Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells

Jenatsch, Sandra; Hany, Roland; Véron, Anna C.; Neukom, Martin; Züfle, Simon; Borgschulte, Andreas; Ruhstaller, Beat; Nüesch, Frank

doi:10.1021/jp5005314

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells
Authors:	Jenatsch, Sandra Hany, Roland Véron, Anna C. Neukom, Martin Züfle, Simon Borgschulte, Andreas Ruhstaller, Beat Nüesch, Frank
DOI:	10.1021/jp5005314
Published in:	The Journal of Physical Chemistry C
Volume(Issue):	118
Issue:	30
Page(s):	17036
Pages to:	17045
Issue Date:	2014
Publisher / Ed. Institution:	American Chemical Society
ISSN:	1932-7447 1932-7455
Language:	English
Subject (DDC):	540: Chemistry 621.3: Electrical, communications, control engineering
Abstract:	Bilayer organic solar cells based on trimethine cyanine donor and C60 acceptor materials have been fabricated by coating the trimethine dye from solution on molybdenum oxide (MoO3) anode buffer layer. The choice of deposition solvent drastically influences device performance, with 2,2,3,3-tetrafluoro-1-propanol (TFP) reducing the fill factor and power conversion efficiency of the device by 36 and 21%, respectively, as compared to chlorobenzene. In the case of TFP, extraction of photogenerated charge carriers by linearly increasing voltage (photo-CELIV) and capacitance-voltage analysis revealed the formation of a hole trapping zone at the molybdenum oxide interface which is also responsible for the S-shape current-voltage curve under white light irradiation. The transient charge extraction signal originating from trapped holes at the MoO3 interface could be clearly distinguished from the one relating to hole mobility in cyanine films using photo-CELIV measurements with varying delay times.
URI:	https://digitalcollection.zhaw.ch/handle/11475/6921
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Jenatsch, S., Hany, R., Véron, A. C., Neukom, M., Züfle, S., Borgschulte, A., Ruhstaller, B., & Nüesch, F. (2014). Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells. The Journal of Physical Chemistry C, 118(30), 17036–17045. https://doi.org/10.1021/jp5005314

Jenatsch, S. et al. (2014) ‘Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells’, The Journal of Physical Chemistry C, 118(30), pp. 17036–17045. Available at: https://doi.org/10.1021/jp5005314.

S. Jenatsch et al., “Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells,” The Journal of Physical Chemistry C, vol. 118, no. 30, pp. 17036–17045, 2014, doi: 10.1021/jp5005314.

JENATSCH, Sandra, Roland HANY, Anna C. VÉRON, Martin NEUKOM, Simon ZÜFLE, Andreas BORGSCHULTE, Beat RUHSTALLER und Frank NÜESCH, 2014. Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells. The Journal of Physical Chemistry C. 2014. Bd. 118, Nr. 30, S. 17036–17045. DOI 10.1021/jp5005314

Jenatsch, Sandra, Roland Hany, Anna C. Véron, Martin Neukom, Simon Züfle, Andreas Borgschulte, Beat Ruhstaller, and Frank Nüesch. 2014. “Influence of Molybdenum Oxide Interface Solvent Sensitivity on Charge Trapping in Bilayer Cyanine Solar Cells.” The Journal of Physical Chemistry C 118 (30): 17036–45. https://doi.org/10.1021/jp5005314.

Jenatsch, Sandra, et al. “Influence of Molybdenum Oxide Interface Solvent Sensitivity on Charge Trapping in Bilayer Cyanine Solar Cells.” The Journal of Physical Chemistry C, vol. 118, no. 30, 2014, pp. 17036–45, https://doi.org/10.1021/jp5005314.