期刊
THIN SOLID FILMS
卷 517, 期 2, 页码 952-956出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2008.07.031
关键词
Fermi level; TiO2; SnO2; Dye sensitized solar cell; Flat-Band tuning; Flat band potential; Solar cell efficiencies
类别
资金
- National Science Foundation, Sri Lanka [NSF/RG/P/2004/02]
Flat-Band (FB) potentials of TiO2 and SnO2 nanoparticles shifted negatively once they were coated with a thin insulating MgO layer. For core-shell structured TiO2-MgO and SnO2-MgO composites, incorporation of 1% (w/w) of MgO results in negative shift in FB potential of TiO2 and SnO2 nanoparticles by -0.15 eV and -0.38 eV, respectively. The negative shift of FB increased with the increase of MgO content. The highest shifts in FB potential reached -0.85 eV and -0.65-0.70 eV (vs Standard Calomel Electrode) when MgO content was equal to 10% (w/w) and 10-15% (w/w) for SnO2 and TiO2 respectively. In this investigation, interconnection between the negative shift in FB potential and the efficiencies of dye sensitized solar cells based on the prepared materials are discussed. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据