Zinc complex-based hole transporting material for perovskite solar cell applications

Yogesh S. Tingare, Ya Chun Hsu, Jyun Dai Lin, Chaochin Su, Wan Chun Wang, Sheng Han Wang, Shi Yun Lai, Zhi Ting Wu, Ja Hon Lin, Hsiou Hsuan Wang, Wen Ren Li

Research output: Contribution to journalArticlepeer-review

Abstract

Developing hole-transport materials (HTMs) with high hole mobility is critical for constructing efficient perovskite solar cells (PSCs). We present a design strategy for improving hole mobility and PSC performance using a stable zinc complex-based HTM BPZ23. Compared to its non-metal counterpart (BP21), the BPZ23 demonstrated a 59.42% increase in hole mobility, resulting in a good perovskite layer with reduced trap-assisted recombination. As a result, the power conversion efficiency of the fabricated inverted PSC using BPZ23 is up to 19.75%, which is one of the highest reported for any transition metal complex-based HTM employed in inverted PSC. This research demonstrates a simple and efficient method for increasing hole mobility in HTMs and improving the photovoltaic performance of PSCs.

Original languageEnglish
Pages (from-to)10145-10151
Number of pages7
JournalJournal of Materials Chemistry C
Volume12
Issue number27
DOIs
StatePublished - 14 May 2024

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