Theory of piezotronic and piezo-phototronic effects on high performance perovskite solar cells

被引：0
作者：
Nie, Jiaheng [1 ]
Zhang, Yaming [2 ]
Wang, Jizheng [3 ]
Li, Lijie [4 ]
Zhang, Yan [2 ]
机构：
[1] Chengdu Univ Informat Technol, Sch Cybersecur, Chengdu 610225, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Phys, Chengdu 610054, Peoples R China
[3] Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China
[4] Swansea Univ, Coll Engn, Swansea SA1 8EN, Wales
来源：
NANO ENERGY | 2024年 / 130卷
基金：
国家自然科学基金重大项目; 中国国家自然科学基金;
关键词：
Piezo-phototronics; Piezotronics; Perovskite solar cell; Polarization; Surface potential; EFFICIENT; RECOMBINATION; FUNDAMENTALS; PROSPECTS;
D O I：
10.1016/j.nanoen.2024.110106
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Piezotronic and piezo-phototronic effects can effectively modulate the Schottky barrier height (SBH) of the metal-semiconductor contact and the built-in electric field. Most models focus on the built-in electric field of perovskite solar cells, and polarization-modulated SBH is missing. We investigated piezotronic and piezophototronic effects on the Schottky barrier and built-in electric field of perovskite solar cells. A model of the surface potential induced by polarization was developed. The analytical and numerical results are calculated for perovskite solar cells. We found that the piezo-phototronic effect can significantly increase the performance of perovskite solar cells by reducing the height of the Schottky barrier. This model not only provides a fundamental physical picture of the piezotronic and piezo-phototronic effect on perovskite solar cells, but also paves a new path to develop high-efficiency perovskite solar cells.
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页数：9
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