Improvement on Encapsulation Properties of Solar Cells Via Low-Temperature Atomic Layer Deposition

Ho Jae Ki; Yong Tae Kim; Sang Won Lee; Jaeyeong Heo

doi:10.3740/MRSK.2024.34.10.491

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2024 Vol.34, Issue 10 Preview Page Next Page

Research Paper

Improvement on Encapsulation Properties of Solar Cells Via Low-Temperature Atomic Layer Deposition 저온 원자층 증착 공정을 통한 태양전지 봉지층 특성 향상

27 October 2024. pp. 491-496

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Abstract

Perovskite-based solar cells have recently exhibited rapid improvement in power conversion efficiency due to their high optical and electrical properties. However, perovskite materials are fundamentally degraded by heat and moisture, making long-term stability a critical issue. One way to improve the stability of perovskite solar cells is to encapsulate them. However, a low temperature encapsulation process of less than 100 °C is needed to minimize degrading the perovskite materials. High moisture barrier properties are also required. To realize a high performance encapsulation layer at low temperature we employed atomic layer deposition (ALD) technique. As the encapsulation layer materials, Al₂O₃, which is most commonly used due to its high density and optical properties, and SnO₂, which is mainly used as an electron transport layer in perovskite solar cells, were selected. Single film and multi-layer structured films of Al₂O₃ and SnO₂ were deposited, and the structural, optical, and moisture permeability properties were investigated.

Keywords

perovskite solar cell

stability

encapsulation

atomic layer deposition

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 34
No :10
Pages :491-496
Received Date : 2024-07-22
Revised Date : 2024-09-21
Accepted Date : 2024-09-22
DOI :https://doi.org/10.3740/MRSK.2024.34.10.491

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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