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Journal of Photonics for Energy • Open Access

Transparent electrode of nanoscale metal film for optoelectronic devices<xref ref-type="fn" rid="fn1" /<

Paper Abstract

This paper reviews the principles, impediments, and recent progress in the development of ultrathin flexible Ag electrodes for use in flexible optoelectronic devices. Thin Ag-based electrodes are promising candidates for next-generation flexible transparent electrodes. Thin Ag-based electrodes that have a microcavity structure show the best device performance, but have relatively low optical transmittance (OT) due to reflection and absorption of photons by the thin Ag; this trait causes problems such as spectral narrowing and change of emission color with viewing angle in white organic light-emitting diodes. Thinning the Ag electrode to <−10  nm thickness (ultrathin Ag) is an approach to overcome these problems. This ultrathin Ag electrode has a high OT, while providing comparable sheet resistance similar to indium tin oxide. As the OT of the electrode increases, the cavity is weakened, so the spectral width of the emission and the angular color stability are increased.

Paper Details

Date Published: 13 May 2015
PDF: 12 pages
J. Photon. Energy 5(1) 057609 doi: 10.1117/1.JPE.5.057609
Published in: Journal of Photonics for Energy Volume 5, Issue 1
Show Author Affiliations
Illhwan Lee, Pohang Univ. of Science and Technology (Korea, Republic of)
Jong-Lam Lee, Pohang Univ. of Science and Technology (Korea, Republic of)

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