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Influence of the cyanine counter anions on a bi-layer solar cell performance

Published online by Cambridge University Press:  11 February 2013

Olga Malinkiewicz ,
Thais Grancha ,
Martijn Lenes ,
Hicham Brine ,
Alejandra Soriano  and
Henk J. Bolink
Olga Malinkiewicz
Affiliation:
Instituto de Ciencia Molecular, Universidad de Valencia, C/ Catedrático J. Beltrán 2, ES-46980 Paterna (Valencia), Spain.
Thais Grancha
Affiliation:
Instituto de Ciencia Molecular, Universidad de Valencia, C/ Catedrático J. Beltrán 2, ES-46980 Paterna (Valencia), Spain.
Martijn Lenes
Affiliation:
Instituto de Ciencia Molecular, Universidad de Valencia, C/ Catedrático J. Beltrán 2, ES-46980 Paterna (Valencia), Spain.
Hicham Brine
Affiliation:
Instituto de Ciencia Molecular, Universidad de Valencia, C/ Catedrático J. Beltrán 2, ES-46980 Paterna (Valencia), Spain.
Alejandra Soriano
Affiliation:
Instituto de Ciencia Molecular, Universidad de Valencia, C/ Catedrático J. Beltrán 2, ES-46980 Paterna (Valencia), Spain.
Henk J. Bolink*
Affiliation:
Instituto de Ciencia Molecular, Universidad de Valencia, C/ Catedrático J. Beltrán 2, ES-46980 Paterna (Valencia), Spain.
*
*Email: henk.bolink@uv.es
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Abstract

We present normal and inverted solution processed bi-layer solar cells using cationic cyanine dyes as the electron donor and a fullerene as the electron acceptor. The cells exhibit high open circuit voltages up to 1 volt showing the optimal alignment of donor and acceptor energy levels. We demonstrate the large effect that cyanine dye counter ions can have on the energetics of the solar cells and how the S-shaped current density vs. voltage (J-V) curves can be avoided.

Keywords

thin filmphotovoltaicdevices
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1493: Symposium E/H – Photovoltaic Technologies, Devices and Systems Based on Inorganic Materials, Small Organic Molecules and Hybrids , 2013 , pp. 275 - 280
Copyright
Copyright © Materials Research Society 2013 

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