首页|Influence of precursor concentration on printable mesoscopic perovskite solar cells

Influence of precursor concentration on printable mesoscopic perovskite solar cells

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Over the last decade,the power conversion efficiency of hybrid organic-inorganic perovskite solar cells (PSCs) has increased dramatically from 3.8％ to 25.2％.This rapid progress has been possible due to the accurate control of the morphology and crystallinity of solution-processed perovskites,which are significantly affected by the concentration of the precursor used.This study explores the influence of precursor concentrations on the performance of printable hole-conductor-free mesoscopic PSCs via a simple one-step drop-coating method.The results reveal that lower concentrations lead to larger grains with inferior pore filling,while higher concentrations result in smaller grains with improved pore filling.Among concentrations ranging from 0.24-1.20 M1),devices based on a moderate strength of 0.70 M were confirmed to exhibit the best efficiency at 16.32％.

printable perovskite solar cell (PSC)precursor concentrationcrystallizationmorphology

Shuangquan JIANG、Yusong SHENG、Yue HU、Yaoguang RONG、Anyi MEI、Hongwei HAN

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Michael Gr(a)tzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology, Wuhan 430074, China

authors acknowledge financial support from the National Natural Science Foundation of Chinaauthors acknowledge financial support from the National Natural Science Foundation of Chinaauthors acknowledge financial support from the National Natural Science Foundation of Chinaauthors acknowledge financial support from the National Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities,the Science and Technology Department of Hubei Province111 Projectand the Program for Huazhong University of Science and Technology (HUST) Academic Frontier Youth Team

9173330151902117217020692017AAA190B070382016QYTD06

2020

光电子前沿(英文版)

光电子前沿(英文版)

CSTPCDCSCDEI
影响因子：0.049
ISSN：2095-2759
年,卷(期)：2020.13(3)
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