Colloidal-Quantum-Dot Ring Lasers with Active Color Control
نویسندگان
چکیده
منابع مشابه
Colloidal-Quantum-Dot Ring Lasers with Active Color Control
To improve the photophysical performance of colloidal quantum dots for laser applications, sophisticated core/shell geometries have been developed. Typically, a wider bandgap semiconductor is added as a shell to enhance the gain from the quantum-dot core. This shell is designed to electronically isolate the core, funnel excitons to it, and reduce nonradiative Auger recombination. However, the s...
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متن کاملTitle Nanosecond colloidal quantum dot lasers for sensing
Low-threshold, gain switched colloidal quantum dot (CQD) distributed-feedback lasers operating in the nanosecond regime are reported and proposed for sensing applications for the first time to the authors’ knowledge. The lasers are based on a mechanically-flexible polymeric, second order grating structure overcoated with a thin-film of CQD/PMMA composite. The threshold fluence of the resulting ...
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ژورنال
عنوان ژورنال: Nano Letters
سال: 2018
ISSN: 1530-6984,1530-6992
DOI: 10.1021/acs.nanolett.7b04495