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Flexible electronics based on one-dimensional and two-dimensional hybrid nanomaterials

InfoMat 2020年第1期2卷 33-56页

作者： Jihun Park Jae Chul Hwang Gon Guk Kim Jang-Ung Park Department of Materials Science and Engineering Nano Science Technology InstituteYonsei UniversitySeoulRepublic of Korea Center for Nanomedicine Institute for Basic Science(IBS)Yonsei-IBS InstituteSeoulRepublic of Korea

Research on flexible or wearable electronics has been grown remarkably due to the advent of nanomaterials,such as metal nanowires,graphene,or transition metal *** each nanomaterial has mechanical and electrical characteristics that can be applied into flexible electronics,the limitations of each nanomaterial are also *** order to overcome the limitations of these nanomaterials,research on the hybrid structures of nanomaterials has been extensively *** this study,we introduce the properties of one-dimensional nanomaterials,twodimensional nanomaterials,and their hybrid *** then,we provide information concerning various flexible electronics based on these nanomaterials.

关键词： flexible electronics hybrid nanomaterials one-dimensional nanomaterials two-dimensional nanomaterials wearable electronics

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Design and fabrication of 1-D semiconductor nanomaterials for high-performance photovoltaics

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Science Bulletin 2016年第5期61卷 357-367页

作者： Ning Han Zaixing Yang Lifan Shen Hao Lin Ying Wang Edwin Y.B.Pun Yunfa Chen Johnny C.Ho State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of SciencesBeijing 100190 China CAS Center for Excellence in Urban Atmospheric Environment Xiamen 361021 China Department of Physics and Materials Science City University of Hong Kong Hong Kong China State Key Laboratory of Millimeter Waves City University of Hong Kong Hong Kong China Shenzhen Research Institute City University of Hong KongShenzhen 518057 China Department of Electronic Engineering City University of Hong Kong Hong Kong China

To date, the cost-effective utilization of solar energy by photovoltaics for large-scale deployment remains challenging. Further cost minimization and efficiency maximization, through reduction of material consumption, simplification of device fabrication as well as optimization of device structure and geometry, are required. The usage of 1D nanomaterials is attractive due to the outstanding light coupling effect, the ease of fabrication, and integration with one-dimensional(1-D) semiconductor materials. The light absorption efficiency can be enhanced significantly, and the corresponding light-toelectricity conversion efficiency can be as high as their bulk counterparts. Also, the amount of active materials used can be reduced. This review summarizes the recent development of 1-D nanomaterials for photovoltaic applications, including the anti-reflection, the light absorption,the minority diffusion, and the semiconductor junction properties. With solid progress and prospect shown in the past 10 years, 1-D semiconductor nanomaterials are attractive and promising for the realization of high-efficiency and low-cost solar cells.

关键词： one-dimensional nanomaterials Photovoltaics Solar cells Light absorption Minority diffusion length Semiconductor junction

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High-Performance Li-ion Batteries and Super-capacitors Based on Prospective 1-D nanomaterials

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Nano-Micro Letters 2011年第1期3卷 62-71页

作者： Dandan Zhao Ying Wang Yafei Zhang Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education Research Institute of Micro/Nanometer Science and Technology Shanghai Jiao Tong University Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province College of Chemistry and Chemical Engineering Lanzhou University

one-dimensional（1-D） nanomaterials with superior specific capacity, higher rate capability, better cycling peroperties have demonstrated significant advantages for high-performance Li-ion batteries and supercapacitors. This review describes some recent developments on the rechargeable electrodes by using 1-D nanomaterials（such as Li Mn2O4 nanowires, carbon nanofibers, Ni Mo O4 · n H2O nanorods, V2O5 nanoribbons,carbon nanotubes, etc.）. New preparation methods and superior electrochemical properties of the 1-D nanomaterials including carbon nanotube（CNT）, some oxides, transition metal compounds and polymers, and their composites are emphatically introduced. The VGCF/Li Fe PO4/C triaxial nanowire cathodes for Li-ion battery present a positive cycling performance without any degradation in almost theoretical capacity（160 m Ah/g）.The Si nanowire anodes for Li-ion battery show the highest known theoretical charge capacity（4277 m Ah/g）,that is about 11 times lager than that of the commercial graphite（372 m Ah/g）. The SWCNT/Ni foam electrodes for supercapacitor display small equivalent series resistance（ESR, 52 m?） and impressive high power density（20 k W/kg）. The advantages and challenges associated with the application of these materials for energy conversion and storage devices are highlighted.

关键词： one-dimensional nanomaterials Li-ion battery Supercapacitor Electrochemical property

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Electrostabilized homogeneous dispersion of boron nitride nanotubes in wide-range of solvents achieved by surface polarity modulation through pyridine attachment

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Nano Research 2020年第2期13卷 344-352页

作者： Mi Se Chang Min-Sun Jang Sangsun Yang Jihun Yu Taehoon Kim Sedong Kim Hyomin Jeong Chong Rae Park Jae Won Jeong Powder/Ceramic Research Division Korea Institute of Materials Science797 Changwondae-roSeongsan.guChangwon 51508Republic of Korea Research Institute of Advanced Materials and Department of Materials Science and Engineering Seoul National University Seoul 08826Republic of Korea Composites Research Division Korea Institute of Materials Science797 Changwondae-roSeongsan-guChangwon 51508Republic of Korea Dept.of Energy and Mech.Eng Gyeongsang National UniversityCheondaegukchi-Gil 38Tongyeong 53064Republic of Korea

Boron nitride nanotubes(BNNTs)show exceptional physical properties including high mechanical strength and thermal conductivity;however,their applications have been restricted due to limited dispersibility in processing ***,a novel BNNT dispersion method with exceptional dispersibility in a wide range of solvents has been demonstrated by surtace polarity modulation through short-molecule pyridine *** atoms in pyridine are selectively bonded to electron-deficient boron atoms of the BNNT surface through Lewis acid-base reaction,which changes the surface polarity of BNNTs from neutral to ***-dispersing pyridine-attached BNNTs(Py-BNNTs)create a thick and stable electronic double layer(EDL),resulting in uniform dispersion of BNNTs in solvents with an exceptional solubility parameter range of 18.5-48 MPa^1/*** uniform dispersion of BNNTs is maintained even after the mixing with diverse ***,composites incorporating uniformly-distributed BNNTs have been realized,and extraordinary property enhancements have been *** thermal conductivity of 20 wt.%Py-BNNT/epoxy composite has been significantly improved by 69.6%and the tensile strength of 2 wt.%Py-BNNT/PVA has been dramatically improved by 75.3%.Our work demonstrates a simple and facile route to dispersing BNNTs in diverse solvents,consequently leading to selective utlization of BNNT dispersed solvents in various application fields.

关键词： boron nitride nanotube one-dimensional nanomaterials surface polarity modulation electrostabilization boron nitride nanotube composite

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