Novel Dopant-Free Carbazole and Phenothiazine-Appended Indolo 3,2-acarbazole-Based Small Molecules as Efficient Hole-Transport Materials for Perovskite Solar Cell

Key Points

• To develop efficient and stable dopant-free hole-transport materials for perovskite solar cells.
• Introduced new indolo[3,2-a]carbazole-based HTMs
• Evaluated their performance in PSCs
• Analyzed stability and efficiency metrics
• Demonstrated improved efficiency in solar cells using new HTMs
• Showed enhanced stability compared to traditional doped materials