title: Electroluminescence of ordered ZnO nanorod array/p-GaN light-emitting diodes with graphene current spreading layer.
abstract: Ordered ZnO nanorod array/p-GaN heterojunction light-emitting diodes (LEDs) have been fabricated by introducing graphene as the current spreading layer, which exhibit improved electroluminescence performance by comparison to the LED using a conventional structure (indium-tin-oxide as the current spreading layer). In addition, by adjusting the diameter of ZnO nanorod array in use, the light emission of the ZnO nanorod array/p-GaN heterojunction LEDs was enhanced further. This work has great potential applications in solid-state lighting, high performance optoelectronic devices, and so on.
  78.60.Fi; 85.60.Jb; 78.67.Lt; 81.10.Dn.
authors.affiliation: School of Science, China University of Geosciences (Beijing), 29 Xue Yuan Road, Haidian District, Beijing, 100083, China.
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Dong
authors.affiliation: School of Science, China University of Geosciences (Beijing), 29 Xue Yuan Road, Haidian District, Beijing, 100083, China.
authors.forename: Hui-Ying
authors.initials: HY
authors.lastname: Hao
authors.affiliation: School of Science, China University of Geosciences (Beijing), 29 Xue Yuan Road, Haidian District, Beijing, 100083, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Xing
authors.affiliation: School of Science, China University of Geosciences (Beijing), 29 Xue Yuan Road, Haidian District, Beijing, 100083, China.
authors.forename: Zhen-Jun
authors.initials: ZJ
authors.lastname: Fan
authors.affiliation: School of Science, China University of Geosciences (Beijing), 29 Xue Yuan Road, Haidian District, Beijing, 100083, China.
authors.forename: Zi-Li
authors.initials: ZL
authors.lastname: Zhang
keywords: Graphene; Light-emitting diodes; Nanorod array; Zinc oxide