Perovskite microcells fabricated using swelling-induced crack propagation for colored solar windows

Author:

Lee Woongchan,Yoo Young JinORCID,Park Jinhong,Ko Joo Hwan,Kim Yeong Jae,Yun Huiwon,Kim Dong HoeORCID,Song Young MinORCID,Kim Dae-HyeongORCID

Abstract

AbstractPerovskite microcells have a great potential to be applied to diverse types of optoelectronic devices including light-emitting diodes, photodetectors, and solar cells. Although several perovskite fabrication methods have been researched, perovskite microcells without a significant efficiency drop during the patterning and fabrication process could not be developed yet. We herein report the fabrication of high-efficiency perovskite microcells using swelling-induced crack propagation and the application of the microcells to colored solar windows. The key procedure is a swelling-induced lift-off process that leads to patterned perovskite films with high-quality interfaces. Thus, a power conversion efficiency (PCE) of 20.1 % could be achieved with the perovskite microcell, which is nearly same as the PCE of our unpatterned perovskite photovoltaic device (PV). The semi-transparent PV based on microcells exhibited a light utilization efficiency of 4.67 and a color rendering index of 97.5 %. The metal–insulator–metal structure deposited on the semi-transparent PV enabled to fabricate solar windows with vivid colors and high color purity.

Funder

Institute for basic science (Korea, Republic of), IBS-R006-A1

National Research Foundation of Korea

Ministry of Knowledge Economy | Korea Institute of Energy Technology Evaluation and Planning

Publisher

Springer Science and Business Media LLC

Subject

General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary

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