Realization of ZnO Micro-Sphere Laser electrically excited through organic and inorganic hybrid hetero-junction

2015 Fiscal Year Final Research Report

• Project/Area Number: 26600118
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: Kyushu University
• Principal Investigator: OKADA TATSUO 九州大学, システム情報科学研究科(研究院, 教授 (90127994)
• Co-Investigator(Kenkyū-buntansha): Nakamura Daisuke 九州大学, 大学院システム情報科学研究院, 准教授 (40444864)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 酸化亜鉛 / ZnO / 微小球 / WGM / p-n接合 / 有機-無機ハイブリッド

Outline of Final Research Achievements

ZnO micro-spheres were synthesized by laser ablation in air using a Q-switched Nd:YAG laser. The p-n junction was fabricated with 3,4-ethylene- dioxythiophene: poly(styrenexulfonate) (PEDOT/PSS) film as a p-type organic conductor and a n-type ZnO shpere. The electrical and optical characteristics of the fabricated junction was examined. As the results, the rectifying characteristics and the EL emission were successfully observed. In some samples, the WGM mode structure was observed in the EL spectrum.

Free Research Field

総合理工