Highly Conductive Transparent and Flexible Electrodes Including Double-Stacked Thin Metal Films for Transparent Flexible Electronics

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To keep pace with the era of transparent and deformable electronics, electrode functions should be improved. In this paper, an innovative structure is suggested to overcome the trade-off between optical and electrical properties that commonly arises with transparent electrodes. The structure of double-stacked metal films showed high conductivity (<3 Omega/sq) and high transparency (similar to 90%) simultaneously. A proper space between two metal films led to high transmittance by an optical phenomenon. The principle of parallel connection allowed the electrode to have high conductivity. In situ fabrication was possible because the only materials composing the electrode were silver and WO3, which can be deposited by thermal evaporation. The electrode was flexible enough to withstand 10 000 bending cycles with a 1 mm bending radius. Furthermore, a few mu m scale patterning of the electrode was easily implemented by using photolithography, which is widely employed industrially for patterning. Flexible organic light-emitting diodes and a transparent flexible thin-film transistor were successfully fabricated with the proposed electrode. electrode to new transparent flexible electronics are expected.
Publisher
AMER CHEMICAL SOC
Issue Date
2017-05
Language
English
Article Type
Article
Keywords

LIGHT-EMITTING-DIODES; LOW-RESISTIVE TRANSPARENT; SOLAR-CELLS; HIGH-PERFORMANCE; MULTILAYER ELECTRODES; GRAPHENE; FABRICATION; DEVICES; ANODE; AG

Citation

ACS APPLIED MATERIALS INTERFACES, v.9, no.19, pp.16343 - 16350

ISSN
1944-8244
DOI
10.1021/acsami.7b04725
URI
http://hdl.handle.net/10203/224558
Appears in Collection
EE-Journal Papers(저널논문)
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