標題: High-Bandwidth Green Semipolar (20-21) InGaN/GaN Micro Light-Emitting Diodes for Visible Light Communication
作者: Chen, Sung-Wen Huang
Huang, Yu-Ming
Chang, Yun-Han
Lin, Yue
Liou, Fang-Jyun
Hsu, Yu-Chien
Song, Jie
Choi, Joowon
Chow, Chi-Wai
Lin, Chien-Chung
Horng, Ray-Hua
Chen, Zhong
Han, Jung
Wu, Tingzhu
Kuo, Hao-Chung
交大名義發表
光電系統研究所
電子工程學系及電子研究所
光電工程學系
National Chiao Tung University
Institute of Photonic System
Department of Electronics Engineering and Institute of Electronics
Department of Photonics
關鍵字: semipolar GaN;micro light-emitting diode;visible light communication;high bandwidth
公開日期: 19-Aug-2020
摘要: The light-emitting diode (LED) is among promising candidates of light sources in visible light communication (VLC); however, strong internal polarization fields in common c-plane LEDs, especially green LEDs, result in low frequency and limited transmission performance. This study aims to overcome the limited 3-dB bandwidth of long-wavelength InGaN/GaN LEDs. Thus, semipolar (20-21) micro-LEDs (mu LEDs) were fabricated through several improved approaches on epitaxy and chip processes. The mu LED exhibits a 525 nm peak wavelength and good polarization performance. The highest 3-dB bandwidth up to 756 MHz and 1.5 Gbit/s data rate was achieved under a current density of 2.0 kA/cm(2). These results suggest a good transmission capacity of green semipolar (20-21) mu LEDs in VLC applications.
URI: http://dx.doi.org/10.1021/acsphotonics.0c00764
http://hdl.handle.net/11536/155463
ISSN: 2330-4022
DOI: 10.1021/acsphotonics.0c00764
期刊: ACS PHOTONICS
Volume: 7
Issue: 8
起始頁: 2228
結束頁: 2235
Appears in Collections:Articles