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Issue 6, 2015
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Molecular interfaces for plasmonic hot electron photovoltaics

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Abstract

The use of self-assembled monolayers (SAMs) to improve and tailor the photovoltaic performance of plasmonic hot-electron Schottky solar cells is presented. SAMs allow the simultaneous control of open-circuit voltage, hot-electron injection and short-circuit current. To that end, a plurality of molecule structural parameters can be adjusted: SAM molecule's length can be adjusted to control plasmonic hot electron injection. Modifying SAMs dipole moment allows for a precise tuning of the open-circuit voltage. The functionalization of the SAM can also be selected to modify short-circuit current. This allows the simultaneous achievement of high open-circuit voltages (0.56 V) and fill-factors (0.58), IPCE above 5% at the plasmon resonance and maximum power-conversion efficiencies of 0.11%, record for this class of devices.

Graphical abstract: Molecular interfaces for plasmonic hot electron photovoltaics

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Article information


Submitted
28 Oct 2014
Accepted
02 Jan 2015
First published
05 Jan 2015

Nanoscale, 2015,7, 2281-2288
Article type
Communication
Author version available

Molecular interfaces for plasmonic hot electron photovoltaics

F. Pelayo García de Arquer, A. Mihi and G. Konstantatos, Nanoscale, 2015, 7, 2281
DOI: 10.1039/C4NR06356B

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