Temperature Dependent Characteristics of Perovskite Solar Cells

被引：26

作者：

Wang, Mingkui ^{[1
]}

Yim, Wai-Leung ^{[2
]}

Liao, Peizhe ^{[1
]}

Shen, Yan ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Luoyu Rd 1037, Wuhan 430074, Peoples R China

[2] Agcy Sci Technol & Res, Inst High Performance Comp, 1 Fusionopolis Way,16-16 Connexis, Singapore 138632, Singapore

来源：

CHEMISTRYSELECT | 2017年 / 2卷 / 16期

关键词：

charge transfer; impedance spectroscopy; ionic relaxation; perovskite; solar cell; ORGANOMETAL HALIDE PEROVSKITES; ELECTRON-TRANSPORT LAYER; LEAD IODIDE; NICKEL-OXIDE; NIO; DERIVATIVES; EXTRACTION; DEPOSITION; EFFICIENCY; STABILITY;

D O I：

10.1002/slct.201700776

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work we report the characterization of perovskite solar cells with mesoscopic TiO2/Al2O3/NiO/carbon architecture by analyzing the dependence of photovoltaic parameters on temperature and illumination intensity. This perovskite device shows impressive power conversion efficiency at room temperature (>14%) and at low temperature of 80K (>5%). This enables unequivocal identification of the contribution of CH3NH3PbI3 to construction of the built-in electric field, and thus, the temperature dependent photovoltaic parameters. The typical feature of this type solar cell is that open-circuit voltage follows behaviour of the dielectric constant of CH3NH3PbI3. In addition, the dependence of current on light intensity shifts from the space-charge-limited to diffusion-limited mechanisms as increasing temperature. By using the observed significant short-circuit current density of 12.76mA cm(-2) at 80K the exciton-binding energy of CH3NH3PbI3 is evaluated to be less 6.9 meV in an operating device, which can be further verified with Elliott's formula.

引用

页码：4469 / 4477

页数：9

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