Tuning Bandgap of Mixed-Halide Perovskite for Improved Photovoltaic Performance Under Monochromatic-Light Illumination

被引：8

作者：

Zhang, Xu ^{[1
]}

Liu, Jiang ^{[1
]}

Song, Zhen ^{[1
]}

Zuo, Wentao ^{[1
]}

Fan, Zhengfang ^{[1
]}

He, Xulin ^{[1
]}

Luo, Kun ^{[1
]}

Ye, Qinyan ^{[1
]}

Liao, Cheng ^{[1
]}

机构：

[1] China Acad Engn Phys, Chengdu Green Energy & Green Mfg Technol R&D Ctr, Chengdu Dev Ctr Sci & Technol, Chengdu 610200, Sichuan, Peoples R China

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2019年 / 216卷 / 04期

基金：

中国国家自然科学基金;

关键词：

bandgap tuning; hybrid mixed-halide perovskites; monochromatic-light; photovoltaic performance; EFFICIENT; FORMAMIDINIUM; CONVERTERS; STABILITY; TRIHALIDE; POWER;

D O I：

10.1002/pssa.201800727

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Organic-inorganic halide perovskites have emerged as promising materials for optoelectronic devices. This paper focuses on a new application field for perovskite materials as monochromatic-light conversion devices. First the optical properties of organic-inorganic perovskite semiconductors with bandgaps varying from near-infrared to visible at room temperature are presented. Two types of hybrid organic-inorganic mixed-halide perovskites, (FAPbI(3))(x)(MAPbBr(3))(1-x) and FA(0.85)MA(0.15)Pb(IxBr1-x)(3), are adopted for bandgap tuning, an approximate linear variation of bandgaps with the x value is obtained. The relationship between thin film composition and device performance are investigated. Based on the results of the above bandgap tuning, two kinds of devices with bandgap near the wavelength of 683 nm are characterized under monochromatic-light illumination. A conversion efficiency of up to 40% under 60 mW cm(-2) monochromatic-light illumination is achieved. The results confirm that the perovskite films exhibit sharp optical absorption edge, enabling highly efficient monochromatic-light conversion device.

引用

页数：8

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