研究目的
Investigating the optoelectronic properties of triphenylamine dibenzofulvene–based hole transporting materials (HTMs) and their use in p‐i‐n perovskite solar cells (PSCs) to improve power conversion efficiencies (PCEs) and stability.
研究成果
The study demonstrates that triphenylamine dibenzofulvene–based HTMs, particularly YC‐1, can significantly improve the PCE and stability of p‐i‐n PSCs. The use of YC‐1 as an interfacial modified layer in NiOx‐derived PSCs led to a champion PCE of 19.37% with negligible hysteresis and excellent stability over 1000 hours. This approach offers a promising direction for the development of high‐performance and stable PSCs.
研究不足
The study focuses on the synthesis and application of specific HTMs in p‐i‐n PSCs, with limited exploration of other HTM structures or PSC architectures. The long‐term stability under operational conditions beyond 1000 hours was not fully explored.
1：Experimental Design and Method Selection:
The study involved the synthesis of triphenylamine dibenzofulvene–based HTMs with different numbers of MeO groups and their application in p‐i‐n PSCs. The optoelectronic properties of these HTMs were investigated to assess their performance in PSCs.
2：Sample Selection and Data Sources:
The samples included HTMs YC‐1 to YC‐3, with PEDOT:PSS and NiOx as reference materials. Data were collected from UV‐Vis absorption spectra, cyclic voltammetry, AFM, SEM, PL, TRPL, XRD, and device performance measurements.
3：List of Experimental Equipment and Materials:
Instruments used include UV‐Vis spectrophotometer, cyclic voltammeter, AFM, SEM, PL spectrometer, TRPL spectrometer, XRD, and solar simulator. Materials include fluorene, diphenylamine, bromine, and other chemical reagents for HTM synthesis.
4：Experimental Procedures and Operational Workflow:
The HTMs were synthesized, characterized, and applied in PSCs. The devices were fabricated and their performance was evaluated under AM
5：5G irradiation. Data Analysis Methods:
The performance of PSCs was analyzed based on J‐V curves, EQE spectra, EIS measurements, and stability tests.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
