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Optical Engineering • Open Access

Electrodynamic properties of aqueous spray-deposited SnO2:F films for infrared plasmonics
Author(s): Robert E. Peale; Evan Smith; Hussain Abouelkhair; Isaiah O. Oladeji; Shiva Vangala; Tim Cooper; Gordon Grzybowski; Farnood Khalilzadeh-Rezaie; Justin W. Cleary

Paper Abstract

Electrodynamic properties of fluorine-doped tin oxide films grown by aqueous-spray-based heterogeneous reaction on heated hydrophilic substrates were investigated with emphasis on applications to infrared plasmonics. These properties were correlated with physical ones such as crystallinity, dopant and electron concentrations, conductivity, and mobility. The degree of crystallinity for the nanocrystalline films increases with F concentration and growth temperature. The F concentration in the films is proportional to that in the starting solution. Electron concentration and Hall mobility rise more slowly with F concentration. At their highest, both F and electron concentrations are 2 % of the Sn concentration. In more lightly doped films, the electron concentration significantly exceeds the F concentration. The achieved resistivity of the doped films is lower than for undoped SnO 2 film by 20 to 750 times. The infrared complex permittivity spectrum shows a shift in plasma wavelength from 15 to 2    μ m with more than two orders increase in F concentration.

Paper Details

Date Published: 29 March 2017
PDF: 8 pages
Opt. Eng. 56(3) 037109 doi: 10.1117/1.OE.56.3.037109
Published in: Optical Engineering Volume 56, Issue 3
Show Author Affiliations
Robert E. Peale, Univ. of Central Florida (United States)
KBRwyle (United States)
Evan Smith, KBRwyle (United States)
Air Force Research Lab. (United States)
Hussain Abouelkhair, Univ. of Central Florida (United States)
Isaiah O. Oladeji, SISOM Thin Films, LLC (United States)
Shiva Vangala, Air Force Research Lab. (United States)
Azimuth Corp. (United States)
Tim Cooper, KBRwyle (United States)
Air Force Research Lab. (United States)
Gordon Grzybowski, KBRwyle (United States)
Air Force Research Lab. (United States)
Farnood Khalilzadeh-Rezaie, Univ. of Central Florida (United States)
Justin W. Cleary, Air Force Research Lab. (United States)

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