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Updated: Aug 6, 2026
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Reducing the Vibration of Carbazole-Based Self-Assembled Monolayers for High-Performance Inverted Perovskite Solar
Desheng Li1, Kai Chen1, Shaojian Li1
1State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.
Abstract:
Carbazole-based self-assembled small molecules are promising and commonly used hole transport layers (HTLs) materials for inverted perovskite solar cells (IPSCs). Here, a novel perdeuterated carbazole-based SAM named 4PACzd8 is obtained. Owing to the deuteration strategy, which causes a reduction in molecular vibration frequency, 4PACzd8 modulates the perovskite crystallization atop and suppresses interfacial non-radiative recombination. Furthermore, it is noteworthy that 4PACzd8 demonstrates heightened UV absorption properties, thereby offering enhanced protection to the underlying perovskite film from degradation resulting from UV exposure. Compared with the non-deuterated analog 4PACz, the champion device employing 4PACzd8 showed a higher power conversion efficiency (PCE) of 24.87% and excellent stability. The impressive PCE of 24.87% is by far one of the highest values for IPSCs with simple carbazole-based SAMs as HTLs.
