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

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題名:	High-voltage thin-film GaN LEDs fabricated on ceramic substrates: The alleviated droop effect at 670 W/cm2
作者:	鍾德元;Tsai, M L;Liao, J H;Yeh, J H;Hsu, T C;Hon, S J;Chung, T Y;Lai, K Y
貢獻者:	理學院光電科學與工程學系
日期:	2013-11-04
上傳時間:	2026-04-23 11:32:46 (UTC+8)
出版者:	The Optical Society;United States
摘要:	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
顯示於類別:	[光電科學與工程學系] 期刊論文

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