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Author

Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

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High-Temperature-Short-Time Annealing Process for High-Performance Large-Area Perovskite Solar Cells

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Title
High-Temperature-Short-Time Annealing Process for High-Performance Large-Area Perovskite Solar Cells
Author
Kim, MinjinKim, Gi-HwanOh, Kyoung SukJo, YimhyunYoon, HyunKim, Ka-HyunLee, HeonKim, Jin YoungKim, Dong Suk
Keywords
high performance;  high-temperature annealing process;  large-area perovskite solar cells;  planar structure
Issue Date
201706
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.11, no.6, pp.6057 - 6064
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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DOI
http://dx.doi.org/10.1021/acsnano.7b02015
ISSN
1936-0851
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