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Can I read Two-Photon-Pumped Perovskite Semiconductor Nanocrystal Lasers on EtoBox?
Two-Photon-Pumped Perovskite Semiconductor Nanocrystal Lasers by Yanqing Xu; Qi Chen; Chunfeng Zhang; Rui Wang; Hua Wu; Xiaoyu Zhang; Guichuan Xing; William W. Yu; Xiaoyong Wang; Yu Zhang; Min Xiao is a Chemistry article available to read on EtoBox.
What is Two-Photon-Pumped Perovskite Semiconductor Nanocrystal Lasers about?
Two-photon-pumped lasers have been regarded as a promising strategy to achieve frequency up-conversion for situations where the condition of phase matching required by conventional approaches cannot be fulfilled. However, their practical applications have been hindered by the lack of materials holding both efficient two-photon absorption and ease of achieving population inversion. Here, we show that this challenge can be tackled by employing colloidal nanocrystals of perovskite semiconductors. We observe highly efficient two-photon absorption (with a cross section of 2.7 × 10 6 GM) in toluene solutions of CsPbBr 3 nanocrystals that can excite large optical gain (> 500 cm -1 ) in thin films. We have succeeded in demonstrating stable two-photon-pumped lasing at a remarkable low threshold by coupling CsPbBr 3 nanocrystals with microtubule resonators. Our findings suggest perovskite nanocrystals can be used as excellent gain medium for high-performance frequency-up-conversion lasers towards practical applications.
Who reads Two-Photon-Pumped Perovskite Semiconductor Nanocrystal Lasers?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Yanqing Xu; Qi Chen; Chunfeng Zhang; Rui Wang; Hua Wu; Xiaoyu Zhang; Guichuan Xing; William W. Yu; Xiaoyong Wang; Yu Zhang; Min Xiao
- Published
- 2016
- Language
- EN
- Field
- Chemistry (Physical Sciences)