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Shen C, Wu Y, Zhang H, et al. Semi-Locked Tetrathienylethene as a Building Block for Hole-Transporting Materials: Toward Efficient and Stable Perovskite Solar Cells. Angew Chem Int Ed Engl. 2019;58(12):3784-3789doi: 10.1002/anie.201811593.
Shen, C., Wu, Y., Zhang, H., Li, E., Zhang, W., Xu, X., Wu, W., Tian, H., & Zhu, W. H. (2019). Semi-Locked Tetrathienylethene as a Building Block for Hole-Transporting Materials: Toward Efficient and Stable Perovskite Solar Cells. Angewandte Chemie (International ed. in English), 58(12), 3784-3789. https://doi.org/10.1002/anie.201811593
Shen, Chao, et al. "Semi-Locked Tetrathienylethene as a Building Block for Hole-Transporting Materials: Toward Efficient and Stable Perovskite Solar Cells." Angewandte Chemie (International ed. in English) vol. 58,12 (2019): 3784-3789. doi: https://doi.org/10.1002/anie.201811593
Shen C, Wu Y, Zhang H, Li E, Zhang W, Xu X, Wu W, Tian H, Zhu WH. Semi-Locked Tetrathienylethene as a Building Block for Hole-Transporting Materials: Toward Efficient and Stable Perovskite Solar Cells. Angew Chem Int Ed Engl. 2019 Mar 18;58(12):3784-3789. doi: 10.1002/anie.201811593. Epub 2019 Feb 18. PMID: 30701634.
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Angew Chem Int Ed Engl. 2019 Mar 18;58(12):3784-3789. doi: 10.1002/anie.201811593. Epub 2019 Feb 18.

Semi-Locked Tetrathienylethene as a Building Block for Hole-Transporting Materials: Toward Efficient and Stable Perovskite Solar Cells.

Angewandte Chemie (International ed. in English)

Chao Shen, Yongzhen Wu, Hao Zhang, Erpeng Li, Weiwei Zhang, Xiaojia Xu, Wenjun Wu, He Tian, Wei-Hong Zhu

Affiliations

  1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Centre, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China.

PMID: 30701634 DOI: 10.1002/anie.201811593

Abstract

The construction of state-of-the-art hole-transporting materials (HTMs) is challenging regarding the appropriate molecular configuration for simultaneously achieving high morphology uniformity and charge mobility, especially because of the lack of appropriate building blocks. Herein a semi-locked tetrathienylethene (TTE) serves as a promising building block for HTMs by fine-tuning molecular planarity. Upon incorporation of four triphenylamine groups, the resulting TTE represents the first hybrid orthogonal and planar conformation, thus leading to the desirable electronic and morphological properties in perovskite solar cells (PSCs). Owing to its high hole mobility, deep lying HOMO level, and excellent thin film quality, the dopant-free TTE-based PSCs exhibit a very promising efficiency of over 20 % with long-term stability, achieving to date the best performances among dopant-free HTM-based planar n-i-p structured PSCs.

© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: conformation analysis; conjugation; materials science; solar cells; structure elucidation

Publication Types

Grant support