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Visualization of Hot Carrier Dynamics in a Single CsPbBr 3 Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy.
- Source :
- Nanomaterials (2079-4991); Oct2023, Vol. 13 Issue 19, p2701, 10p
- Publication Year :
- 2023
-
Abstract
- Lead halide perovskites (LHPs) have excellent semiconductor properties. They have been used in many applications such as solar cells. Recently, the hot carrier dynamics in this type of material have received much attention as they are useful for enhancing the performance of optoelectrical devices fabricated from it. Here, we study the ultrafast hot carrier dynamics of a single CsPbBr<subscript>3</subscript> microplate using femtosecond Kerr-gated wide-field fluorescence spectroscopy. The transient photoluminescence spectra have been measured under a variety of excitation fluences. The temporal evolution of bandgap renormalization and the competition between hot carrier cooling and the recovery of the renormalized bandgap are clearly revealed. [ABSTRACT FROM AUTHOR]
- Subjects :
- HOT carriers
DATA visualization
PEROVSKITE
LEAD halides
SOLAR cells
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Volume :
- 13
- Issue :
- 19
- Database :
- Complementary Index
- Journal :
- Nanomaterials (2079-4991)
- Publication Type :
- Academic Journal
- Accession number :
- 172985503
- Full Text :
- https://doi.org/10.3390/nano13192701