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- Tchoe, Youngbin
- Neural Interfaces and Semiconductor Optoelectronics Lab
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Variable-Color Light-Emitting Diodes Using GaN Microdonut arrays
- Author(s)
- Tchoe, Youngbin, Jo, Janghyun, Kim, Miyoung, Heo, Jaehyuk, Yoo, Geonwook, Sone, Cheolsoo, Yi, Gyu-Chul
- Issued Date
- 2014-05
- Citation
- ADVANCED MATERIALS, v.26, no.19, pp.3019 - 3023
- Abstract
- Microdonut-shaped GaN/InxGa1-xN light-emitting diode (LED) microarrays are fabricated for variable-color emitters. The figure shows clearly donut-shaped light emission from all the individual microdonut LEDs. Furthermore, microdonut LEDs exhibit spatially-resolved blue and green EL colors, which can be tuned by either controlling the external bias voltage or changing the size of the microdonut LED.
- Publisher
- WILEY-V C H VERLAG GMBH
- ISSN
- 0935-9648
- Keyword (Author)
- light-emitting diodes, nanostructure, multicolor, quantum well, and indium gallium nitride
- Keyword
- BLUE
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