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- Title
The control of surface texture for planar CHNHPbICl film and its effect on photovoltaic performance.
- Authors
Wang, Wenzhen; Xu, Haitao; Xu, Wenqiang; Wu, Yanglin; Cao, Runan; Zhu, Jiabin; Fang, Zebo; Hong, Feng; Xu, Run; Xu, Fei; Wang, Linjun; Huang, Jian; Lu, Yicheng
- Abstract
The surface texture with a long alignment was observed on the surface of CHNHPbICl films prepared using one-step solution deposition. We found that it appears only when hydroiodic acid with stabilizer HPO is adopted to prepare CHNHI powder. However, even with this stabilizer, the surface texture of CHNHPbICl films can also be eliminated completely by sufficiently lateral diffusion before annealing, which can be achieved by high speed coating above 3000 rpm or drying for 30 min at room temperature. The later process results in a smooth surface with homogeneous grains and hence the improvement of photovoltaic performance.
- Subjects
THIN films; PHOTOVOLTAIC cells; SURFACE texture; SEDIMENTATION &; deposition; ABSORPTION
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 9, p9384
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-4981-8