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Sol-gel-derived hybrid Conductive films for Electromagnetic Interference (EMI) Shielding

Journal of Wuhan University of Technology(Materials Science) 2011年第2期26卷 217-222页

作者：解基源 School of Information and Comunication Engineering North University or China

The conductive nano-sized zinc particles were embedded in an insulating amorphous silica matrix,and the hybrid films were obtained by a sol-gel method.The stable hybrid sol solution was prepared by hydrolysis and condensation of Methyltrimethoxysilane （MTMS） with a one-step acidic catalyst process.hybrid films were dip-coated on silicon wafer and cured at 120℃ for 60minutes.The structural characterization of hybrid films were investigated by means of attenuated total reflection infrared （ATR-IR） spectroscopy and X-ray diffraction （XRD）.The electrical properties of the films were examined with four-point probe.hybrid films showed to be relatively dense,uniform and defect free.The conductivity of hybrid films was varied with the different contents of zinc nanoparticles and the thickness of the film.It was observed that there was the percolation threshold for the film＇s electrical properties.

关键词： sol-gel hybrid films conductive EMI shielding

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A Simple Approach to the Fabrication of Graphene-Carbon Nanotube hybrid films on Copper Substrate by Chemical Vapor Deposition

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Journal of Materials Science & Technology 2015年第5期31卷 479-483页

作者： Nguyen Van Chuc Cao Thi Thanh Nguyen Van Tu Vuong T.Q Phuong Pham Viet Thang Ngo Thi Thanh Tam Institute of Materials Science Vietnam Academy of Science and Technology Hanoi University of Science Vietnam National University

In this study,graphene-carbon nanotube（CNT） hybrid films were directly synthesized on polycrystalline copper（Cu） substrates by thermal chemical vapor deposition（CVD） method.Graphene films were synthesized on Cu substrate at 1000 ℃ in mixture of gases:argon（Ar）,hydrogen（H2）,and methane（CH4）.Then,carbon nanotubes（CNTs） were grown uniformly on the surface of graphene/Cu films at 750 ℃ in mixture of Ar,H2.and acetylene（C2H2） gases.Ferric salt FeCl3solution deposited onto the surface of graphene/Cu substrate by spin coating method was used as precursor for the growth of the CNTs.The density and quality of the CNTs on the surface of graphene/Cu films can be controlled by varying the concentration of FeCl3salt catalyst.

关键词： Graphene Carbon nanotube(CNT) hybrid films Copper

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Transparent and conductive PEDOT:PSS/Ag NW/PEDOT:PSS hybrid films prepared by spin-coating at room temperature

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Journal of Semiconductors 2015年第12期36卷 48-52页

作者：岳情情闫金良孟德兰 School of Physics and Optoelectronic Engineering Ludong University

PEDOT：PSS/Ag NW/PEDOT：PSS hybrid films were deposited on PET substrates by the spin coating technique at room temperature. The optical transmittance, sheet resistance, crystallization and surface morphology were characterized by using the double beam spectrophotometer, Hall effect system, X-ray diffractometer and field emission scanning electron microscopy. XRD patterns of the hybrid films display characteristic diffraction peaks of Ag （111） and Ag （200）, and the Ag NW networks have a polycrystalline structure with a Ag （111） preferred orientation. A high transmittance of 83.95% at the 550 nm wavelength and a low sheet resistance of 21.98 Ω/□ are achieved for 3-PEDOT：PS S/5-Ag NW/3-PEDOT： PS S hybrid films.

关键词： transparent conductive film sheet resistance transmittance silver nanowires hybrid films

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Preparation and characterization of polyimide/silica/silver composite films

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Frontiers of Chemical Science and Engineering 2008年第3期2卷 291-295页

作者： Ning LUO Zhanpeng WU Nanxiang MOU Lizhong JIANG Dezhen WU State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China

Polyimide/silica/silver hybrid films were prepared by the sol-gel method combined with in situ singlestage self-metallization technique.The structure of polyimide films in the thermal curing process and the influence of silica content on the migration and aggregation of silver particles to the surface of hybrid films were investigated.The hybrid films were characterized by transmission electron microscopy,dynamic mechanical thermal analysis,Fourier transform infrared spectroscopy,ultraviolet visible spectroscopy and mechanical measurements.The results indicated that there was no degradation of the polyimide matrix after the formation of silica and silver particles.Silica acted as the nucleus for the silver particles.With increasing silica content,more and more silver particles were kept in the hybrid films instead of beingmigrated onto the surface of the hybrid films and the reflections of hybrid films decreased gradually.

关键词： polyimide silica silver self-metallization hybrid films

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Enhancing the Performance of Perovskite Solar Cells by hybridizing SnS Quantum Dots with CH3NH3PbI3

Enhancing the Performance of Perovskite Solar Cells by Hybri...

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第五届新型太阳能电池学术研讨会

作者： Jianhua Han Hong Lin State Key Laboratory of New Ceramics and Fine Processing Department of Materials Science and Engineering Tsinghua University

The combination of perovskite solar cells and quantum dot solar cells has significant potential due to the complementary nature of the two constituent materials.In this study, solar cells(SCs) with a hybrid CHNHPbI/SnS quantum dots(QDs)absorber layer were fabricated by a facile and universal in situ crystallization method,enabling easy embedding of the QDs in perovskite layer. Compared with SCs based on CHNHPbI, SCs using CHNHPbI/SnS QDs hybrid films as absorber achieved a 25% enhancement in efficiency, giving rise to an efficiency of 16.8%. The performance improvement can be attributed to the improved crystallinity of the absorber, enhanced photo-induced carriers’ separation and transport within the absorber layer and improved incident light utilization. The generality of the methods used in this work paves a universal pathway for preparing other perovskite/QDs hybrid materials and the synthesis of entire non-toxic perovskite/QDs hybrid structure.

关键词： perovskite quantum dots solar cells hybrid films in situ crystallization

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Fabrication of Reduced Graphene Oxide/PEDOT–PSS Composite material as Transparent Conductive films

Fabrication of Reduced Graphene Oxide/PEDOT–PSS Composite m...

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第一届新型太阳能电池暨钙钛矿太阳能电池学术研讨会

作者： Luo Songping Lin Hong Gu Youchen Liu Chenyang Li Jianbao State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua University College of Materials Science and Chemical Engineering Hainan University

Chemical reduction of graphene oxide can be used to produce large quantities of reduced graphene oxide for potential application in electronics, optoelectronics, composite materials and energy-storage devices. Acid treated polystyreneslufonate doped poly(3,4-ethylenedioxythiophene) film has relatively high conductivity, flexibility, and transmittance. Here hybrid films composed of reduced graphene oxide(RGO) and polystyreneslufonate doped poly(3,4-ethylenedioxythiophene)(RGO/PEDOT–PSS) were prepared by using a spin-coating method. The de-oxygenation of graphene oxide was performed by HI and the composite material was treated by Acid. Compared to PEDOT-PSS films, the RGO/PEDOT – PSS hybrid films have improved electrical conductivity(70Ωper square), while the high transmittance of the composite film was maintained over 87%. Our study demonstrates a promising material to replace ITO as the transparent conductive films.

关键词： reduced graphene oxide PEDOT-PSS hybrid films transparent conductive films

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