The influence of a thin gold film on the optical spectral characteristics of a porous anodic aluminum-oxide membrane

N. M. Ushakov, M. Yu Vasilkov, F. S. Fedorov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)648-651
Number of pages4
JournalTechnical Physics Letters
Volume43
Issue number7
DOIs
Publication statusPublished - 1 Jul 2017
Externally publishedYes

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