High-Temperature-Short-Time Annealing Process for High-Performance Large-Area Perovskite Solar Cells
- Authors
- Kim, Minjin; Kim, Gi-Hwan; Oh, Kyoung Suk; Jo, Yimhyun; Yoon, Hyun; Kim, Ka-Hyun; Lee, Heon; Kim, Jin Young; Kim, Dong Suk
- Issue Date
- 6월-2017
- Publisher
- AMER CHEMICAL SOC
- Keywords
- large-area perovskite solar cells; high-temperature annealing process; planar structure; high performance
- Citation
- ACS NANO, v.11, no.6, pp.6057 - 6064
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS NANO
- Volume
- 11
- Number
- 6
- Start Page
- 6057
- End Page
- 6064
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/83275
- DOI
- 10.1021/acsnano.7b02015
- ISSN
- 1936-0851
- Abstract
- Organic inorganic hybrid metal halide perovskite solar cells (PSCs) are attracting tremendous research interest due to their high solar-to-electric power conversion efficiency with a high possibility of cost-effective fabrication and certified power conversion efficiency now exceeding 22%. Although many effective methods for their application have been developed over the past decade, their practical transition to large-size devices has been restricted by difficulties in achieving high performance. Here we report on the development of a simple and cost-effective production method with high-temperature and short-time annealing processing to obtain uniform, smooth, and large size grain domains of perovskite films over large areas. With high-temperature short-time annealing at 400 degrees C for 4 s, the perovskite film with an average domain size of 1 pm was obtained, which resulted in fast solvent evaporation. Solar cells fabricated using this processing technique had a maximum power conversion efficiency exceeding 20% over a 0.1 cm(2) active area and 18% over a 1 cm(2) active area. We believe our approach will enable the realization of highly efficient large-area PCSs for practical development with a very simple and short-time procedure. This simple method should lead the field toward the fabrication of uniform large-scale perovskite films, which are necessary for the production of high-efficiency solar cells that may also be applicable to several other material systems for more widespread practical deployment.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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