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All-carbon stretchable and cavity-free white lasers
Optics Express
|October 13, 2022
Summary
Researchers developed cavity-free, stretchable white light lasers using carbon quantum dots and crumpled graphene. These eco-friendly lasers offer broadband white-light emission for advanced wearable technologies and solid-state lighting.
Area of Science:
- Materials Science
- Optoelectronics
- Nanotechnology
Background:
- Flexible, stretchable, and bendable electronics are crucial for smart life applications.
- Environmentally friendly, cost-effective, wide-angle emission lasers are needed for emerging technologies.
Purpose of the Study:
- To demonstrate cavity-free and stretchable white light lasers using all-carbon materials.
- To overcome challenges in creating advanced laser technologies.
Main Methods:
- Integration of fluorescent carbon quantum dots (CQDs) with crumpled graphene.
- Fabrication of cavity-free laser devices.
Main Results:
- Successful demonstration of stretchable, white light, cavity-free lasers.
- Achieved broadband white-light emission with CIE chromaticity coordinates of (0.30, 0.38).
Conclusions:
- The developed all-carbon material lasers are unprecedented, non-toxic, stretchable, and white-light emitting.
- These lasers are suitable for next-generation optoelectronic devices, including solid-state lighting and wearable technologies.
