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Electronic and optical properties of SnO2(110)/MAPbI3(100) interface by first-principles calculations
被引:6
|作者:
Wang, Lifu
[1
]
Si, Fengjuan
[1
]
Tang, Fuling
[1
,2
]
Xue, Hongtao
[1
,2
]
机构:
[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
[2] Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
基金:
中国国家自然科学基金;
国家重点研发计划;
关键词:
first-principles calculations;
interface states;
SnO2(110)/MAPbI(3)(100) interface;
electronic properties;
PEROVSKITE SOLAR-CELLS;
SOLUTION-PROCESSED SNO2;
TOTAL-ENERGY CALCULATIONS;
EFFICIENT;
TEMPERATURE;
NANOCRYSTALS;
LAYER;
PERFORMANCE;
D O I:
10.1088/2053-1591/aaf2af
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
The interface structure, bonding energy, electronic properties and optical absorption properties of SnO2(110)/MAPbI(3)(100) interface were explored using the first-principles calculations. The lattice mismatch between SnO2(110) and MAPbI(3)(100) is 5.8%, and the interface structures were investigated in consideration of two different terminations with bonding energy about -0.79 J m(-2) and -0.70 J m(-2), respectively. Meanwhile, we found some interface states nearby the SnO2 (110)/MAPbI(3)(100) interface. These interface states mainly come from 6s, 6p orbitals of Pb, 5p orbital of I and 2p orbital of O, which present on the first interface layers of MAPbI(3) and SnO2.
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页数:7
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