Optical properties of nanostructured electrodes

Akram A. Khosroabadi; Palash Gangopadhyay; Binh Duong; Jayan Thomas; Robert A. Norwood

doi:10.1557/opl.2013.610

Optical properties of nanostructured electrodes

Akram A. Khosroabadi, Palash Gangopadhyay, Binh Duong, Jayan Thomas, Robert A. Norwood

Optical Sciences, College of

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A versatile and powerful new lithographic fabrication method has been used to fabricate a number of nano-architectured ordered 2-D indium tin oxide (ITO) and silver (Ag) electrodes. By careful tuning of the dimensions of the nanofeatures in the electrodes, the surface area can be enhanced as desired, in-turn changing resistivity and free carrier concentrations accordingly. Absorption spectra of the samples show the existence of a new optical bandgap, in addition to the bulk bandgap, that is smaller. Nanostructured electrodes show enhanced transparency compared to their planar counterparts and demonstrate typical surface plasmon characteristics. The resonance frequency can be tuned as well by changing the dimensions of the nanofeatures in the electrodes.

Original language	English (US)
Title of host publication	Nanostructured Metal Oxides for Advanced Applications
Pages	119-124
Number of pages	6
DOIs	https://doi.org/10.1557/opl.2013.610
State	Published - Dec 1 2013
Event	2013 MRS Spring Meeting - San Francisco, CA, United States Duration: Apr 1 2013 → Apr 5 2013

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1552
ISSN (Print)	0272-9172

Other

Other	2013 MRS Spring Meeting
Country	United States
City	San Francisco, CA
Period	4/1/13 → 4/5/13

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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AU - Gangopadhyay, Palash

AU - Duong, Binh

AU - Thomas, Jayan

AU - Norwood, Robert A.

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AB - A versatile and powerful new lithographic fabrication method has been used to fabricate a number of nano-architectured ordered 2-D indium tin oxide (ITO) and silver (Ag) electrodes. By careful tuning of the dimensions of the nanofeatures in the electrodes, the surface area can be enhanced as desired, in-turn changing resistivity and free carrier concentrations accordingly. Absorption spectra of the samples show the existence of a new optical bandgap, in addition to the bulk bandgap, that is smaller. Nanostructured electrodes show enhanced transparency compared to their planar counterparts and demonstrate typical surface plasmon characteristics. The resonance frequency can be tuned as well by changing the dimensions of the nanofeatures in the electrodes.

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Optical properties of nanostructured electrodes

Abstract

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