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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 4
BKCSDE 33(4)
April 20, 2012 

Photopatternable Conducting Polymer Nanocomposite with Incorporated Gold Nanoparticles for Use in Organic Field Effect Transistors
Sung Huh, Hyun Ho Choi, Kilwon Cho, Seung Bin Kim*
Organic field-effect transistors (OFETs), Conducting polymer, Gold nanoparticles, Crystallinity, Electrical characteristics
We investigated a new method for patterning organic field-effect transistors (OFETs) using a photopatternable conducting polymer nanocomposite, consisting of poly(3-hexylthiophene) (P3HT)-coated gold nanoparticles (AuNPs) that had been modified with a photoreactive cinnamate group, to form P3HT-AuNP-CI. We found that the addition of the cinnamate group to the nanoparticle surface assisted the preparation of a solventresistive semiconducting film and preserved the P3HT ordering, which was interrupted by Au-P3HT interactions, as well as provided UV-controllable electrical properties. The P3HT-AuNPs-CI films could be microscale-patterned via a UV crosslinking photoreaction, represented as a promising photopatternable semiconductor material for use in advanced applications, with tunable electrical properties for fabrication of sub-micron and microscale electronic devices.
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