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Stable organic thin-film transistors

Journal Article · · Science Advances
 [1];  [2];  [2];  [2];  [2]
  1. Georgia Inst. of Technology, Atlanta, GA (United States); CNEC/NC State
  2. Georgia Inst. of Technology, Atlanta, GA (United States)
+ Show Author Affiliations
Organic thin-film transistors (OTFTs) can be fabricated at moderate temperatures and through cost-effective solution-based processes on a wide range of low-cost flexible and deformable substrates. Although the charge mobility of state-of-the-art OTFTs is superior to that of amorphous silicon and approaches that of amorphous oxide thin-film transistors (TFTs), their operational stability generally remains inferior and a point of concern for their commercial deployment. We report on an exhaustive characterization of OTFTs with an ultrathin bilayer gate dielectric comprising the amorphous fluoropolymer CYTOP and an Al2O3:HfO2 nanolaminate. Threshold voltage shifts measured at room temperatureovertimeperiods upto5.9×105 s do not vary monotonically and remain below 0.2 V in microcrystalline OTFTs (mc-OTFTs) with field-effect carrier mobility values up to 1.6 cm2 V-1 s-1. Modeling of these shifts as a function of time with a double stretched-exponential (DSE) function suggests that two compensating aging mechanisms are at play and responsible for this high stability. The measured threshold voltage shifts at temperatures up to 75°C represent at least a one-order-of-magnitude improvement in the operational stability over previous reports, bringing OTFT technologies to a performance level comparable to that reported in the scientific literature for other commercial TFTs technologies.
Research Organization:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0002576
OSTI ID:
1438013
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 1 Vol. 4; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Dynamics of Threshold Voltage Shifts in Organic and Amorphous Silicon Field-Effect Transistors journal October 2007
Top-Gate Organic Field-Effect Transistors with High Environmental and Operational Stability journal January 2011
Stable Solution-Processed Molecular n -Channel Organic Field-Effect Transistors journal July 2012
Design of High-Mobility Diketopyrrolopyrrole-Based π-Conjugated Copolymers for Organic Thin-Film Transistors journal May 2015
Organic Field-Effect Transistors with a Bilayer Gate Dielectric Comprising an Oxide Nanolaminate Grown by Atomic Layer Deposition journal October 2016
Stable Organic Field-Effect Transistors for Continuous and Nondestructive Sensing of Chemical and Biologically Relevant Molecules in Aqueous Environment journal January 2014
High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives journal December 2016
A large-area, flexible pressure sensor matrix with organic field-effect transistors for artificial skin applications journal June 2004
Water-stable organic transistors and their application in chemical and biological sensors journal August 2008
49.1: Invited Paper: Emergent Oxide TFT Technologies for Next-Generation AM-OLED Displays journal June 2011
Very low bias stress in n-type organic single crystal transistors text January 2012
High-Performance Polymer-Small Molecule Blend Organic Transistors journal March 2009
High-Mobility Field-Effect Transistors Fabricated with Macroscopic Aligned Semiconducting Polymers journal February 2014
Suppression of threshold voltage shifts in organic thin-film transistors with bilayer gate dielectrics: Suppression of threshold voltage shifts in organic thin-film transistors journal February 2013
Thermal annealing effect on the crack development and the stability of 6,13-bis(triisopropylsilylethynyl)-pentacene field-effect transistors with a solution-processed polymer insulator journal May 2010
Organic RFID transponder chip with data rate compatible with electronic product coding journal July 2010
Bias-stress stability of low-voltage p-channel and n-channel organic thin-film transistors on flexible plastic substrates journal November 2014
Top-gate organic field-effect transistors fabricated on paper with high operational stability journal February 2017
Systematic Reliability Study of Top-Gate p- and n-Channel Organic Field-Effect Transistors journal February 2014
Stable Low-Voltage Operation Top-Gate Organic Field-Effect Transistors on Cellulose Nanocrystal Substrates journal February 2015
High mobility diketopyrrolopyrrole (DPP)-based organic semiconductor materials for organic thin film transistors and photovoltaics journal January 2013
Further considerations of non symmetrical dielectric relaxation behaviour arising from a simple empirical decay function journal January 1971
Bias‐stress‐induced stretched‐exponential time dependence of charge injection and trapping in amorphous thin‐film transistors journal March 1993
Organic thin-film transistor-driven polymer-dispersed liquid crystal displays on flexible polymeric substrates journal February 2002
Improved organic thin-film transistor performance using novel self-assembled monolayers journal February 2006
Organic small molecule field-effect transistors with Cytop™ gate dielectric: Eliminating gate bias stress effects journal February 2007
Low-voltage flexible organic complementary inverters with high noise margin and high dc gain journal January 2009
Very low bias stress in n -type organic single-crystal transistors journal March 2012
Unification of the time and temperature dependence of dangling-bond-defect creation and removal in amorphous-silicon thin-film transistors journal November 1998
Origin of the bias stress instability in single-crystal organic field-effect transistors journal August 2010
Reliability of low-temperature polysilicon thin-film transistors for flexible electronics application conference May 2016
Amorphous Oxide Semiconductor TFTs for Displays and Imaging journal November 2014
Amorphous silicon thin film transistor circuit integration for organic LED displays on glass and plastic journal September 2004
AC Bias-Temperature Stability of a-InGaZnO Thin-Film Transistors With Metal Source/Drain Recessed Electrodes journal March 2014
Reliability of low-temperature polysilicon thin-film transistors for flexible electronics application conference May 2016
High Performance Micro-Crystalline Silicon TFT Using Indirect Thermal Crystallization Technique journal October 2010
(Invited) All-Solid-State Batteries: A Challenging Route towards 3D Integration conference January 2010
High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives. text January 2017

Cited By (22)

Recent Efforts in Understanding and Improving the Nonideal Behaviors of Organic Field‐Effect Transistors journal August 2019
A Study on the Stability of Water-Gated Organic Field-Effect-Transistors Based on a Commercial p-Type Polymer journal October 2019
Roadmap to Gigahertz Organic Transistors journal November 2019
Recent Advances in the Bias Stress Stability of Organic Transistors journal October 2019
A Review of Vertical Organic Transistors journal January 2020
Flexible and Waterproof Resistive Random‐Access Memory Based on Nitrocellulose for Skin‐Attachable Wearable Devices journal November 2019
A Flexible Carbon Nanotube Sen‐Memory Device journal January 2020
High Signal‐to‐Noise Chemical Sensors Based on Compensated Organic Transistor Circuits journal August 2019
The Motivation for and Challenges to Scaling Down Organic Field‐Effect Transistors journal April 2019
Electrically Stable Organic Permeable Base Transistors for Display Applications journal September 2019
Display meets biology: A vision for ubiquitous healthcare platforms journal February 2019
Mobility of Air-Stable p-type Polythiophene Field-Effect Transistors Fabricated Using Oxidative Chemical Vapor Deposition journal January 2020
Repurposing DNA-binding agents as H-bonded organic semiconductors journal September 2019
Stability evaluation of ZnO nanosheet based source-gated transistors journal February 2019
Parylene copolymer gate dielectrics for organic field-effect transistors journal January 2019
Polysiloxane–poly(vinyl alcohol) composite dielectrics for high-efficiency low voltage organic thin film transistors journal January 2019
Charge carrier traps in organic semiconductors: a review on the underlying physics and impact on electronic devices journal January 2020
Tutorial: Organic field-effect transistors: Materials, structure and operation journal August 2018
A computational approach to study the optoelectronic properties of F -BODIPY derivatives at the bulk level for photovoltaic applications journal December 2019
Printed subthreshold organic transistors operating at high gain and ultralow power journal February 2019
Printed subthreshold organic transistors operating at high gain and ultralow power. text January 2019
A Review of Vertical Organic Transistors text January 2020

Figures / Tables (3)

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