Universität zu Köln

Steinmann, Vera, Kronenberg, Nils M., Lenze, Martin R., Graf, Steven M., Hertel, Dirk ORCID: 0000-0002-0421-9734, Meerholz, Klaus, Buerckstuemmer, Hannah, Tulyakova, Elena V. and Wuerthner, Frank (2011). Simple, Highly Efficient Vacuum-Processed Bulk Heterojunction Solar Cells Based on Merocyanine Dyes. Adv. Energy Mater., 1 (5). S. 888 - 894. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1614-6840

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Abstract

In order to be competitive on the energy market, organic solar cells with higher efficiency are needed. To date, polymer solar cells have retained the lead with efficiencies of up to 8%. However, research on small molecule solar cells has been catching up throughout recent years and is showing similar efficiencies, however, only for more sophisticated multilayer device configurations. In this work, a simple, highly efficient, vacuum-processed small molecule solar cell based on merocyanine dyes - traditional colorants that can easily be mass-produced and purified - is presented. In the past, merocyanines have been successfully introduced in solution-processed as well as vacuum-processed devices, demonstrating efficiencies up to 4.9%. Here, further optimization of devices is achieved while keeping the same simple layer stack, ultimately leading to efficiencies beyond the 6% mark. In addition, physical properties such as the charge carrier transport and the cell performance under various light intensities are addressed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Steinmann, Vera UNSPECIFIED UNSPECIFIED UNSPECIFIED Kronenberg, Nils M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lenze, Martin R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Graf, Steven M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hertel, Dirk UNSPECIFIED orcid.org/0000-0002-0421-9734 UNSPECIFIED Meerholz, Klaus UNSPECIFIED UNSPECIFIED UNSPECIFIED Buerckstuemmer, Hannah UNSPECIFIED UNSPECIFIED UNSPECIFIED Tulyakova, Elena V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wuerthner, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-488151
DOI:	10.1002/aenm.201100283
Journal or Publication Title:	Adv. Energy Mater.
Volume:	1
Number:	5
Page Range:	S. 888 - 894
Date:	2011
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	1614-6840
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ORGANIC PHOTOVOLTAIC CELLS; WORK FUNCTION; PERFORMANCE; DESIGN Multiple languages Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48815