Optical switching of porous anodic aluminum oxide films embedded with silver nanoparticles

  • Ben Chao Lau
  • , Chih Yi Liu
  • , Hsing Ying Lin
  • , Chen Han Huang
  • , Cheng Wen Huang
  • , Hsiang Chen Chui
  • , Yonhua Tzeng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Dielectric films embedded with two-dimensional (2-D) arrays of metal nanoparticles have been fabricated by electro deposition of silver into nanopores of anodic aluminum oxide (AAO) films. Their pore diameter and inter-pore spacing are 80 nm and 20 nm, respectively. With its photoconductivity, the specimen has a higher conductance when being illuminated by a 514 nm wavelength laser. This photoconductivity can be explained by improved electron transport due to plasmonic coupling among neighboring silver nanoparticles induced by light illumination. The 2-D photoconductivity is expected to enable applications which are not suitable for one-dimensional photoconductivity induced by plasmonic coupling of nanoparticles embedded in nanowires. The 2-D photoconductivity of metal-nanoparticle-embedded dielectric films are expected to facilitate optoelectronic integrated circuits in the future.

Original languageEnglish
Title of host publication2010 10th IEEE Conference on Nanotechnology, NANO 2010
Pages281-284
Number of pages4
DOIs
StatePublished - 2010
Event2010 10th IEEE Conference on Nanotechnology, NANO 2010 - Ilsan, Gyeonggi-Do, Korea, Republic of
Duration: 17 Aug 201020 Aug 2010

Publication series

Name2010 10th IEEE Conference on Nanotechnology, NANO 2010

Conference

Conference2010 10th IEEE Conference on Nanotechnology, NANO 2010
Country/TerritoryKorea, Republic of
CityIlsan, Gyeonggi-Do
Period17/08/1020/08/10

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