Chinese researchers have invented a high-efficiency ultrastable low-cost colloidal quantum dots (CQDs) microlasers, which can be operated even at 450 K, and this is the highest operational temperature for CQDs lasers.
The achievement is noteworthy because microlasers, as multifunctional optical source components, are of great importance for optoelectronic devices, and motivation to realize high-performance high-temperature stable micro-/nanolasers have been a driving force for more than three decades.
CQDs microlasers are an important research focus because of their extraordinary temperature-insensitive optical properties and low-cost preparation processes.
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