Hot Carrier Cooling and Recombination Dynamics of Chlorine-Doped Hybrid Perovskite Single Crystals

L. Tyler Mix, Dibyajyoti Ghosh, Jeremy Tisdale, Min Cheol Lee, Kenneth R. O'Neal, Nicholas Sirica, Amanda J. Neukirch, Wanyi Nie, Antoinette J. Taylor, Rohit P. Prasankumar, Sergei Tretiak, Dmitry A. Yarotski

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)8430-8436
Number of pages7
JournalThe journal of physical chemistry letters
Volume11
Issue number19
DOIs
Publication statusPublished - 1 Oct 2020
Externally publishedYes

Fingerprint

Dive into the research topics of 'Hot Carrier Cooling and Recombination Dynamics of Chlorine-Doped Hybrid Perovskite Single Crystals'. Together they form a unique fingerprint.

Cite this