Influence of Solvent on Stability and Electrophysical Properties of Organic-Inorganic Perovskites Films CH3NH3PbI3

被引：3
|
作者：
Torchyniuk, P. V. [1 ]
V'yunov, O. I. [1 ]
Kovalenko, L. L. [1 ]
Ishchenko, A. A. [2 ]
Kurdyukova, I. V. [2 ]
Belous, A. G. [1 ]
机构：
[1] NAS Ukraine, VI Vernadsky Inst Gen & Inorgan Chem, Kiev, Ukraine
[2] NAS Ukraine, Inst Organ Chem, Kiev, Ukraine
来源：
THEORETICAL AND EXPERIMENTAL CHEMISTRY | 2021年 / 57卷 / 02期
关键词：
organic-inorganic perovskite; microstructure; complex impedance; I-V curves; stability; SOLAR-CELLS; MORPHOLOGY; EFFICIENCY; CATIONS; HYBRID;
D O I：
10.1007/s11237-021-09679-1
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The influence of DMF and DMSO solvents on the properties of organic-inorganic perovskite films obtained at the ratio of starting reagents PbI2:CH3NH3I = 1:2 was studied. It was found that a dense film is formed from solutions in DMSO. XRD and fluorescence spectroscopy have shown that the use of DMSO promotes the formation of perovskite films that are less sensitive to moisture and irradiation. It is shown that the mobility of charge carriers in perovskite films obtained from DMSO (mu = 67 +/- 5 cm(2)/V center dot s) is an order of magnitude higher than for the films obtained from DMF (mu = 9.1 +/- 0.7 cm(2)/V center dot s). The density of charge carriers is n = (3.8 +/- 0.3)center dot 10(19) cm(-3) and n = (2.9 +/- 0.2)center dot 10(19) cm(-3) when using DMF and DMSO solvents, respectively. The formed organic-inorganic perovskite films with DMSO were found to have higher conductivity than films obtained from DMF.
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收藏
页码：113 / 120
页数：8
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