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Hot Carrier Cooling and Recombination Dynamics of Chlorine-Doped Hybrid Perovskite Single Crystals.
Mix, L Tyler; Ghosh, Dibyajyoti; Tisdale, Jeremy; Lee, Min-Cheol; O'Neal, Kenneth R; Sirica, Nicholas; Neukirch, Amanda J; Nie, Wanyi; Taylor, Antoinette J; Prasankumar, Rohit P; Tretiak, Sergei; Yarotski, Dmitry A.
Afiliação
  • Mix LT; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Ghosh D; Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Tisdale J; Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Lee MC; Material Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • O'Neal KR; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Sirica N; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Neukirch AJ; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Nie W; Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Taylor AJ; Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Prasankumar RP; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Tretiak S; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
  • Yarotski DA; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
J Phys Chem Lett ; 11(19): 8430-8436, 2020 Oct 01.
Article em En | MEDLINE | ID: mdl-32902990
ABSTRACT
Controlling the photoexcited properties and behavior of hybrid perovskites by halide doping has the potential to impact a wide range of emerging technologies, including solar cells and radiation detectors. Crystalline samples of methylammonium lead bromide substituted with chlorine (MAPbBr3-xClx) were examined by transient reflectivity spectroscopy and nonadiabatic molecular dynamics simulations. At picosecond time scales, the addition of chlorine to the perovskite crystal increased the observed rate of hot carrier cooling and the calculated electron-phonon coupling constants. Chlorine-doped samples also exhibit a slower surface recombination velocity and a smaller ambipolar mobility.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Estados Unidos