The assessment of intrinsic carrier mobility in disordered polymeric semiconductors is critical for improving optoelectronic devices; however, it is currently limited. We examined how to accurately determine intrinsic, band mobility in doped, semicrystalline polymers using the field-effect and chemical double doping. In particular, chemical doping with a strong molecular oxidant effectively shifts the Fermi energy within the valence band, and field-effect modulation of the carrier density at the Fermi energy determines the field-effect mobility. Therefore, a band-like field-effect mobility exceeding 10 cm2 V−1 s−1 with a negative temperature coefficient was demonstrated for uniaxially aligned semicrystalline polymeric semiconductors, which indicates that the band description derived from the semiclassical Boltzmann transport model is applicable even to semicrystalline polymers with finite structural disorders.
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5 July 2021
Research Article|
July 08 2021
Band mobility exceeding 10 cm2 V−1 s−1 assessed by field-effect and chemical double doping in semicrystalline polymeric semiconductors Available to Purchase
Special Collection:
Organic and Hybrid Thermoelectrics
Masato Ito;
Masato Ito
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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Yu Yamashita
;
Yu Yamashita
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
2
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
, 1-1 Namiki, Tsukuba 305-0044, Japan
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Taizo Mori
;
Taizo Mori
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
2
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
, 1-1 Namiki, Tsukuba 305-0044, Japan
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Katsuhiko Ariga
;
Katsuhiko Ariga
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
2
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
, 1-1 Namiki, Tsukuba 305-0044, Japan
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Jun Takeya;
Jun Takeya
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
2
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
, 1-1 Namiki, Tsukuba 305-0044, Japan
3
AIST-Utokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST)
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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Shun Watanabe
Shun Watanabe
a)
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
3
AIST-Utokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST)
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
a)Author to whom correspondence should be addressed: [email protected]
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Masato Ito
1
Yu Yamashita
1,2
Taizo Mori
1,2
Katsuhiko Ariga
1,2
Jun Takeya
1,2,3
Shun Watanabe
1,3,a)
1
Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
2
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
, 1-1 Namiki, Tsukuba 305-0044, Japan
3
AIST-Utokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST)
, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the APL Special Collection on Organic and Hybrid Thermoelectrics.
Appl. Phys. Lett. 119, 013302 (2021)
Article history
Received:
March 30 2021
Accepted:
June 23 2021
Citation
Masato Ito, Yu Yamashita, Taizo Mori, Katsuhiko Ariga, Jun Takeya, Shun Watanabe; Band mobility exceeding 10 cm2 V−1 s−1 assessed by field-effect and chemical double doping in semicrystalline polymeric semiconductors. Appl. Phys. Lett. 5 July 2021; 119 (1): 013302. https://doi.org/10.1063/5.0052279
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