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Ultrastable low-cost colloidal quantum dot microlasers of operative temperature up to 450 K by Chang, Hao (author);Zhong, Yichi (author);Dong, Hongxing (author);Wang, Zhenyu (author);Xie, Wei (author);Pan, Anlian (author);Zhang, Long (author) is a Engineering article available to read on EtoBox.
What is Ultrastable low-cost colloidal quantum dot microlasers of operative temperature up to 450 K about?
## Abstract Quantum dot microlasers, as multifunctional optical source components, are of great importance for full-color high-pixel display, miniaturized coherent lighting, and on-chip integrated photonic and electronic circuits. Since the first synthesis of colloidal quantum dots (CQD) in the 1990s, motivation to realize high-performance low-cost CQD micro-/nanolasers has been a driving force for more than three decades. However, the low packing density, inefficient coupling of CQDs with optical cavities, and the poor thermal stability of miniaturized complex systems make it challenging to achieve practical CQD micro-/nanolasers, especially to combine the continuous working ability at high temperatures and the low-cost potential with mass-produced synthesis technologies. Herein, we developed close-packed CQD-assembled microspheres and embedded them in a silica matrix through the rapid self-aggregation and solidification of CdSe/ZnS CQD. This technology addresses the core issues of photoluminescence (PL) quenching effect and low optical gain in traditional CQD laser research. High-efficiency low-threshold CQD microlasers are demonstrated together with long-playing (40 min) working
Who reads Ultrastable low-cost colloidal quantum dot microlasers of operative temperature up to 450 K?
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- Author
- Chang, Hao (author);Zhong, Yichi (author);Dong, Hongxing (author);Wang, Zhenyu (author);Xie, Wei (author);Pan, Anlian (author);Zhang, Long (author)
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)