Solution-based growth of ZnO nanorods for light-emitting devices: Hydrothermal vs. electrodeposition

A. M C Ng, X. Y. Chen, F. Fang, Y. F. Hsu, A. B. Djurišić, C. C. Ling, H. L. Tam, K. W. Cheah, P. W K Fong, H. F. Lui, C. Surya, W. K. Chan

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

ZnO nanorods have been grown by two inexpensive, solution-based, low-temperature methods: hydrothermal growth and electrodeposition. Heterojunction n-ZnO nanorods/p-GaN light-emitting diodes have been studied for different nanorod growth methods and different preparation of the seed layer. We demonstrate that both the nanorod properties and the device performance are strongly dependent on the growth method and seed layer. All the devices exhibit light emission under both forward and reverse bias, and the emission spectra can be tuned by ZnO nanorod deposition conditions. Electrodeposition of rods or a seed layer results in yellow emission, while conventional hydrothermal growth results in violet emission.

Original languageEnglish
Pages (from-to)851-858
Number of pages8
JournalApplied Physics B: Lasers and Optics
Volume100
Issue number4
DOIs
Publication statusPublished - Sep 1 2010
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

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