Controlled growth density and patterning of silica nanorings and nanowires with enhanced ultraviolet cathodoluminescence peak

Tung Hao Chang, Yuan Chun Lai, Yu Cheng Chang*, Fu-Hsiang Ko, Fu Ken Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This study reports the use of monodisperse Au nanoparticles (NPs) as a catalyst for growing silica nanorings (NRs) and nanowires (NWs). Combining spin coating and optical lithography strategies makes it possible to fabricate pattern-monolayer Au NPs that self-assemble on a 3-aminopropyltrimethoxysilane (APTMS)-modified silicon substrate. This can be used as a catalyst for the selective-area growth of silica NRs and NWs. Cathodoluminescence (CL) analysis reveals these NRs and NWs materials exhibit a blue-light emitting phenomenon. The novel optical properties of these materials are advantageous in applications for light-emitting devices with nanoscale dimensions.

Original languageEnglish
Pages (from-to)8140-8150
Number of pages11
JournalInternational Journal of Electrochemical Science
Volume7
Issue number9
StatePublished - 1 Dec 2012

Keywords

  • Cathodoluminescence
  • Nanoparticles
  • Nanorings
  • Nanowires

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