Journal
APPLIED PHYSICS LETTERS
Volume 90, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2734387
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Using atomic force microscopy and grazing-incidence x-ray diffraction, the authors found that the use of volatile CH2Cl2 not only offers an advantage in minimizing regioregular poly(3-hexyl thiophene) (RR P3HT) film deposition time, but also directs the desirable parallel orientation of pi-pi stacking planes of RR P3HT with respect to solid substrates, for both spin and drop castings. The substrate temperature effects have been investigated to support claims that the substrate-induced crystallization of RR P3HT preseeds the parallel oriented crystals prior to spin casting, when the warm CH2Cl2 solution is loaded on a cold substrate held at room temperature. (c) 2007 American Institute of Physics.
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