Conventional Polymer Solar Cell using Low Temperature Sol-gel ZnO Thin Film

Jun Young Kim; Kunsik An

doi:10.7836/kses.2022.42.5.037

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2022 Vol.42, Issue 5 Preview Page Next Page

Conventional Polymer Solar Cell using Low Temperature Sol-gel ZnO Thin Film 저온 졸젤 공정 ZnO 박막을 적용한 정구조 고분자 태양전지 연구

30 October 2022. pp. 37-44

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Abstract

The performance of conventional polymer solar cells with low-temperature-processed zinc oxide (ZnO) as an electron extraction layer is investigated in this study. Conventional polymer solar cells consist of molybdenum oxide (MoO₃) as a hole extraction layer, a poly (3-hexylthiopene): phenyl-C₆₀-butyric acid methyl ester (P3HT:PCBM) bulk heterojunction as a photo-active layer, and ZnO as an electron extraction layer. The ZnO layer is formed from a precursor solution on the P3HT:PCBM ﬁlm through sol–gel spin-coating and annealed at a low temperature (~150°C). We first investigated various solvents of the ZnO precursor solution to identify the best solvent for coating the ZnO layer on the P3HT:PCBM film. Using the best ZnO precursor solution, we fabricated polymer solar cells under various ZnO thicknesses and analyzed their photovoltaic performance to obtain the optimal thickness of the ZnO layer. The device with the optimal thickness of the ZnO film showed a ~10% higher short-circuit current density and power conversion efficiency than the devices without the ZnO film.

Keywords

Zinc Oxide

Polymer

Solar Cell

Sol-gel

Conventional Structure

키워드

산화아연

고분자

태양전지

졸젤

정구조

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Information

Publisher :Korean Solar Energy Society
Publisher(Ko) :한국태양에너지학회
Journal Title :Journal of the Korean Solar Energy Society
Journal Title(Ko) :한국태양에너지학회 논문집
Volume : 42
No :5
Pages :37-44
Received Date : 2022-09-04
Accepted Date : 2022-10-07
DOI :https://doi.org/10.7836/kses.2022.42.5.037

Journal of the Korean Solar Energy Society ISSN:1598-6411(Print) 2508-3562(Online) 한국태양에너지학회 논문집

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