Ternary Organic Solar Cells Incorporating 2D Materials
Minas M. Stylianakis,
a*
Dimitrios Konios,
a,b
Pavlos Tzourmpakis,
a,c
Constantinos Petridis
a,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 Chemistry, University of Crete, Heraklion 71003 Crete, Greece.
c
Department of Materials Science and Technology, University of Crete, Heraklion, 71003 Crete,
Greece
d
Department of Electronic Engineering Technological Educational Institute (TEI) of Crete, Chania
73132, Crete, Greece.
*
Email:
Although, the BHJ active layer based technology has been improved a lot in the last 20 years,
exceeding the PCEs threshold of 10%,
1
there are still some obstacles that should be
overcome. The introduction of OSCs based on a three component active medium blend
consisting of a donor, an acceptor and a third material has recently received increased
attention since it addresses the majority of the binary blend devices deficiencies.
2,3
The
ternary OSC concept can
a) increase the intensity and extend the absorption of the donor
material by demonstrating a complementary absorption spectra, b) provide more efficient
charge transfer at the donor:acceptor interfaces, c) provide more efficient charge transport
pathways, d) balance the bipolar mobility within the active layer, e) increase the crystallinity
of the donor material and e) enhance the energy transfer from the donor material.
4,5
In this study, we provide for the first time, after an implemented research, on the most recent
applications of graphene-based and other 2D materials as third components within the active
layer of solution processable ternary OSCs, fabricated by our research group.
6,7,8,9
This work
is mainly focused on the physical and engineering principles of these high performance
devices. Finally, we address and propose the possible research direction in the near future.
1
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3
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5
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6
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A, 2016, 4, 1020.
7
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and S. H. Anastasiadis, Nanoscale 2015, 7, 17827.
8
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9
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