Organic thin film transistors based on cyclohexyl-substituted organic semiconductors

Jason Locklin, Dawen Li, Stefan C B Mannsfeld, Evert Jan Borkent, Hong Meng, Rigoberto Advincula*, Zhenan Bao


研究成果: Article査読

128 被引用数 (Scopus)


Various cyclohexyl end-capped oligomeric semiconductors based on oligothiophene, oligothiophene-fluorene, and perylene diimide have been synthesized using Stille and Suzuki coupling. These materials exhibit increased solubility over their unsubstituted and hexyl-substituted counterparts and have been successfully employed as the active component in organic field-effect transistors. The morphology of vacuum-deposited films made with these oligomers has been investigated using atomic force microscopy (AFM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Field effect mobility as high as 0.17 cm 2/V·s was observed in fluorene-thiophene oligomers deposited at elevated substrate temperatures. With the series of materials, a correlation between the size of the endgroup with respect to the size of the inner semiconducting core of the molecule is found to be an important factor in orienting the molecules with their long axis perpendicular to the substrate surface in the thin film phase, and directly related to charge transport in these materials.

ジャーナルChemistry of Materials
出版ステータスPublished - 2005 6月 28

ASJC Scopus subject areas

  • 化学一般
  • 化学工学一般
  • 材料化学


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