Lateral-Structure Single-Crystal Hybrid Perovskite Solar Cells via Piezoelectric Poling

Qingfeng Dong; Jingfeng Song; Yanjun Fang; Yuchuan Shao; Stephen Ducharme; Jinsong Huang

doi:10.1002/adma.201505244

Lateral-Structure Single-Crystal Hybrid Perovskite Solar Cells via Piezoelectric Poling

Adv Mater. 2016 Apr 13;28(14):2816-21. doi: 10.1002/adma.201505244. Epub 2016 Feb 2.

Authors

Qingfeng Dong^{1

2}, Jingfeng Song^{2

3}, Yanjun Fang^{1

2}, Yuchuan Shao^{1

2}, Stephen Ducharme^{2

3}, Jinsong Huang²

Affiliations

¹ Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588-0656, USA.
² Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588-0299, USA.
³ Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588-0299, USA.

PMID: 26836224
DOI: 10.1002/adma.201505244

Abstract

Single-crystal perovskite solar cells with a lateral structure yield an efficiency enhancement 44-fold that of polycrystalline thin films, due to the much longer carrier diffusion length. A piezoelectric effect observed in perovskite single-crystal and the strain-generated grain-boundaries enable ion migration to form a p-i-n structure.

Keywords: lateral-structure solar cells; perovskite single crystals; perovskite solar cells; piezoelectric; single crystal solar cells.