Nonlinear Absorption and Low-Threshold Multiphoton Pumped Stimulated Emission from All-Inorganic Perovskite Nanocrystals
Nanyang Technological University · Nanjing University of Aeronautics and Astronautics · +1 more institution
Abstract
Halide perovskite materials have attracted intense research interest due to the striking performance in photoharvesting photovoltaics as well as photoemitting applications. Very recently, the emerging CsPbX3 (X = Cl, Br, I) perovskite nanocrystals have been demonstrated to be efficient emitters with photoluminescence quantum yield as high as ∼90%, room temperature single photon sources, and favorable lasing materials. Herein, the nonlinear optical properties, in particular, the multiphoton absorption and resultant photoluminescence of the CsPbBr3 nanocrystals, were investigated. Notably, a large two-photon absorption cross-section of up to ∼1.2 × 10(5) GM is determined for 9 nm sized CsPbBr3 nanocrystals.…
Citation impact
- FWCI
- 38.23
- Percentile
- 100%
- References
- 36
Authors
6- YWYue WangCorresponding
Nanyang Technological University
- XLXiaoming Li
Nanjing University of Aeronautics and Astronautics, Nanjing University of Science and Technology
- XZXin Zhao
Nanyang Technological University
- LXLian Xiao
Nanyang Technological University
- HZHaibo Zeng
Nanjing University of Science and Technology
Topics & keywords
- Nanocrystal
- Photoluminescence
- Materials science
- Perovskite (structure)
- Lasing threshold
- Absorption (acoustics)
- Optoelectronics
- Photovoltaics