High-voltage thin-film GaN LEDs fabricated on ceramic substrates: The alleviated droop effect at 670 W/cm2

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103555

Title:	High-voltage thin-film GaN LEDs fabricated on ceramic substrates: The alleviated droop effect at 670 W/cm2
Authors:	鍾德元;Tsai, M L;Liao, J H;Yeh, J H;Hsu, T C;Hon, S J;Chung, T Y;Lai, K Y
Contributors:	理學院光電科學與工程學系
Date:	2013-11-04
Issue Date:	2026-04-23 11:32:46 (UTC+8)
Publisher:	The Optical Society;United States
Abstract:	摘要： High-voltage thin-film GaN LEDs with the emission wavelength of 455 nm were fabricated on ceramic substrates (230 W/m · K). The high-voltage operation was achieved by three cascaded sub-LEDs with dielectric passivation and metal bridges conformally deposited on the side walls. Under the driving power of 670 W/cm(2), the high-voltage LEDs exhibit much alleviated efficiency droop and the operative temperature below 80 °C. The excellent performances were attributed to the improved current spreading within each sub-LED and the superior heat sinking of the ceramic substrate. 其他題名： Opt Express 出版者： United States 出版日期： 2013-11-04 出處： Optics express, 2013-11, Vol.21 (22), p.27102 資源來源： Optica Publishing Group Journals 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/OE.21.027102 識別號： PMID: 24216934
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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