Charge-Phonon Coupling in Tin Halide Perovskites.

• Tác giả: Eugenio Cinquanta, Filippo De Angelis, Giulia Folpini, Lorenzo Gatto, Federico Grandi, Daniele Meggiolaro, Annamaria Petrozza, Isabella Poli, Antonella Treglia, Caterina Vozzi
• Ngôn ngữ: eng
• Ký hiệu phân loại: 785.13 *Trios
• Thông tin xuất bản: United States : ACS energy letters , 2025
• Bộ sưu tập: NCBI
• ID: 724883

Tóm tắt

Tin halide perovskites are promising materials to replace lead-based materials for perovskite optoelectronics, yet their performance is limited by their high self-p-doping. To quantify the impact of p-doping on carrier dynamics, we combine terahertz spectroscopy and density functional theory calculations to investigate the coupling of charge carriers to the lattice in prototypical tin-based perovskites. Doping is shown to influence the charge-phonon interactions significantly. We identify the formation of polarons at doping densities below 10