low surface energy without a proper and strong microstructure to provide protection and strength naturally leads to weak mechanical adhesion and poor wear robustness. Herein, we develop an inverse infusion process (IIP) to construct hierarchical structures via newly synthesized hydrophobic and tough epoxy resin as well as rationally selected alumina nanoparticles (NPs). The IIP process forms an uncured epoxy layer first on the substrate and a preliminary nanocomposite coating next using an air spraying method, after which the epoxy layer inversely infuses into the micro/nanostructure and constructs a tougher microstructure on the top as well as a continuous nanocomposite layer throughout the coating after curing. This results in superhydrophobic coatings on a substrate with excellent adhesion and mechanical robustness, and our coatings can tolerate 600 cycles of tape peeling tests (with 3 M high-tack tape), 20 m sandpaper abrasion (with a pressure of ~5 kPa and 80 grit sandpaper), 115 cycles of Taber abrasion (with 250 g load), and 600 g of sand impact from a height of 110 cm, which are the highest values achieved by superhydrophobic coatings to the best of our knowledge. Furthermore, our coatings sustained highly corrosive media, such as sodium hydroxide and hydrochloric acid solutions. A combination of the established IIP process and the rationally selected ingredients dramatically enhanced the mechanical durability of the superhydrophobic coatings, and these attractive materials may attract attention for self-cleaning, anti-icing, and anti-fouling applications in industry.

Layers obtained on TiCN aluminum nanocomposites by electron-beam treatment

The impact of electron beam treatment on aluminum composites containing 0, 2, 5 and 10 wt. % TiCN nanoparticles was studied. Aluminum nanocomposites were produced as rods with 12 mm diameter by means of preliminary cold volume compression and succeeding hot pressing. Cylinders with a height of 10mm were cut from the rods and their flat surfaces treated by scanning electron beam techniques. The electron-beam treatment (EBT) process was carried out using Leybold Heraeus (EWS 300/15–60) electron beam equipment. Two technological regimes were used: with low energy power input Q1 and with high energy power input Q2. Composite layers with a strong bond to the substrate were obtained. Light microscopy (LM), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) were used for characterizing the microstructure. The phase composition of the obtained specimens was studied by means of X-ray diffraction (XRD) using CuKa characteristic radiation (λ=1.54 Å). The microhardness was discussed with respect to the applied technological conditions of the EBT and corresponding microstructure and crystallographic structure of the formed layers. Nanocomposite layers with improved hardness were obtained which is necessary as exploitation surface properties of automobile and aircraft parts. It was found out that the microhardness of samples treated with high energy was much lower than the one of the samples treated with low energy. The strengthening mechanism in the samples was discussed.

Vibration behavior of functionally graded sandwich beam with porous core and nanocomposite layers

This paper presents the influence of carbon nanotubes (CNTs) waviness, aspect ratio, internal pores and graphene platelets (GPLs) on the vibrational behavior of functionally graded nanocomposite sandwich beams resting on two-parameter elastic foundations. The distributions of CNTs are considered functionally graded (FG) or uniform along the thickness of upper and bottom layers of the sandwich beam and their mechanical properties are estimated by an extended rule of mixture. In this study, the classical theory concerning the mechanical efficiency of a matrix embedding finite length fibers has been modified by introducing the tube-to-tube random contact, which explicitly accounts for the progressive reduction of the tubes\' effective aspect ratio as the filler content increases. The core of structure is porous and the internal pores and graphene platelets (GPLs) are distributed in the matrix of core either uniformly or non-uniformly according to three different patterns. The elastic properties of the nanocomposite are obtained by employing Halpin-Tsai micromechanics model. The equations of motion are derived based on Timoshenko beam theory and employing Hamilton\'s principle. The problem is modeled using a semi-analytical approach composed of generalized differential quadrature method (GDQM) and series solution adopted to solve the equations of motion. Detailed parametric studies are carried out to investigate carbon nanotubes (CNTs) waviness, CNT aspect ratio, porosity coefficient, porosity distribution, graphene platelets (GPLs) distribution, Winkler foundation modulus, shear elastic foundation modulus and geometrical conditions on the vibrational behavior of the sandwich structure.

Strain gauge properties of Pd+-ion-implanted polymer

Pd+ ions (90 keV) were implanted at normal incidence and at room temperature in different highly insulating (>200 GΩ) thermoplastic polymers (poly(methyl methacrylate), polypropylene, polyethylene terephthalate glycol-modified, and polycarbonate). At high fluence and optimized process parameters, the ion implantation gives rise to the formation of a nanocomposite thin surface layer constituted by Pd nanoclusters and carbonaceous material (nanographite/amorphous carbon). The morphological, microstructural, and microanalytical properties of the nanocomposite layers were investigated by He-ion microscopy, glancing incidence X-ray diffraction, and Raman scattering, respectively. The electrical properties were characterized by resistance, van der Pauw, and Hall measurements. We performed accurate simultaneous deformation/bending experiments and electrical resistance measurements. We show that the electrical resistance varies linearly with the mechanical deformation (beam deflection) applied. The experimental results are interpreted by “hopping conductivity” model considering the nanostructure configuration of the nanocomposite layers. A gauge factor in the range between 4 and 8, depending on the ion-implanted polymer, was obtained for prototype strain gauge devices.

Titanicone-derived TiO2 quantum dot@carbon encapsulated ZnO nanorod anodes for stable lithium storage.

To address the issues of large volume expansion and low electrical conductivity of ZnO anode nanomaterials during lithium ion battery operation, herein we engineered a rod-like ZnO anode with robust and conductive TiO2 quantum dot (QD)@carbon coating derived from molecular layer deposited titanicone, in which the TiO2 QDs are well confined inside the carbon layer. Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) confirm the formation of TiO2 QDs and carbonization of fumaric acid in hybrid films after annealing in H2 atmosphere at 700 °C. Benefiting from a unique protective layer design, the prepared TiO2 QD@carbon@ZnO nanorod (NR) anodes display outstanding cycling performance with a discharge capacity of 1154 mA h g-1 after 100 cycles and 70% capacity retention, along with a high rate capacity of 470 mA h g-1 for 500 cycles at 2 A g-1. Moreover, our work demonstrates an innovative and promising approach toward a robust and conductive metal oxide QD@carbon nanocomposite layer for electrode materials in the future.

Optimizing the structural design of a nanocomposite catalyst layer for PEM fuel cells for improving mass-specific power density.

For the purpose of redesigning a PEM fuel cell with ultralow Pt loading, this review comprehensively summarizes and comments on recent important findings on ultrathin catalyst layer structures. We introduce recent advances in electrocatalyst research and development (R&D), highlighting the urgency of ultralow Pt loading in the total design of PEM fuel cells. Following that, the reason for a thinner and more ordered electrode structure is presented for the next generation of PEM fuel cells. We then review recent progress in methods for preparing Pt nanoparticles on high-aspect-ratio supports, extended surface area of nanowires (confined agglomerates and nanowires) and ordered arrays. Regarding the ordered arrays, we expatiate on proton conductor arrays and electron conductor arrays, including carbon nanotube-assisted arrays, TiO2 nanotube-assisted arrays, Co-OH-CO3 nanowire-assisted arrays, and pigment red 149-assisted arrays. Challenges related to proton transport and transfer, electron conduction and mass transport are then discussed to supply further research direction.

Morphological changes of the PVD coatings after isothermal annealing

The main of this work is to investigate the impact of the isothermal annealing on the structure and morphological changes on the PVD hard coatings. Three different coatings based on the AlTiN system were deposited onto cemented carbide substrates containing 6 wt% of Co. Two coatings AlTiN/TiAlN and AlTiN/TiN with an initial thickness of 3 μm has a coarse-grained columnar structure with a chemically graded nanomultilayering consisting of alternating Ti-rich and Al-rich layers. In the case of the AlTiN/TiAlN coating, a total of 20 layers were applied. Ten layers had a thickness of 200 nm (AlTiN) and 10 layers with the thickness of 100 nm (TiAlN). The same number of nanolayers was also retained for the AlTiN/TiN multilayer coating. The TiN layers were 100 nm thick. The third coating was a nanocomposite sandwich coating formed by a TiSiN adhesive layer (50nm), a functional nanocomposite AlTiSiN layer (2 μm) and a top functional TiSiN layer with a thickness of 1 μm. The coatings were prepared by cathodic arc evaporation using the LARC® technology. After deposition, the samples were annealed at high temperatures (700 °C, 800 °C, 900 °C, 1000 °C) for one hour in air. With X-ray diffraction and scanning electron microscopy, the morphology, structure and phase composition of coatings and oxide layers after annealing were evaluated.After the heat-treatment at 800 °C, cross-sectional and surface morphology images revealed, that an oxide layer has grown on top of the all coatings. EDS analysis showed that the oxide layers on the multilayers coatings had a layered structure, which was found to be the consequence of the high diffusion rate of Al. The interface with the coatings was very rough. It was depleted of Al, which diffused to the upper surface of the oxide. The oxidation process of nanocomposite AlTiSiN/TiSiN coating started by forming an oxide layer of ternary Ti–Si–O at the interface. This system segregated into two phases of TiO2 and SiO2. The nanocomposite coating remained stable even after annealing at 1000 °C. The surface of the multilayers was accompanied by a network of cracks at this temperature. An interesting phenomenon was also observed on the substrates itself during the annealing. As a result of oxidation, unprotected sides of the substrates expanded. Globular oxides based on tungsten and cobalt were also formed on the surface of the samples at the places where the coating was peeled off. The reasons for the differences are discussed.

RETRACTION NOTICE: Dynamic response control of aluminum beams integrated with nanocomposite piezoelectric layers subjected to blast load using hyperbolic visco-piezo-elasticity theory

RETRACTION NOTICE: Dynamic response control of aluminum beams integrated with nanocomposite piezoelectric layers subjected to blast load using hyperbolic visco-piezo-elasticity theory

Postbuckling Behavior of Functionally Graded Multilayer Graphene Nanocomposite Plate under Mechanical and Thermal Loads on Elastic Foundations

This paper presents an analytical approach to postbuckling behaviors of functionally graded multilayer nanocomposite plates reinforced by a low content of graphene platelets (GPLs) using the first order shear deformation theory, stress function and von Karman-type nonlinear kinematics and include the effect of an initial geometric imperfection. The weight fraction of GPL nano fillers is assumed to be constant in each individual GPL-reinforced composite (GPLRC). The modified Halpin-Tsai micromechanics model that takes into account the GPL geometry effect is adopted to estimate the effective Young’s modulus of GPLRC layers. The plate is assumed to resting on Pasternak foundation model and subjected to mechanical and thermal loads. The results show the influences of the GPL distribution pattern, weight fraction, geometry, elastic foundations, mechanical and temperature loads on the postbuckling behaviors of FG multilayer GPLRC plates.
 Keywords: Postbuckling; Graphene nanocomposite plate; First order shear deformation plate theory.
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Preparation of NiCrAlY/nano-CeO2 powder with the core-shell structure using high-velocity oxy-fuel spraying process

In this study, NiCrAlY/nano-CeO2 feedstock powders with core-shell structure were prepared via ball-milling process and subsequent direct spraying of the powder into the water using high-velocity oxy-fuel (HVOF) spraying method. X-ray powder diffraction, scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS), Atomic absorption spectroscopy (AAS) and Ultraviolet–visible spectroscopy (UV–Vis) tests were utilized for characterization of the processed powders. Results indicated that powders with core-shell structure were successfully prepared using this method. In this regard, each core-shelled particle consisted of a relatively homogeneous and uniform nanocomposite layer (shell) including dispersed CeO2 nanoparticles on the surface of NiCrAlY together with ultra-fine grained structure. Furthermore, the absorbance spectra of the core-shelled powder is different from the ball-milled powder due to the homogenizing and stabilizing effect of CeO2 nanoparticles in the shell after direct HVOF spraying. The consequences of the Williamson-Hall plot analysis demonstrated that the core-shelled NiCrAlY/nano-CeO2 powder has smaller crystallite size and also has a considerable lattice strain compared to the conventional NiCrAlY powder owing to the rapid melting and solidification during direct HVOF spraying into the water.

A Tanshinone IIA loaded hybrid nanocomposite with enhanced therapeutic effect for otitis media.

Otitis media, commonly known as middle ear inflammation, is among one of the most common maladies and results in significant morbidity such as loss of hearing. In view of the bacteria invasion such as Staphylococcus aureus causes the majority forms of otitis media, drug treatment generally uses antibacterial by topical or systematic approach. However, the effectiveness of antibacterial is diminishing because of the rapid emergence of antibiotic-resistant bacterial strains. Here, we designed and fabricated a silver nanoparticle (AgNPs)-based multicomponent hybrid nanocomposite termed as TSIIA @ CS/Lys @ AgNPs, which was comprised of a AgNPs core, a chitosan (CS) or lysozyme (Lys) middle layer, and a Tanshinone IIA (TSIIA) inclusion outlayer. Coating of CS or Lys to AgNPs through electrostatic interaction probably produced a core-shell nanocomplex resembling the endocarp of walnut. This design could reduce the dosage of AgNPs while maintaining antibacterial activity possibly due to the favorable interactions between nanocomplex and bacteria. The deposition of Chinese herb active component TSIIA by inclusion complexation formed the out layer of hybrid nanocomposite towards an improved antibacterial performance, which showed a therapeutic effect against acute otitis media of guinea pig comparable to the clinical commercial-used ofloxacin administrated by injection. The hybrid nanocomposite, when dispersed in poly (lactic-co-glycolic acid)/N-methyl-2-pyrrolidone (PLGA/NMP) solution as an in-situ organogel, not only maintained the therapeutic effectiveness, but also possessed the advantage of lower injection frequency compared with solution formulation. In addition, no obvious toxicity to the basilar membrane and epithelia tissue was observed after the healthy guinea pigs were treated with hybrid nanocomposite or organogel. This study provides a promising strategy to develop hybrid nanocomposite with enhanced antibacterial efficacy and also opens a new way for the establishment of efficient therapeutic systems with reduced administration frequency as substitute of antibiotics to treat otitis media.