Improved electronic transport properties of tin-halide perovskites

被引：15
|
作者：
Berdiyorov, G. R. [1 ]
Madjet, M. E. [1 ]
El-Mellouhi, F. [1 ]
机构：
[1] Hamad bin Khalifa Univ, Qatar Environm & Energy Res Inst, Qatar Fdn, Doha, Qatar
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2017年 / 170卷
关键词：
Hybrid perovskite; Electronic transport; Green's functions; Density functional theory; HIGH-PERFORMANCE; SOLAR-CELLS; OPTICAL-PROPERTIES; CHARGE SEPARATION; ORGANIC CATIONS; PB; SUBSTITUTION; ABSORPTION; EFFICIENCY; DYNAMICS;
D O I：
10.1016/j.solmat.2017.05.045
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Density functional theory in combination with the nonequilibrium Green's function formalism is used to study the electronic transport properties of MAPbI(3), MASnI(3) and mixed-MAPb(0.5)Sn(0.5)I(3) perovskites (MA-methylammonium). The largest electronic transport is obtained for tin-halide sample due to the delocalization of electronic states in the system. The mixed sample also shows improved transport properties as compared to the lead-halide system. In addition, tin-based perovskites are less sensitive to the spin-orbit interactions, whereas the electronic transport properties of MAPbI(3) are strongly affected by the relativistic effects. These findings indicate the possibility of enhancing charge carrier transport in organometallic perovskites by metal atom mixing.
引用
收藏
页码：8 / 12
页数：5
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