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

Research output: Contribution to journal › Article › peer-review

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)
Pages (from-to)	119-124
Number of pages	6
Journal	Earth and Environmental Science Transactions of the Royal Society of Edinburgh
Volume	1552
Issue number	1
DOIs	https://doi.org/10.1557/opl.2013.610
State	Published - Nov 14 2013

Keywords

nanostructure
optical properties
transparent conductor

ASJC Scopus subject areas

General Environmental Science
General Earth and Planetary Sciences

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10.1557/opl.2013.610

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AU - Duong, Binh

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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

Keywords

ASJC Scopus subject areas

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