TITLE

Device annealing effect in organic solar cells with blends of regioregular poly(3-hexylthiophene) and soluble fullerene

AUTHOR(S)
Kim, Youngkyoo; Choulis, Stelios A.; Nelson, Jenny; Bradley, Donal D. C.; Cook, Steffan; Durrant, James R.
PUB. DATE
February 2005
SOURCE
Applied Physics Letters;2/7/2005, Vol. 86 Issue 6, p063502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Here we report enhanced efficiency bulk heterojunction organic solar cells using blend films of regioregular poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM) that are subjected to a thermal annealing process. Blend films (P3HT:PCBM=1:1 by weight) were prepared using chlorobenzene and 1,2-dichlorobenzene in order to investigate the role of the solvent. Irrespective of the chosen solvent, the optimal device annealing temperature was found to be 140 °C. The highest power conversion efficiency, 3% under air mass 1.5 simulated solar illumination (100 mW/cm2), was achieved by device annealing at 140 °C for 15 min using blend films prepared from chlorobenzene (2.3% for 1,2-dichlorobenzene).
ACCESSION #
16345492

 

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