High Electron Mobility and Ambipolar Transport in Organic Thin‐Film Transistors Based on a π‐Stacking Quinoidal Terthiophene | Zendy

Chesterfield R.J. | Zendy; Newman C.R. | Zendy; Pappenfus T.M. | Zendy; Ewbank P.C. | Zendy; Haukaas M.H. | Zendy; Mann K.R. | Zendy; Miller L.L. | Zendy; Frisbie C.D. | Zendy

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High Electron Mobility and Ambipolar Transport in Organic Thin‐Film Transistors Based on a π‐Stacking Quinoidal Terthiophene

Author(s) -

Chesterfield R.J.,

Newman C.R.,

Pappenfus T.M.,

Ewbank P.C.,

Haukaas M.H.,

Mann K.R.,

Miller L.L.,

Frisbie C.D.

Publication year - 2003

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200305200

Subject(s) - ambipolar diffusion , thin film transistor , materials science , organic semiconductor , stacking , transistor , electron mobility , optoelectronics , semiconductor , organic field effect transistor , terthiophene , thermal conduction , electron , polymer , field effect transistor , nanotechnology , organic chemistry , layer (electronics) , electrical engineering , chemistry , composite material , physics , engineering , voltage , quantum mechanics

Thin‐film transistors (TFTs) based on a new n‐channel organic semiconductor (DCMT; see Figure) are reported. An electron mobility as high as 0.2 cm 2 /V s was observed, as well as ambipolar TFT behavior. Variable temperature measurements reveal that electron conduction is activated, with a small activation energy of 35 ± 10 meV. These results demonstrate that quinoidal oligothiophenes are a promising new class of organic semiconductors for TFTs.

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