Improved light absorption and charge transport for perovskite solar cells with rough interfaces by sequential deposition
Recently, highly efficient solar cells based on organic-inorganic perovskites have been intensively reported for developing fabricating methods and device structures. Additional power conversion efficiency should be gained without increasing the thickness and the complexity of the devices to accord...
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| Veröffentlicht in: | Nanoscale 2014-07, Vol.6 (14), p.8171-8176 |
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| container_title | Nanoscale |
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| creator | Zheng, Lingling Ma, Yingzhuang Chu, Saisai Wang, Shufeng Qu, Bo Xiao, Lixin Chen, Zhijian Gong, Qihuang Wu, Zhaoxin Hou, Xun |
| description | Recently, highly efficient solar cells based on organic-inorganic perovskites have been intensively reported for developing fabricating methods and device structures. Additional power conversion efficiency should be gained without increasing the thickness and the complexity of the devices to accord with practical applications. In this paper, a rough interface between perovskite and HTM was fabricated in perovskite solar cells to enhance the light scattering effect and improve the charge transport. The parameters related to the morphology have been systematically investigated by sequential deposition. Simultaneous enhancements of short-circuit current and power conversion efficiency were observed in both CH₃NH₃PbI₃ and CH₃NH₃PbI₃-xClx devices containing the rough interface, with power conversion efficiencies of 10.2% and 10.8%, respectively. Our finding provides an efficient and universal way to control the morphology and further optimize perovskite solar cells for devices by sequential deposition with various structures. |
| doi_str_mv | 10.1039/c4nr01141d |
| format | Article |
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| ispartof | Nanoscale, 2014-07, Vol.6 (14), p.8171-8176 |
| issn | 2040-3364 2040-3372 |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Charge transport Deposition Devices Energy conversion efficiency Morphology Perovskites Photovoltaic cells Solar cells |
| title | Improved light absorption and charge transport for perovskite solar cells with rough interfaces by sequential deposition |
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