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Research Paper

Applied Science and Convergence Technology 2023; 32(5): 110-113

Published online September 30, 2023


Copyright © The Korean Vacuum Society.

Enhancement of Light-Harvesting Ability on Perovskite Films via Preheated Substrates

Jaewon Oh , Hyunbok Lee , and Mee-Yi Ryu*

Department of Physics, Kangwon National University, Chuncheon 24341, Republic of Korea

Correspondence to:myryu@kangwon.ac.kr

Received: July 14, 2023; Revised: August 28, 2023; Accepted: August 28, 2023

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, distribution and reproduction in any medium without alteration, provided that the original work is properly cited.


The fabrication of perovskite solar cells (PSCs) under ambient conditions is a major challenge for their commercialization. We evaluated the optical and device properties of the perovskite films in an uncontrolled environment through substrate preheating. The preheated substrate rapidly reached the turbid point and reduced the effect of relative humidity. An early antisolvent application time point with a preheated substrate increased the thickness of the perovskite film and improved its optical properties. However, the device characteristics were limited owing to the increased recombination with increasing thickness. Our results can guide the fabrication of high-quality, durable PSCs under various ambient conditions.

Keywords: Perovskite, Preheating, Photovoltaic, Light-harvesting

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