標題: Characteristics of Single-Chip GaN-Based Alternating Current Light-Emitting Diode
作者: Yen, Hsi-Hsuan
Kuo, Hao-Chung
Yeh, Wen-Yung
光電工程學系
Department of Photonics
關鍵字: GaN;light-emitting diode;alternating current;Wheatstone Bridge
公開日期: 1-Dec-2008
摘要: In this study, a GaN-based alternating current light-emitting diode (AC-LED) with 34 numbers of microchips illuminated in each bias direction was fabricated. After calibrating the integration duration, the light output powers of the AC-LED driven by AC and DC were 388.1 and 312.8 mW when the input power was about I W, respectively. The flickering illumination mode of the AC-LED driven by AC decreased the heat accumulation and revealed a higher energy utilization efficiency than that of the AC-LED driven by DC. The larger blue shift and smaller full width at half maximum of the AC-LED driven by AC than those of the AC-LED driven by DC were also observed. [DOI: 10.1143/JJAP.47.8808]
URI: http://dx.doi.org/10.1143/JJAP.47.8808
http://hdl.handle.net/11536/8076
ISSN: 0021-4922
DOI: 10.1143/JJAP.47.8808
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS
Volume: 47
Issue: 12
起始頁: 8808
結束頁: 8810
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