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Medientyp:
E-Artikel
Titel:
Transparent conducting oxide induced by liquid electrolyte gating
Beteiligte:
ViolBarbosa, Carlos;
Karel, Julie;
Kiss, Janos;
Gordan, Ovidiu-dorin;
Altendorf, Simone G.;
Utsumi, Yuki;
Samant, Mahesh G.;
Wu, Yu-Han;
Tsuei, Ku-Ding;
Felser, Claudia;
Parkin, Stuart S. P.
Erschienen:
Proceedings of the National Academy of Sciences, 2016
Erschienen in:Proceedings of the National Academy of Sciences
Sprache:
Englisch
DOI:
10.1073/pnas.1611745113
ISSN:
0027-8424;
1091-6490
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Significance</jats:title>
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Highly conducting transparent oxides are widely used as electrodes in various electronic devices where optical transparency through a low-resistance electrode is needed. Here, we show that highly conducting transparent oxide films can be formed by electrolyte gating of thin films of tungsten oxide, WO
<jats:sub>3</jats:sub>
, that are initially insulating. Optical and electronic structure measurements show that the films are transparent in the visible spectrum before gating, due to the significant electronic band gap of ∼3.0 eV. No significant change in the band gap is found on gating the films to the metallic state so that the films remain transparent in the visible spectral region. Thus electrolyte gating of insulating oxides is a means of obtaining new classes of transparent conducting electrodes.
</jats:p>