首页》回顾》金属结构件的高性能快速响应激光修复技术

通过激光打孔和切割提高GaN基发光二极管的输出功率 Enhancing the output power of GaN-based light-emitting diodes by laser drilling and cutting

演讲课题:通过激光打孔和切割提高GaN基发光二极管的输出功率 Enhancing the output power of GaN-based light-emitting diodes by laser drilling and cutting

演讲人:张守进 Shoou-Jinn Chang

演讲摘要:

In this study, we propose two methods using laser to enhance output power of GaN-based light-emitting diodes (LEDs). The first method is using laser to form a light guiding structure on sapphire substrate. The second method is using laser to drill air-voids inside the sapphire substrate. It was found that both methods can effectively enhance output power of GaN-based LEDs. Detailed fabrication procedures of these two methods will be reported. The electro-optical properties of the fabricated devices will also be discussed.

张守进 Shoou-Jinn Chang

台湾成功大学 教授

IEEE、OSA、SPIE会士

Shoou-Jinn Chang was born in Taipei, Taiwan on January 17, 1961. He received the B.S. degree from the National Cheng Kung University (NCKU), Tainan, Taiwan in 1983, the M.S. degree from the State University of New York, Stony Brook in 1985 and the Ph.D. degree from the University of California, Los Angeles in 1989, all in electrical engineering. From 1989 to 1992, he was a Research Scientist with the Nippon Telegraph and Telephone (NTT) Basic Research Laboratories, Musashino, Japan. He joined the Department of Electrical Engineering, NCKU in 1992 as an Associate Professor, where he was promoted to Full Professor in 1998. Currently, he is an NCKU Chair professor with the same department. He serves as the Director of the Institute of Microelectronics, NCKU from August 2008 to July 2011. He also serves as the Deputy Director of the Advanced Optoelectronic Technology Center, NCKU since 2006. He was a Royal Society Visiting Scholar with the University of Wales, Swansea, UK from January 1999 to March 1999, a Visiting Scholar with the Research Center for Advanced Science and Technology, University of Tokyo, Japan from July 1999 to February 2000, a Visiting Scholar with the Institute of Microstructural Science, National Research Council, Canada from August 2001 to September 2001, a Visiting Scholar with the Institute of Physics, Stuttgart University, Germany from August 2002 to September 2002, a Visiting Scholar with the Faculty of Engineering, Waseda University, Japan from July 2005 to September 2005, and a Visiting Scholar with the Faculty of Electrical Engineering and Information Technology since July 2007 to August 2008. He is also an honorary professor with Changchun University of Science and Technology, China. His current research interests include semiconductor physics, optoelectronic devices, and nanotechnology. Professor Chang is the recipient of the outstanding research award from the Ministry of Science and Technology (formerly National Science Council), Taiwan in 2004 and 2014. He is a Fellow of SPIE, a Fellow of OSA and a Fellow of IEEE.

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