TY - JOUR
T1 - The control of surface texture for planar CH3NH3PbI3−xClx film and its effect on photovoltaic performance
AU - Wang, Wenzhen
AU - Xu, Haitao
AU - Xu, Wenqiang
AU - Wu, Yanglin
AU - Cao, Runan
AU - Zhu, Jiabin
AU - Fang, Zebo
AU - Hong, Feng
AU - Xu, Run
AU - Xu, Fei
AU - Wang, Linjun
AU - Huang, Jian
AU - Lu, Yicheng
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China (Nos. 11375112 and 51272159), and Natural Science Foundation of Zhejiang province (LY15A040001). The authors also thank Instrumental Analysis and Research Center of Shanghai University for the SEM and XRD work carried out.
Publisher Copyright:
© 2016, Springer Science+Business Media New York.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - The surface texture with a long alignment was observed on the surface of CH3NH3PbI3−xClx films prepared using one-step solution deposition. We found that it appears only when hydroiodic acid with stabilizer H3PO2 is adopted to prepare CH3NH3I powder. However, even with this stabilizer, the surface texture of CH3NH3PbI3−xClx 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.
AB - The surface texture with a long alignment was observed on the surface of CH3NH3PbI3−xClx films prepared using one-step solution deposition. We found that it appears only when hydroiodic acid with stabilizer H3PO2 is adopted to prepare CH3NH3I powder. However, even with this stabilizer, the surface texture of CH3NH3PbI3−xClx 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.
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U2 - 10.1007/s10854-016-4981-8
DO - 10.1007/s10854-016-4981-8
M3 - Article
AN - SCOPUS:84969135854
SN - 0957-4522
VL - 27
SP - 9384
EP - 9390
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 9
ER -