Unexpected solid-solid intermixing in a bilayer of poly(3-hexylthiophene) and [6,6]-phenyl C61-butyric acidmethyl ester via stamping transfer

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The transferred bilayer active layer (P3HT/PCBM) prepared from a stamping transfer technique can be expected to undergo a sharp increase in the concentration profile at the P3HT/PCBM interface. However, the PCBM top layer is unexpectedly well blended with the P3HT bottom layer during the solid film stamping process with the help of the residual solvent. Auger spectroscopy confirmed that the bilayer have almost same composition from the anode side to the cathode side as the bulk-hetero junction film. This unique discovery can be applied in preparing concentration-graded BHJ film from controlling solid-solid intermixing behavior. (C) 2010 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2010-08
Language
English
Article Type
Article
Keywords

POLYMER SOLAR-CELLS

Citation

ORGANIC ELECTRONICS, v.11, no.8, pp.1376 - 1380

ISSN
1566-1199
DOI
10.1016/j.orgel.2010.05.018
URI
http://hdl.handle.net/10203/23809
Appears in Collection
CBE-Journal Papers(저널논문)
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