Ordered nanowire array blue/near-UV light emitting diodes

Sheng Xu, Chen Xu, Ying Liu, Youfan Hu, Rusen Yang, Qing Yang, Jae Hyun Ryou, Hee Jin Kim, Zachary Lochner, Suk Choi, Russell Dupuis, Zhong Lin Wang

Research output: Contribution to journalArticlepeer-review

195 Scopus citations

Abstract

Blue/near-UV light emitting diodes composed of position controlled n-ZnO nanowires arrays and a p-GaN thin film substrate are demonstrated. Under forward bias, each single nanowire is a light emitter. By Gaussian deconvolution of the emission spectrum, the origins of the blue/near-UV emission are assigned specifically to three distinct electron-hole recombination processes. The LEDs give an external quantum efficiency of 2.5%.

Original languageEnglish (US)
Pages (from-to)4749-4753
Number of pages5
JournalAdvanced Materials
Volume22
Issue number42
DOIs
StatePublished - Nov 9 2010

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