https://scholars.lib.ntu.edu.tw/handle/123456789/635597
Title: | Investigations on the high performance of InGaN red micro-LEDs with single quantum well for visible light communication applications | Authors: | Hsiao, Fu He Lee, Tzu Yi Miao, Wen Chien Pai, Yi Hua Iida, Daisuke Lin, Chun Liang Chen, Fang Chung Chow, Chi Wai CHIEN-CHUNG LIN Horng, Ray Hua He, Jr Hau Ohkawa, Kazuhiro Hong, Yu Heng Chang, Chiao Yun Kuo, Hao Chung |
Keywords: | Micro-LED | Red InGaN-based LED | Visible light communication | Issue Date: | 1-Dec-2023 | Journal Volume: | 18 | Journal Issue: | 1 | Source: | Discover Nano | Abstract: | In this study, we have demonstrated the potential of InGaN-based red micro-LEDs with single quantum well (SQW) structure for visible light communication applications. Our findings indicate the SQW sample has a better crystal quality, with high-purity emission, a narrower full width at half maximum, and higher internal quantum efficiency, compared to InGaN red micro-LED with a double quantum wells (DQWs) structure. The InGaN red micro-LED with SQW structure exhibits a higher maximum external quantum efficiency of 5.95% and experiences less blueshift as the current density increases when compared to the DQWs device. Furthermore, the SQW device has a superior modulation bandwidth of 424 MHz with a data transmission rate of 800 Mbit/s at an injection current density of 2000 A/cm2. These results demonstrate that InGaN-based SQW red micro-LEDs hold great promise for realizing full-color micro-display and visible light communication applications. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/635597 | ISSN: | 2731-9229 | DOI: | 10.1186/s11671-023-03871-z |
Appears in Collections: | 電機工程學系 |
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