Energy Efficient p-GaN/n-ZnO Light-Emitting Diodes Based On ZnO/graphene Composite Nanorods Prepared By Hydrothermal Method

• Main Authors: Haung, Ru-Ting, 黃如廷
• Other Authors: Lin, Tai-Yuan
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/22222286157729404233

碩士 === 國立臺灣海洋大學 === 光電科學研究所 === 103 === Enhanced electroluminesce (EL) of GaN/ZnO composite nanorods light-emitting diodes (LEDs) based on ZnO/graphene composites utilizing the excellent properties of graphene, such as high electrical conductivity and high light transparency were realized. The LEDs using ZnO/graphene composite nanorods with proper concentrations of graphene showed enhanced EL and photoluminecence (PL) with respect to that of LEDs with only pure ZnO nanorods. The enhanced light output power of energy efficient p-GaN/n-ZnO composite nanorods LEDs reported here can be possibly attributed to the important role of graphene flakes in ZnO/graphene composite nanorods acting as a conducting network in the ZnO active matrix that leads to the improved electrical conductivity and the surface plasmon (SP) enhanced light emission.