期刊
NANOSCALE
卷 6, 期 22, 页码 13854-13860出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr04007d
关键词
-
类别
资金
- NTU [M4081293]
- Singapore NRF through the Competitive Research Program [NRF-CRP4-2008-03]
- Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE Programme
Organic-inorganic lead halide perovskites have been widely used as absorbers on mesoporous TiO2 films as well as thin films in planar heterojunction solar cells, yielding very high photovoltaic conversion efficiencies. Both the addition of chloride and sequential deposition methods were successfully employed to enhance the photovoltaic performance. Here, both approaches are combined in a sequential method by spincoating PbCl2 + Pbl(2) on a mesoporous TiO2 film followed by the perovskite transformation. The role of Cl in determining the optical, electrical, structural and morphological properties is correlated with the photovoltaic performance. The highest photovoltaic efficiency of 14.15% with the V-oc, FF and J(sc) being 1.09 V. 0.65 and 19.91 mA cm(-2) respectively was achieved with 10 mol% of PbCl2 addition due to an increase of the film conductivity induced by a better perovskite morphology. This is linked to an improvement of the hysteresis and reproducibility of the solar cells.
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