The influence of a thin gold film on the optical spectral characteristics of a porous anodic aluminum-oxide membrane
- Authors: Ushakov N.M.1,2, Vasilkov M.Y.1,2, Fedorov F.S.1,2
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Affiliations:
- Yuri Gagarin State Technical University of Saratov
- Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
- Issue: Vol 43, No 7 (2017)
- Pages: 648-651
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/205370
- DOI: https://doi.org/10.1134/S1063785017070276
- ID: 205370
Cite item
Abstract
We have experimentally studied how a thin mesostructured gold film, deposited onto one side of a porous anodic aluminum-oxide membrane, influences its optical spectral characteristics in a 200–900 nm wavelength range. It is established that the gold film only modifies the spectral characteristics of the composite membrane at light wavelengths above 500 nm. The presence of a thin gold film ensures the surface conductivity of membrane on a level of 3.4 × 106 Ω–1 m–1, retains optical transparency within 10–20%, leads to the appearance of anomalous dispersion in the long-wavelength part of the transmission spectrum, and reduces the bandgap width from 5.61 eV (in anodic aluminum oxide) to 4.51 eV (in the composite). The obtained anodic aluminum-oxide membranes with thin gold films can be used as transparent conducting electrodes in optoelectronic devices with large light transmitter/receiver active areas.
About the authors
N. M. Ushakov
Yuri Gagarin State Technical University of Saratov; Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Author for correspondence.
Email: nmu@bk.ru
Russian Federation, Saratov, 410054; Saratov, 410019
M. Yu. Vasilkov
Yuri Gagarin State Technical University of Saratov; Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: nmu@bk.ru
Russian Federation, Saratov, 410054; Saratov, 410019
F. S. Fedorov
Yuri Gagarin State Technical University of Saratov; Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: nmu@bk.ru
Russian Federation, Saratov, 410054; Saratov, 410019