文献类型：期刊文献

英文题名：Roughness improvement of fluorine-doped tin oxide thin films by using different alcohol solvents

作者：Shi, Xiang Lei;Wang, Jian Tao;Wang, Jian Nong[1]

机构：[1]E China Univ Sci & Technol, Nanox Res Ctr, Sch Mech & Power Engn, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2014

卷号：611

起止页码：297

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20142517852118);WOS:【SCI-EXPANDED(收录号:WOS:000338932400047)】；

基金：Financial supports from National Natural Science Foundation of China (project #: 51271077 and U1362104) and Shanghai Nanoscience and Nanotechnology Promotion Center (project #: 12nm0503300) are greatly acknowledged.

语种：英文

外文关键词：Fluorine-doped tin oxide films; Roughness; Alcohol solvents; Light trapping; Solar cells

摘要：Current development of rough fluorine doped tin oxide (FTO) films is limited by the tradeoff of roughness with optical transmittance and electrical resistivity since none of them can be improved without sacrificing the other. In this study, we report a large roughness improvement by using different alcohols for dissolving SnCl4 without losing the conductivity and transmittance, and attribute the improvement to the change from (211) to (110) preferred orientation. In the optimal case where ethanol solvent is used, the film has an arithmetic average roughness of 37 nm (root mean square roughness of 45 nm), a transmittance of 85-89%, and a resistivity of 6.3 x 10 (4)Omega cm at a thickness of 300 nm. Compared with previous films with a similar roughness but a larger thickness of 800 nm and a lower transmittance of <80%, the present thin film with an excellent combination of high roughness, high transparency, and high conductivity may be used for improving the light trapping and thus the efficiency of solar cells. (C) 2014 Elsevier B.V. All rights reserved.