journal article·2017-01

Graphite distributed electrodes for diamond-based photon-enhanced thermionic emission solar cells

Marco Girolami, Luigino Criante, Fabio Di Fonzo, Sara Lo Turco, Alessandro Mezzetti, Andrea Notargiacomo, Marialilia Pea, Alessandro Bellucci, Paolo Calvani, Veronica Valentini, Daniele M. Trucchi

Carbon· Volume 111
Publisher page

Abstract

Graphite conductive vertical microchannels, fabricated by femtosecond laser treatment, are proposed as distributed electrodes in defect-engineered ("black") single-crystal diamond cathodes for innovative solar cells. Energy conversion is based on photon-enhanced thermionic emission, where the reduction of the cathode series resistance is crucial to preserve conversion efficiency. Process yield higher than 80% and resistivity as low as 0.75 Ohm cm were achieved by the optimization of laser parameters and the use of a multi-pass writing technique. A 100x100 array of graphite electrodes was integrated in a diamond-based cathode prototype, reducing the series resistance of more than 10 orders of magnitude with respect to bulk diamond.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Diamond and Carbon-based Materials Research · Nanowire Synthesis and Applications · Molecular Junctions and Nanostructures

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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