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Article Dans Une Revue Advanced Functional Materials Année : 2020

Precise Extraction of Charge Carrier Mobility for Organic Transistors

Yong Xu
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Yun Li
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Songlin Li
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Huabin Sun
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  • PersonId : 1082433
Jing Wan
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Xinran Wang
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Yufeng Guo
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Yi Shi
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Yong-Young Noh
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  • PersonId : 1082436

Résumé

Unreliable mobility values, and particularly greatly overestimated values and severely distorted temperature dependences, have recently hampered the development of the organic transistor field. Given that organic field-effect transistors (OFETs) have been routinely used to evaluate the mobility, precise parameter extraction using the electrical properties of OFETs is thus of primary importance. This review examines the origins of the various mobilities that must be determined for OFET applications, the relevant extraction methods, and the data selection limitations, which help in avoiding conceptual errors during mobility extraction. For increased precision, the review also discusses device fabrication considerations, calibration of both the specific gate-dielectric capacitance and the threshold voltage, the contact effects, and the bias and temperature dependences, which must actually be handled with great care but have mostly been overlooked to date. This paper serves as a systematic overview of the OFET mobility extraction process to ensure high precision and will also aid in improving future research.
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Dates et versions

hal-02998279 , version 1 (23-11-2020)

Identifiants

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Yong Xu, Yun Li, Songlin Li, Francis Balestra, Gérard Ghibaudo, et al.. Precise Extraction of Charge Carrier Mobility for Organic Transistors. Advanced Functional Materials, 2020, Emerging Thin‐Film Transistor Technologies and Applications, 30 (20), pp.1904508. ⟨10.1002/adfm.201904508⟩. ⟨hal-02998279⟩
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