Compact modeling of organic transistors with multi-finger contacts

Afra Al Ruzaiqi, Boyko Nikolov, Lawrence R. Chen, Helena Gleskova

Research output: Contribution to conferenceProceeding

Abstract

Organic thin-film transistors (OTFTs) with multi-finger contacts based on dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thio-phene (DNTT) exhibit near-zero turn-on voltage, hysteresis-free behavior, and high transconductance of 30-80 μA at VDS = VGS = −2 V. [1] In addition, common-source amplifiers based on such transistors deliver voltage gain even when the supply voltage is limited to 5 V, making them attractive for flexible/wearable analog sensors. This paper presents the results of compact modeling, implemented in Matlab Simulink, applied to such transistors. The measured transistor transfer characteristics are used to extract the parameters for the semi-empirical model. The model was validated in 3 ways on 8 OTFTs with varied geometries and substrates (glass or PEN). The validation included calculations of (a) transistor output characteristics, (b) a.c. drain currents for 1 Hz sinusoidal gate voltages, and (c) output voltages of the common-source amplifier, and their comparison to the measured data.

Conference

ConferenceIEEE International Conference on Flexible and Printable Sensors and Systems
Abbreviated titleIEEE FLEPS 2019
CountryUnited Kingdom
CityGlasgow
Period7/07/1910/07/19
Internet address

Fingerprint

Transistors
Electric potential
Thin film transistors
Drain current
Transconductance
Hysteresis
Glass
Geometry
Sensors
Substrates

Keywords

  • organic thin-film transistor
  • compact model
  • high transconductance
  • low operating voltage

Cite this

Al Ruzaiqi, A., Nikolov, B., Chen, L. R., & Gleskova, H. (2019). Compact modeling of organic transistors with multi-finger contacts. IEEE International Conference on Flexible and Printable Sensors and Systems , Glasgow, United Kingdom.
Al Ruzaiqi, Afra ; Nikolov, Boyko ; Chen, Lawrence R. ; Gleskova, Helena. / Compact modeling of organic transistors with multi-finger contacts. IEEE International Conference on Flexible and Printable Sensors and Systems , Glasgow, United Kingdom.3 p.
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Al Ruzaiqi, A, Nikolov, B, Chen, LR & Gleskova, H 2019, 'Compact modeling of organic transistors with multi-finger contacts' IEEE International Conference on Flexible and Printable Sensors and Systems , Glasgow, United Kingdom, 7/07/19 - 10/07/19, .

Compact modeling of organic transistors with multi-finger contacts. / Al Ruzaiqi, Afra; Nikolov, Boyko; Chen, Lawrence R.; Gleskova, Helena.

2019. IEEE International Conference on Flexible and Printable Sensors and Systems , Glasgow, United Kingdom.

Research output: Contribution to conferenceProceeding

TY - CONF

T1 - Compact modeling of organic transistors with multi-finger contacts

AU - Al Ruzaiqi, Afra

AU - Nikolov, Boyko

AU - Chen, Lawrence R.

AU - Gleskova, Helena

N1 - © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2019/7/10

Y1 - 2019/7/10

N2 - Organic thin-film transistors (OTFTs) with multi-finger contacts based on dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thio-phene (DNTT) exhibit near-zero turn-on voltage, hysteresis-free behavior, and high transconductance of 30-80 μA at VDS = VGS = −2 V. [1] In addition, common-source amplifiers based on such transistors deliver voltage gain even when the supply voltage is limited to 5 V, making them attractive for flexible/wearable analog sensors. This paper presents the results of compact modeling, implemented in Matlab Simulink, applied to such transistors. The measured transistor transfer characteristics are used to extract the parameters for the semi-empirical model. The model was validated in 3 ways on 8 OTFTs with varied geometries and substrates (glass or PEN). The validation included calculations of (a) transistor output characteristics, (b) a.c. drain currents for 1 Hz sinusoidal gate voltages, and (c) output voltages of the common-source amplifier, and their comparison to the measured data.

AB - Organic thin-film transistors (OTFTs) with multi-finger contacts based on dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thio-phene (DNTT) exhibit near-zero turn-on voltage, hysteresis-free behavior, and high transconductance of 30-80 μA at VDS = VGS = −2 V. [1] In addition, common-source amplifiers based on such transistors deliver voltage gain even when the supply voltage is limited to 5 V, making them attractive for flexible/wearable analog sensors. This paper presents the results of compact modeling, implemented in Matlab Simulink, applied to such transistors. The measured transistor transfer characteristics are used to extract the parameters for the semi-empirical model. The model was validated in 3 ways on 8 OTFTs with varied geometries and substrates (glass or PEN). The validation included calculations of (a) transistor output characteristics, (b) a.c. drain currents for 1 Hz sinusoidal gate voltages, and (c) output voltages of the common-source amplifier, and their comparison to the measured data.

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KW - low operating voltage

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Al Ruzaiqi A, Nikolov B, Chen LR, Gleskova H. Compact modeling of organic transistors with multi-finger contacts. 2019. IEEE International Conference on Flexible and Printable Sensors and Systems , Glasgow, United Kingdom.