High performance light emitting diode by subwavelength grating

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560377
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electronic materials/Electric materials
• Research Institution: The University of Tokushima
• Principal Investigator: NAOI Yoshiki 徳島大学, ソシオテクノサイエンス研究部, 教授 (90253228)
• Co-Investigator(Kenkyū-buntansha): HARAGUCHI Masanobu 徳島大学, 大学院ソシオテクノサイエンス研究部, 教授 (20198906)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 偏光制御 / 発光ダイオード / ナノ周期構造

Outline of Final Research Achievements

We have studied on the development of III-nitride light emitting diode(LED) by using subwavelength periodic structure. Especially, we have examined the high polarized light emitting diode in UV wavelength region. By the theoretical analysis of the eigen-mode and the calculation of the electromagnetic distribution within the subwavelength lattice region, we determined the optimum condition of the subwavelength grating for the fabrication of highly polarized UV-LED. We have succeeded the development of UV-LED with high polarization selectivity, p:s=18:1.

Free Research Field

半導体光デバイス