研究目的
Investigating the effects of fluorine substituted benzotriazole (BTA) core building block based hole transporting materials (HTMs) on the performance of mesoporous perovskite solar cells (PSCs).
研究成果
The study successfully demonstrates that fluorine substituted BTA core building block based HTMs can achieve high PCEs in PSCs, with 2FBTA-2 showing superior performance due to its suitable energy level, planar molecular configuration, and high hole mobility. The results highlight the potential of BTA as a promising building block for future HTM design in PSCs.
研究不足
The study focuses on the design and synthesis of two specific HTMs and their application in PSCs, without extensive exploration of other potential core building blocks or extensive stability testing under various environmental conditions.
1：Experimental Design and Method Selection:
Designed and synthesized two novel D-A-D structured HTMs based on fluorine substituted BTA core building block through molecular regulation.
2：Sample Selection and Data Sources:
Applied these HTMs into PSCs to evaluate their photovoltaic performance.
3：List of Experimental Equipment and Materials:
Used tetrahydrofuran (THF) for UV-vis absorption spectra, cyclic voltammetry (CV) for HOMO estimation, and space charge limited current (SCLC) method for hole mobility evaluation.
4：Experimental Procedures and Operational Workflow:
Characterized the optical and electrochemical properties of the HTMs, performed steady-state and time-resolved photoluminescence (PL) decay measurements, and evaluated the photovoltaic performance of PSCs.
5：Data Analysis Methods:
Analyzed the data using statistical techniques and software tools to determine the PCEs, Voc, Jsc, and FF of the PSCs.
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