Charge Carrier Distribution in Low-Voltage Dual-Gate Organic Thin-Film Transistors

Dual-gate organic thin-film transistors (DGOTFTs), which exhibit better electrical properties, in terms of on-current and subthreshold slope than those of single-gate organic thin-film transistors (OTFTs) are promising devices for high-performance and robust organic electronics. Electrical behaviors of high-voltage (>10 V) DGOTFTs have been studied: however, the performance analysis in low-voltage DGOTFTs has not been reported because fabrication of low-voltage DGOTFTs is generally challenging. In this study, we successfully fabricated low-voltage (<5 V) DGOTFTs by employing thin parylene film as gate dielectrics and visualized the charge carrier distributions in low-voltage DGOTFTs by a simulation that is based on finite element method (FEM). The simulation results indicated that the dual-gate system produces a dual-channel and has excellent control of charge carrier density in the organic semiconducting layer, which leads to the better switching characteristics than the single-gate devices.

[1]  Ute Zschieschang,et al.  Low-voltage organic transistors with an amorphous molecular gate dielectric , 2004, Nature.

[2]  A. Bonfiglio,et al.  Combining inkjet printing and chemical vapor deposition for fabricating low voltage, organic field-effect transistors on flexible substrates , 2017 .

[3]  Michiel Steyaert,et al.  Analog Building Blocks for Organic Smart Sensor Systems in Organic Thin-Film Transistor Technology on Flexible Plastic Foil , 2012, IEEE Journal of Solid-State Circuits.

[4]  Jan Genoe,et al.  On the Extraction of Charge Carrier Mobility in High‐Mobility Organic Transistors , 2016, Advanced materials.

[5]  Fabrizio Torricelli,et al.  Charge transport in dual-gate organic field-effect transistors , 2012 .

[6]  Y. Bonnassieux,et al.  Charge Distribution and Contact Resistance Model for Coplanar Organic Field-Effect Transistors , 2013, IEEE Transactions on Electron Devices.

[7]  P. Blom,et al.  Local charge carrier mobility in disordered organic field-effect transistors , 2003 .

[8]  Henning Sirringhaus,et al.  Analysis of the contact resistance in staggered, top-gate organic field-effect transistors , 2007 .

[9]  Wim Dehaene,et al.  Unipolar Organic Transistor Circuits Made Robust by Dual-Gate Technology , 2011, IEEE Journal of Solid-State Circuits.

[10]  Wim Dehaene,et al.  Organic RFID transponder chip with data rate compatible with electronic product coding , 2010 .

[11]  T. Someya,et al.  Reduction in operation voltage of complementary organic thin-film transistor inverter circuits using double-gate structures , 2007 .

[12]  Brijesh Kumar,et al.  Single and dual gate OTFT based robust organic digital design , 2014, Microelectron. Reliab..

[13]  Henning Sirringhaus,et al.  Critical assessment of charge mobility extraction in FETs. , 2017, Nature materials.

[14]  Tunable contact resistance in double-gate organic field-effect transistors , 2012 .

[15]  Kris Myny,et al.  Dual‐Gate Thin‐Film Transistors, Integrated Circuits and Sensors , 2011, Advanced materials.

[16]  Kenjiro Fukuda,et al.  Vertically Stacked Complementary Organic Field‐Effect Transistors and Logic Circuits Fabricated by Inkjet Printing , 2016 .

[17]  A. Salleo.  Charge transport in polymeric transistors , 2007 .

[18]  Hiroyuki Matsui,et al.  Printed 5-V organic operational amplifiers for various signal processing , 2018, Scientific Reports.

[19]  Brijesh Kumar,et al.  Performance analysis of dual gate organic thin film transistor through analytical modeling , 2016, 2016 International Conference on Computing, Communication and Automation (ICCCA).

[20]  Ping Liu,et al.  Facile Inkjet-Printing Self-Aligned Electrodes for Organic Thin-Film Transistor Arrays with Small and Uniform Channel Length , 2010 .

[21]  Michiel Steyaert,et al.  A Fully Integrated $\Delta \Sigma$ ADC in Organic Thin-Film Transistor Technology on Flexible Plastic Foil , 2011, IEEE Journal of Solid-State Circuits.

[22]  Takao Someya,et al.  A large-area, flexible pressure sensor matrix with organic field-effect transistors for artificial skin applications. , 2004, Proceedings of the National Academy of Sciences of the United States of America.

[23]  H. Sirringhaus,et al.  Suppression of short-channel effects in organic thin-film transistors , 2006 .

[24]  Hiroyuki Matsui,et al.  Printed Organic Inverter Circuits with Ultralow Operating Voltages , 2017 .

[25]  G. Gelinck,et al.  Dual-gate organic thin-film transistors , 2005 .

[26]  Arash Takshi,et al.  Simulation of a dual gate organic transistor compatible with printing methods , 2008 .

[27]  Michiel Steyaert,et al.  Analog techniques for reliable organic circuit design on foil applied to an 18 dB single-stage differential amplifier , 2010 .

[28]  Tae-Jun Ha,et al.  High mobility top-gate and dual-gate polymer thin-film transistors based on diketopyrrolopyrrole-naphthalene copolymer , 2011 .

[29]  Hiroshi Kawaguchi,et al.  Control of threshold voltage of organic field-effect transistors with double-gate structures , 2005 .

[30]  Tsuyoshi Sekitani,et al.  Ultraflexible and ultrathin polymeric gate insulator for 2 V organic transistor circuits , 2016 .