Solution-Processed Reduced Graphene Oxide Electrodes for Organic Photovoltaics
Constantinos Petridis,
a,b*
Dimitrios Konios,
a,c
Minas M. Stylianakis,
a
Emmanuel Stratakis
d
and Emmanuel Kymakis
a
a
Center of Materials Technology and Photonics & Electrical Engineering Department,
School of Applied Technology, Technological Educational Institute (TEI) of Crete, Heraklion
71004, Crete, Greece.
b
Department of Electronic Engineering Technological Educational Institute (TEI) of Crete,
Chania 73132, Crete, Greece.
c
Department of Chemistry, University of Crete, Heraklion 71003 Crete, Greece.
d
Institute of Electronic Structure and Laser Foundation for Research and Technology-Hellas,
Heraklion 71110, Crete, Greece.
*
Email
Since the isolation of free standing graphene in 2004, graphene research has experienced a
phenomenal growth. Due to its exceptional electronic, optical and mechanical properties, it is
believed to be the next wonder material for optoelectronics. The enhanced electrical
conductivity, combined with its high transparency in visible and near-infrared spectra,
enabled graphene to be an ideal low cost indium-tin oxide (ITO) substitute. Solution-
processed graphene combines the unique optoelectrical properties of graphene with large area
deposition and flexible substrates rendering it compatible with roll-to-roll manufacturing
methods. This work provides an overview of recent research progress in the application and
consequent physical-chemical properties of solution-processed graphene-based films as
transparent conductive electrodes (TCEs) in organic photovoltaic (OPV) cells. Reduced
graphene oxide (rGO) can be effectively utilized as the TCE in flexible OPVs, where the
brittle and expensive ITO is incompatible.
1
The prospects and future research trend in
graphene-based TCE are also discussed.
1
C. Petridis et al., Nanoscale Horizons, 2016, DOI: 10.1039/C5NH00089K.
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