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Cited by 400

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Influence of the Molecular Weight of Poly(3-hexylthiophene) on the Performance of Bulk Heterojunction Solar Cells

Schilinsky, Pavel, Asawapirom, Udom, Scherf, Ullrich, Biele, Markus, Brabec, Christoph J.·2005·Chemistry of Materials

Abstract

The efficiency of poly(3-hexylthiophene) (P3HT)/[6,6]-phenyl C 61 butyric acid methyl ester (PCBM) bulk heterojunction solar cells dramatically depends on the molecular weight of the donor polymer P3HT. Only for P3HTs with a number-average molecular weight ( M n ) of >10 000 have high power conversion efficiencies of >2.5% been reached. This behavior is caused by distinctly reduced charge carrier (hole) mobility in the donor phase of the devices built from lower M n P3HT samples. The reduced performance of such devices is related to a reduced intermolecular ordering (π-stacking) of the P3HT phase. These findings highlight the important role of the molecular weight in semicrystalline semiconducting polymers for the device performance and may help in the further development of novel, efficient, lower band gap donor polymers for photovoltaic applications.

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Crossref · 10.1021/cm047811c

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Metadata

Authors
Schilinsky, P., Asawapirom, U., Scherf, U., Biele, M., & Brabec, C. J.
Venue
Chemistry of Materials
Published
2005-03-23
Volume
17
Issue
8
Pages
2175-2180
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2019213642
Cited by
400
References
12
FWCI
23.83
Type
journal article
Language
en
Open access
closed

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