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Hole-Transporting Materials with a Two-Dimensionally Expanded π-System around an Azulene Core for Efficient Perovskite Solar Cells
Abstract
Two-dimensionally expanded π-systems, consisting of partially oxygen-bridged triarylamine skeletons that are connected to an azulene (1-3) or biphenyl core (4), were synthesized and characterized. When tetra-substituted azulene 1 was used as a hole-transporting material (HTM) in perovskite solar cells, the observed performance (power conversion efficiency = 16.5%) was found to be superior to that of the current HTM standard Spiro-OMeTAD. A comparison of the hole mobility, the ability to control the HOMO and LUMO levels, and the hole-collection efficiency at the perovskite/HTM interface in 1 with reference compounds (2-4 and Spiro-OMeTAD) led to the elucidation of key factors required for HTMs to act efficiently in perovskite solar cells.
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Cites
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Cited by
Hirai, M., Tanaka, N., Sakai, M., & Yamaguchi, S. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00637 · Cited by 730
Recent advances in perovskite solar cells: efficiency, stability and lead-free perovskite
Yang, S., Fu, W., Zhang, Z., Chen, H., & Li, C.-Z. (2017) · Journal of Materials Chemistry A · doi:10.1039/c7ta00366h · Cited by 486
Metadata
- Authors
- Nishimura, H., Ishida, N., Shimazaki, A., Wakamiya, A., Saeki, A., Scott, L. T., & Murata, Y.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-12-10
- Volume
- 137
- Issue
- 50
- Pages
- 15656-15659
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2232756424
- Cited by
- 313
- References
- 25
- FWCI
- 21.81
- Type
- journal article
- Language
- en
- Open access
- closed
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- Nishimura, H., Ishida, N., Shimazaki, A., Wakamiya, A., Saeki, A., Scott, L. T., & Murata, Y. (2015). Hole-Transporting Materials with a Two-Dimensionally Expanded π-System around an Azulene Core for Efficient Perovskite Solar Cells. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.5b11008
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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