Slanted n-ZnO/p-GaN nanorod arrays light-emitting diodes grown by oblique-angle deposition

Ya Ju Lee, Zu Po Yang, Fang Yuh Lo, Jhih Jhong Siao, Zhong Han Xie, Yi Lun Chuang, Tai Yuan Lin, Jinn Kong Sheu

研究成果: 雜誌貢獻期刊論文同行評審

33 引文 斯高帕斯(Scopus)

摘要

High-efficient ZnO-based nanorod array light-emitting diodes (LEDs) were grown by an oblique-angle deposition scheme. Due to the shadowing effect, the inclined ZnO vapor-flow was selectively deposited on the tip surfaces of pre-fabricated p-GaN nanorod arrays, resulting in the formation of nanosized heterojunctions. The LED architecture composed of the slanted n-ZnO film on p-GaN nanorod arrays exhibits a well-behaving current rectification of junction diode with low turn-on voltage of 4.7 V, and stably emits bluish-white luminescence with dominant peak of 390 nm under the operation of forward injection currents. In general, as the device fabrication does not involve passivation of using a polymer or sophisticated material growth techniques, the revealed scheme might be readily applied on other kinds of nanoscale optoelectronic devices.

原文英語
文章編號056101
期刊APL Materials
2
發行號5
DOIs
出版狀態已發佈 - 2014 5月

ASJC Scopus subject areas

  • 一般材料科學
  • 一般工程

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