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High hole-mobility ...
High hole-mobility of rrP3HT in organic field-effect transistors using low-polarity polyurethane gate dielectric
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- Avila, Harold C. (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Phys, Rio De Janeiro, RJ, Brazil
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- Serrano, Pablo (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Phys, Rio De Janeiro, RJ, Brazil
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- Barreto, Arthur R. J. (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Phys, Rio De Janeiro, RJ, Brazil
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- Ahmed, Zubair (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Phys, Rio De Janeiro, RJ, Brazil
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- Gouvea, Cristol de P. (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Phys, Rio De Janeiro, RJ, Brazil;Natl Inst Metrol Qual & Technol INMETRO, Mat Metrol Div, BR-25250020 Duque De Caxias, RJ, Brazil
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- Vilani, Cecilia (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Chem & Mat Engn, Rio De Janeiro, RJ, Brazil
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- Capaz, Rodrigo B. (författare)
- Univ Fed Rio de Janeiro, Phys Inst, Rio De Janeiro, RJ, Brazil
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- Marchiori, Cleber (författare)
- Uppsala universitet,Materialteori
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- Cremona, Marco (författare)
- Pontifical Catholic Univ Rio de Janeiro, Dept Phys, Rio De Janeiro, RJ, Brazil
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(creator_code:org_t)
- ELSEVIER SCIENCE BV, 2018
- 2018
- Engelska.
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Ingår i: Organic electronics. - : ELSEVIER SCIENCE BV. - 1566-1199 .- 1878-5530. ; 58, s. 33-37
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report unusually high charge carrier mobilities for regioregular poly(3-hexyltiophene) (rrP3HT) in organic field-effect transistors (OFETs) using polyurethane (PU) as dielectric layer. Our devices display hole mobilities up to 1.37 cm(2)/V in the saturation regime and an ON/OFF current ratio higher than 10(3), operating at voltages as low as -10 V, with a high I-DS current of 1.5 mu A. We assign the measured high mobilities mainly to the low density of randomly-oriented electric dipoles at the semiconductor/dielectric interface, which leads to a narrow energy distribution of the electronic levels available for charge transport in rrP3HT. This is confirmed by experimental and theoretical techniques: (1) temperature-dependent transport measurements for extraction of disorder-induced distribution of electronic levels; (2) density functional theory (DFT) calculations of electric dipole moments of PU; and (3) liquid contact-angle measurements for the dipolar component of dielectric surface tension.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- OFETs
- Charge carrier mobility
- Organic semiconductor
- Poly-(3-hexylthiphene)
- Polyurethane
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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