A Strategy to Design a Donor-pi-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell
SCIE
SCOPUS
- Title
- A Strategy to Design a Donor-pi-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell
- Authors
- Kim, GW; Kim, J; Lee, GY; Kang, G; Lee, J; Park, T
- Date Issued
- 2015-07-22
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- A strategy for developing a novel donor--acceptor conducting polymeric hole transport material (TTB-TTQ) based on thiophene and benzothiadiazole as an alternative to spiro-MeOTAD is reported. The resulting polymer is highly soluble in many organic solvents and exhibits excellent film formability. The addition of lithium bis(trifluoromethanesulfonyl) imide salt and tert-butylpyridine to TTB-TTQ results in a rough film surface with a fibril structure and improved charge transport. A perovskite solar cell with the highest power conversion efficiency () yet achieved in such cells, 14.1%, which is 22.6% greater than that of a device employing a spiro-MeOTAD is demonstrated. This strategy provides a novel approach to developing solar cell materials for efficient perovskite solar cells.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35271
- DOI
- 10.1002/AENM.201500471
- ISSN
- 1614-6832
- Article Type
- Article
- Citation
- ADVANCED ENERGY MATERIALS, vol. 5, no. 14, page. 1500471 - 1500478, 2015-07-22
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