期刊
ADVANCED FUNCTIONAL MATERIALS
卷 24, 期 38, 页码 6046-6055出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201401658
关键词
photovoltaics; dye-sensitized solar cells; device stability; photodegradation; thermal degradation; perovskite solar cells
类别
资金
- EPSRC
- Oxford Photovoltaics Ltd
- EC through the FP7 project SANS
- Grants-in-Aid for Scientific Research [14J12564] Funding Source: KAKEN
Reversible photo-induced performance deterioration is observed in mesoporous TiO2-containing devices in an inert environment. This phenomenon is correlated with the activation of deep trap sites due to astoichiometry of the metal oxide. Interestingly, in air, these defects can be passivated by oxygen adsorption. These results show that the doping of TiO2 with aluminium has a striking impact upon the density of sub-gap states and enhances the conductivity by orders of magnitude. Dye-sensitized and perovskite solar cells employing Al-doped TiO2 have increased device efficiencies and significantly enhanced operational device stability in inert atmospheres. This performance and stability enhancement is attributed to the substitutional incorporation of Al in the anatase lattice, permanently passivating electronic trap sites in the bulk and at the surface of the TiO2.
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