一种用于增强钙钛矿太阳能电池性能的SnO电子传输层的氯化钠改性
A Sodium Chloride Modification of SnO Electron Transport Layers to Enhance the Performance of Perovskite Solar Cells.
作者信息
Lin Ching Chang, Murakami Takurou N, Chikamatsu Masayuki, Bessho Takeru, Furue Miwako, Segawa Hiroshi
机构信息
Department of General System Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 113-8654, Japan.
Global Zero Emission Research Center (GZR), National Institute of Advanced Industrial Science and Technology (AIST), Tokyo 100-8921, Japan.
出版信息
ACS Omega. 2021 Jul 2;6(28):17880-17889. doi: 10.1021/acsomega.1c01286. eCollection 2021 Jul 20.
A sodium chloride modification was applied where different amounts of sodium chloride was physically blended in a tin oxide colloid solution to passivate the interface between the electron transport layer (ETL) and perovskite layer and improve the performance of perovskite solar cells. Sodium chloride-modified tin oxide was utilized as the electron transport material to fabricate perovskite solar cells. It was found that sodium chloride-modified tin oxide as an ETL could considerably enhance the performance of the device compared to pristine tin oxide. The power conversion efficiency of the perovskite solar cell displayed 8.8% remarkable improvement from 18.7 ± 0.4% to 20.3 ± 0.3% on average and 9.5% improvement from 18.9 to 20.7% in champion devices because of the considerable enhancement of the fill factor when 25 mM sodium chloride-modified tin oxide as the ETL was used in comparison with pristine tin oxide.
采用了氯化钠改性方法，即将不同量的氯化钠物理混合到氧化锡胶体溶液中，以钝化电子传输层（ETL）与钙钛矿层之间的界面，并提高钙钛矿太阳能电池的性能。使用氯化钠改性的氧化锡作为电子传输材料来制备钙钛矿太阳能电池。结果发现，与原始氧化锡相比，作为ETL的氯化钠改性氧化锡可以显著提高器件的性能。由于当使用25 mM氯化钠改性氧化锡作为ETL时填充因子显著提高，钙钛矿太阳能电池的功率转换效率平均从18.7±0.4%显著提高到20.3±0.3%，提高了8.8%，在最佳器件中从18.9%提高到20.7%，提高了9.5%。
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