Sulfur-Rich Hole-Transporting Materials for Inverted Perovskite Solar Cells
We introduce an electron-rich hole-transporting material (HTM), <b>WZ103</b>, based on a sulfur-rich terthiophene core. This HTM features two triphenylamine donor groups at the 4,4″ positions and four additional triphenylamine groups at the 5,5″ positions connected by vinylene linkages. Its good hole-transporting properties, reduced series resistance, and effective defect passivation contribute to the improved performance. With a remarkable power conversion efficiency of 19.48%, this HTM ranks among the top nonfused terthiophene-based, dopant-free HTMs.
Authors
- Won-Ru Lin
- Yogesh S. Tingare (ORCID: https://orcid.org/0000-0003-1899-8369)
- Chih-Ta Yen (ORCID: https://orcid.org/0000-0003-0831-6774)
- Meijie Chen (ORCID: https://orcid.org/0000-0001-5742-4160)
- Sheng‐Hung Teng
- Wen‐Ren Li (ORCID: https://orcid.org/0000-0001-9230-4957)
- Chia-Jung Chu
- Chaochin Su (ORCID: https://orcid.org/0000-0002-5423-9485)
- Li Liu (ORCID: https://orcid.org/0000-0002-2178-9237)
- Weihong Chen (ORCID: https://orcid.org/0009-0004-0292-3447)
Institutions
- National Taipei University of Technology (TW)
- National Central University (TW)
Publication Details
- Journal
- Organic Letters
- Published
- 2025-06-19
- DOI
- https://doi.org/10.1021/acs.orglett.5c01859
- Citations
- 1
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- Ministry of Science and Technology, Taiwan