Novel dye-sensitized solar cell architecture using TiO2-coated Ag nanowires array as photoanode  

作　　者：Ming Wang Sam Zhang Zhao-Fu Du Li-Dong Sun Dong-Liang Zhao 

机构地区：[1]Department of Functional Material Research, Central Iron and Steel Research Institute, Beijing 100081, China [2]School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639789, Singapore

出　　处：《Rare Metals》2019年第4期316-320,共5页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51301041)

摘　　要：With the aim of reducing series resistance and increasing dye loading,novel dye-sensitized solar cell architecture was designed with TiO2 nanoparticle-coated Ag nanowires array as the photoanode.Ag nanowire array was prepared by anodic aluminum oxide (AAO) templateassisted electrochemical deposition route.Then,Ag nanowires were coated by TiO2 nanoparticles in hydrothermal process.The structures of the photoanode were characterized by field emission scanning electron microscopy (FESEM).Ag nanowires are covered by a layer of very fine nanoparticles with a diameter of less than 5 nm.X-ray diffraction (XRD) and selected-area electron diffraction (SAED) show that Ag nanowires have a strong preferred orientation in (220) direction and the TiO2 coating layer is a polycrystalline structure.With this photoanode,3.2 % conversion efficiency is achieved for the cell sensitized with N3 dye.With the aim of reducing series resistance and increasing dye loading, novel dye-sensitized solar cell architecture was designed with TiO2 nanoparticle-coated Ag nanowires array as the photoanode. Ag nanowire array was prepared by anodic aluminum oxide（AAO） templateassisted electrochemical deposition route. Then, Ag nanowires were coated by TiO2 nanoparticles in hydrothermal process. The structures of the photoanode were characterized by field emission scanning electron microscopy（FESEM）. Ag nanowires are covered by a layer of very fine nanoparticles with a diameter of less than 5 nm. X-ray diffraction（XRD） and selected-area electron diffraction（SAED） show that Ag nanowires have a strong preferred orientation in（220） direction and the TiO2 coating layer is a polycrystalline structure. With this photoanode, 3.2%conversion efficiency is achieved for the cell sensitized with N3 dye.

关 键 词：DYE-SENSITIZED solar cell Nano WIRES ARRAY PHOTOANODE Anodic aluminum OXIDE 

分 类 号：TF[冶金工程]