Title

Catoptric Electrodes: Transparent Metal Electrodes Using Shaped Surfaces

Abstract

An optical electrode design is presented that theoretically allows 100% optical transmission through an interdigitated metallic electrode at 50% metal areal coverage. This is achieved by redirection of light incident on embedded metal electrode lines to an angle beyond that required for total internal reflection. Full-field electromagnetic simulations using realistic material parameters demonstrate 84% frequency-averaged transmission for unpolarized illumination across the entire visible spectral range using a silver interdigitated electrode at 50% areal coverage. The redirection is achieved through specular reflection, making it nonresonant and arbitrarily broadband, provided the electrode width exceeds the optical wavelength. These findings could significantly improve the performance of photovoltaic devices and optical detectors that require high-conductivity top contacts. © 2014 Optical Society of America.

Publication Date

1-1-2014

Publication Title

Optics Letters

Volume

39

Issue

17

Number of Pages

5114-5117

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.39.005114

Socpus ID

84906861746 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84906861746

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