The Impact of Precursor Ratio on the Synthetic Production, Surface Chemistry, and Photovoltaic Performance of CsPbI3 Perovskite Quantum Dots

doi:10.1002/solr.202100090

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	The Impact of Precursor Ratio on the Synthetic Production, Surface Chemistry, and Photovoltaic Performance of CsPbI3 Perovskite Quantum Dots
	Y. Qian; Y. Shi; G. Shi; G. Shi; X. Zhang; L. Yuan; Q. Zhong; Y. Liu; Y. Wang; X. Ling; F. Li; M. Cao; S. Li; Q. Zhang; Z. Liu and W. Ma
	2021
发表期刊	Solar RRL
ISSN	2367198X
卷号	5 期号:5
摘要	Lead-halide perovskite quantum dots (QDs) have attracted substantial attention due to their great potential in solution-processed optoelectronic applications. The current synthetic method mostly relies on the binary-precursor strategy, which significantly restricts the reaction yield and elemental regulation, leading to extremely high material cost. Herein, a more versatile ternary-precursor method to investigate the effect of the precursor ratios on the synthetic production, surface chemistry, and photovoltaic performance of CsPbI3 QDs is explored. It is revealed that a decreased Pb/Cs feeding ratio can largely increase the reaction yield, whereas a reduced Pb/I ratio can improve the surface termination and optical properties of the resultaning CsPbI3 QDs. After rational tuning of the synthetic protocol, the reaction yield can be improved more than 7.5 times and the material cost can be reduced from 303 $ g1 to as low as 42 $ g1 compared to the conventional binary-precursor method. In addition, the photovoltaic device using these QDs exhibits an efficiency close to the reported state-of-the-art ones. It is believed that this scalable and low-cost preparation of CsPbI3 QDs provides new insight into the future commercialization of perovskite QDs-based optoelectronics. 2021 Wiley-VCH GmbH
DOI	10.1002/solr.202100090
URL	查看原文
收录类别	SCI ; EI
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65321
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Qian,Y. Shi,G. Shi,et al. The Impact of Precursor Ratio on the Synthetic Production, Surface Chemistry, and Photovoltaic Performance of CsPbI3 Perovskite Quantum Dots[J]. Solar RRL,2021,5(5).
APA	Y. Qian.,Y. Shi.,G. Shi.,G. Shi.,X. Zhang.,...&Z. Liu and W. Ma.(2021).The Impact of Precursor Ratio on the Synthetic Production, Surface Chemistry, and Photovoltaic Performance of CsPbI3 Perovskite Quantum Dots.Solar RRL,5(5).
MLA	Y. Qian,et al."The Impact of Precursor Ratio on the Synthetic Production, Surface Chemistry, and Photovoltaic Performance of CsPbI3 Perovskite Quantum Dots".Solar RRL 5.5(2021).

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