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, Yon-Hua Tzeng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

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
Publication statusPublished - 2010 Dec 1
Event2010 10th IEEE Conference on Nanotechnology, NANO 2010 - Ilsan, Gyeonggi-Do, Korea, Republic of
Duration: 2010 Aug 172010 Aug 20

Publication series

Name2010 10th IEEE Conference on Nanotechnology, NANO 2010

Other

Other2010 10th IEEE Conference on Nanotechnology, NANO 2010
CountryKorea, Republic of
CityIlsan, Gyeonggi-Do
Period10-08-1710-08-20

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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