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

Citation data:

ACS nano, ISSN: 1936-086X, Vol: 11, Issue: 6, Page: 6057-6064

Publication Year:
2017
Usage 11
Clicks 6
Abstract Views 3
Link-outs 2
Captures 79
Readers 79
Social Media 2
Shares, Likes & Comments 2
Citations 22
Citation Indexes 22
Repository URL:
http://pubs.acs.org/doi/abs/10.1021/acsnano.7b02015
PMID:
28505416
DOI:
10.1021/acsnano.7b02015
Author(s):
Kim, Minjin; Kim, Gi-Hwan; Oh, Kyoung Suk; Jo, Yimhyun; Yoon, Hyun; Kim, Ka-Hyun; Lee, Heon; Kim, Jin Young; Kim, Dong Suk
Publisher(s):
American Chemical Society (ACS)
Tags:
Materials Science; Engineering; Physics and Astronomy; high performance; high-temperature annealing process; large-area perovskite solar cells; planar structure
article description
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 °C for 4 s, the perovskite film with an average domain size of 1 μm 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 active area and 18% over a 1 cm 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.