1. Laser-induced inverted patterning of nanocrystals embedded glass for micro-light-emitting diodes.
- Author
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Hu, Yuzhou, Ye, Ying, Zhang, Wenchao, Li, Kai, Zhou, Yao, Zhang, Yudong, Deng, Zhao, Han, Jianjun, Zhao, Xiujian, and Liu, Chao
- Subjects
NANOCRYSTALS ,SEMICONDUCTOR lasers ,DIODES ,FEMTOSECOND lasers ,LIGHT emitting diodes ,ORGANIC light emitting diodes ,QUANTUM dots ,FEMTOSECOND pulses - Abstract
• Femtosecond laser irradiation leads to amorphization of perovskite nanocrystals. • Photoluminescence of perovskite nanocrystals was modulated by femtosecond laser. • Inverted pattering of perovskite nanocrystals for micro-LEDs is achieved. High resolution and full-color light-emitting diodes require precise and efficient patterning of light-emitting structures containing quantum dots or nanocrystals. We report light-induced inverted patterning of nanocrystals in glasses for micro-light-emitting diodes. Ultrafast laser pulse induces structural destruction and amorphization of nanocrystals in glasses, forming inverted luminescent patterns. High-throughput patterning of micrometer-scale, thermally stable, and highly photoluminescent structures in nanocrystals embedded glass is realized. This patterning method provides a novel way to fabricate high-performance and ultrahigh-resolution color conversion layers for micrometer-scale light-emitting diodes. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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