Moth-Eye TiO2 Layer for Improving Light Harvesting Efficiency in Perovskite Solar Cells

Seong Min Kang; Segeun Jang; Jong-Kwon Lee; Jungjin Yoon; Dong-Eun Yoo; Jin-Wook Lee; Mansoo Choi; Nam-Gyu Park

doi:10.1002/smll.201600428

Moth-Eye TiO2 Layer for Improving Light Harvesting Efficiency in Perovskite Solar Cells

Small. 2016 May;12(18):2443-9. doi: 10.1002/smll.201600428. Epub 2016 Mar 17.

Authors

Seong Min Kang^{1

2}, Segeun Jang², Jong-Kwon Lee¹, Jungjin Yoon², Dong-Eun Yoo³, Jin-Wook Lee⁴, Mansoo Choi^{1

2}, Nam-Gyu Park⁴

Affiliations

¹ Global Frontier Center for Multiscale Energy System, Seoul National University, Seoul, 151-744, Korea.
² Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-744, Korea.
³ Department Process of NT, National Nanofab Center, Daejeon, 34141, Korea.
⁴ School of Chemical Engineering and Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Korea.

PMID: 26990492
DOI: 10.1002/smll.201600428

Abstract

A moth-eye nanostructured mp-TiO2 film using conventional lithography, nano-imprinting and polydimethyl-siloxane (PDMS) stamping methods is demonstrated for the first time. Power conversion efficiency of the moth-eye patterned perovskite solar cell is improved by ≈11%, which mainly results from increasing light harvesting efficiency by structural optical property.

Keywords: anti-reflection; light harvesting; moth-eye structures; nano-imprinting lithography; perovskite solar cells.

Publication types

Research Support, Non-U.S. Gov't