Development of Dopant-Free N,N'-Bicarbazole-Based Hole Transport Materials for Efficient Perovskite Solar Cells.

ABSTRACT: Efficient and stable hole-transport material (HTM) is essential for enhancing the efficiency and stability of high-efficiency perovskite solar cells (PSCs). The commonly used HTMs such as spiro-OMeTAD need dopants to produce high efficiency, but those dopants degrade the perovskite film and cause instability. Therefore, the development of dopant-free N,N'-bicarbazole-based HTM is receiving huge attention for preparing stable, cost-effective, and efficient PSCs. Herein, we designed and proposed seven distinct small-molecule-based HTMs (B1-B7), which are synthesized and do not require dopants to fabricate efficient PSCs. To design this new series, we performed synergistic side-chain engineering on the synthetic reference molecule (B) by replacing two methylthio (-SCH3) terminal groups with a

SUBMITTER: Adnan M 

PROVIDER: S-EPMC11642623 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature