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- Title
Organic Printed Core–Shell Heterostructure Arrays: A Universal Approach to All‐Color Laser Display Panels.
- Authors
Zhou, Zhonghao; Zhao, Jinyang; Du, Yuxiang; Wang, Kang; Liang, Jie; Yan, Yongli; Zhao, Yong Sheng
- Abstract
A universal approach is demonstrated for realizing dual‐wavelength lasing in organic core–shell structured microlaser arrays, which show great promise in serving as all‐color laser display panels. By alternately printing hydrophilic and hydrophobic laser dye solutions on preprocessed substrates, precisely patterned core–shell heterostructure arrays were obtained. The spatially separated core and shell independently function as optical resonators to support dual‐wavelength tunable lasing in each heterostructure. Such a general method enables to flexibly control the lasing wavelength of the core–shell microlasers across a wide spectral range by systematically designing the gain media. Using as‐prepared microlaser arrays as display panels, full‐color laser displays were achieved with a color gamut much larger than that of standard RGB space. These results provide insights for design concepts and device construction for novel optoelectronic applications.
- Subjects
OPTICAL resonators; DYE lasers; LASERS; ACTIVE medium
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 29, p11912
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202002580