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| Preparation and Performance of Perovskite Solar Cells with NiO Films as Hole Transporting Layers |
| WANG Gang1, YANG Dingming1, LIU Jiang2
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1 School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621000;
2 Chengdu Science and Technology Development Center of CAEP, Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu 610299 |
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Abstract Recently,organic-inorganic hybrid perovskite solar cell attracted extensive attentions in photovoltaic community due to its great advantages such as strong light absorption and long carrier diffusion length. The inorganic NiO thin film as the hole transport layer in perovskite solar cell has become an important subject. NiO thin films were prepared by spin coating. The effects of sintering temperature and precursor solution concentration on the properties of NiO thin films and the corresponding solar cells were studied. Scanning electron microscopy, X-ray diffraction, UV-Vis spectroscopy, current-voltage measurement, quantum efficiency were carried out to analysis the properties of NiO thin films and the corresponding solar cells. The results showed that the NiO thin films prepared by spin coating exhibits good coverage and a very low surface roughness. The best device could be obtained when the precursor solution concentration is 0.05 mol/L and the sintering temperature is 500 ℃. With the optimized preparation condition, a maximum power conversion efficiency of 14.62% was achieved.
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Published: 08 May 2018
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2017, Vol. 31 
