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A novel method for fabricating lasers uses saucer-shaped quantum dots (QDs) to produce continuous laser light that could be brighter, less expensive and more tuneable than current devices. Although the ability to produce laser light using colloidal QDs (CQDs) was first demonstrated more than 15 years ago, commercial application has remained elusive because a very large amount of light is needed to excite the QDs, leading heating loss and overheating. Most QD lasers are limited to pulses of light lasting just a few nanoseconds.
Changing The Shape Of CQDs Could Enable Continuous QD Lasing
