| 基于能带工程制备氧化镍基底的高效锡-铅共混钙钛矿太阳能电池 |
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| 作者姓名： | 陈昊 彭子键 徐凯敏 魏旗 虞丹妮 韩聪聪 李晗升 宁志军 |
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| 作者单位： | School of Physical Science and Technology;Shanghai Institute of Ceramics;School of Chemistry and Chemical Engineering |
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| 基金项目： | the National Key Research and Development Program of China(2016YFA0204000);the National Natural Science Foundation of China(61935016,U1632118 and 21571129);start-up funding from ShanghaiTech University;the Center for High-resolution Electron Microscopy(C?EM)at ShanghaiTech University(EM02161943);Young 1000 Talents Program;Science Fund for Creative Research Groups(21421004)。 |
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| 摘 要： | 钙钛矿叠层太阳能电池因为具有超过肖克利-奎伊瑟效率极限的潜力而备受关注.窄带隙锡-铅(Sn-Pb)共混钙钛矿太阳能电池(PSCs)在钙钛矿叠层太阳能电池的构建中起着关键作用.制备稳定性好、可低温处理的空穴输送层是构建高效Sn-Pb钙钛矿太阳能电池和钙钛矿叠层太阳能电池的关键.在此,我们开发了一种室温处理的纳米晶体氧化镍...
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| 关 键 词： | 钙钛矿太阳能电池 功率转换效率 叠层太阳能电池 窄带隙 空穴传输层 空穴传输材料 能带工程 氧化镍 |
Band alignment towards high-efficiency NiOx-based Sn-Pb mixed perovskite solar cells |
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| Authors: | Hao Chen Zijian Peng Kaimin Xu Qi Wei Danni Yu Congcong Han Hansheng Li Zhijun Ning |
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| Affiliation: | (School of Physical Science and Technology,ShanghaiTech University,Shanghai,201210,China;Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai,200050,China;School of Chemistry and Chemical Engineering,University of Chinese Academy of Sciences,Beijing,100049,China) |
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| Abstract: | Narrow-bandgap tin-lead(Sn-Pb)mixed perovskite solar cells(PSCs)play a key role in constructing perovskite tandem solar cells that are potential to overpass Shockley-Queisser limit.A robust,chemically stable and lowtemperature-processed hole transporting layer(HTL)is essential for building high-efficiency Sn-Pb solar cells and perovskite tandem solar cells.Here,we explore a roomtemperature-processed NiOx(L-NiOx)HTL based on nanocrystals(NCs)for Sn-Pb PSCs.In comparison with hightemperature-annealed NiOx(H-NiOx)film,the L-NiOx film shows deeper valence band and lower trap density,which increases the built-in potential and reduces carrier recombination,leading to a power conversion efficiency of 18.77%,the record for NiOx-based narrow-bandgap PSCs.Furthermore,the device maintains about 96%of its original efficiency after 50 days.This work provides a robust and room-temperatureprocessed HTL for highly efficient and stable narrow-bandgap PSCs. |
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| Keywords: | band alignment NiOx Sn-Pb mixed perovskite solar cell |
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