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Ultrafast Carrier Drift Transport Dynamics in CsPbI3 Perovskite Nanocrystalline Thin Films.
Kobbekaduwa, Kanishka; Liu, Exian; Zhao, Qian; Bains, Jasjit Singh; Zhang, Jianbing; Shi, Ying; Zheng, Haimei; Li, Dawen; Cai, Tong; Chen, Ou; Rao, Apparao M; Beard, Matthew C; Luther, Joseph M; Gao, Jianbo.
Afiliación
  • Kobbekaduwa K; Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
  • Liu E; Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
  • Zhao Q; Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.
  • Bains JS; School of Materials Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China.
  • Zhang J; Department of Chemistry, Yousef Haj-Ahmad Department of Engineering, Brock University, 1812 Sir Isaac Way, St Catharines, Ontario L2S 3A1, Canada.
  • Shi Y; School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
  • Zheng H; Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, People's Republic of China.
  • Li D; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.
  • Cai T; Department of Electrical and Computer Engineering, Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, Alabama 35487, United States.
  • Chen O; Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States.
  • Rao AM; Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States.
  • Beard MC; Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
  • Luther JM; Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.
  • Gao J; Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.
ACS Nano ; 17(14): 13997-14004, 2023 Jul 25.
Article en En | MEDLINE | ID: mdl-37450660
We study the early time carrier drift dynamics in CsPbI3 nanocrystal thin films with a sub 25 ps time resolution. Prior to trapping, carriers exhibit band-like transport characteristics, which is similar to those of traditional semiconductor solar absorbers including Si and GaAs due to optical phonon and carrier scattering at high temperatures. In contrast to the popular polaron scattering mechanism, the CsPbI3 nanocrystal thin film demonstrates the strongest optical phonon scattering mechanism among other inorganic-organic hybrid perovskites, Si, and GaAs. This ultrafast dynamics study establishes a foundation for understanding the fundamental carrier drift properties that drive perovskite nanocrystal optoelectronics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos