Transition between band and hopping transport in polymer field-effect transistors.
basic_science · Level V
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- Record sourced from PubMed, PMID 25339112.
- Also identified by DOI 10.1002/adma.201403767.
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Abstract
Hall effect and slightly negative temperature dependence of the mobility in polymeric transistors are demonstrated. The semiconductor channel is based on a polycyclopentadithiophene-benzothiadiazole (CDT-BTZ) donor-acceptor copolymer film whose chain direction is oriented by mechanical compression at the surface of an ionic liquid. The mobility is 5.6 cm(2) V(-1) s(-1) at room temperature, and is further improved to 6.7 cm(2) V(-1) s(-1) at 260 K.