Tuning the threshold voltage in electrolyte-gated organic field-effect transistors.

Proceedings of the National Academy of Sciences of the United States of America
Loïg KergoatMagnus Berggren

Abstract

Low-voltage organic field-effect transistors (OFETs) promise for low power consumption logic circuits. To enhance the efficiency of the logic circuits, the control of the threshold voltage of the transistors are based on is crucial. We report the systematic control of the threshold voltage of electrolyte-gated OFETs by using various gate metals. The influence of the work function of the metal is investigated in metal-electrolyte-organic semiconductor diodes and electrolyte-gated OFETs. A good correlation is found between the flat-band potential and the threshold voltage. The possibility to tune the threshold voltage over half the potential range applied and to obtain depletion-like (positive threshold voltage) and enhancement (negative threshold voltage) transistors is of great interest when integrating these transistors in logic circuits. The combination of a depletion-like and enhancement transistor leads to a clear improvement of the noise margins in depleted-load unipolar inverters.

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Citations

Oct 15, 2013·Advanced Materials·Jonathan RivnayGeorge G Malliaras
Mar 19, 2014·Proceedings of the National Academy of Sciences of the United States of America·Huiliang WangZhenan Bao
Jun 21, 2016·ACS Applied Materials & Interfaces·Dongyoon KhimYong-Young Noh
Oct 30, 2016·Proceedings of the National Academy of Sciences of the United States of America·Alexander GiovannittiJonathan Rivnay
Sep 21, 2016·Scientific Reports·Chang-Hyun KimMyung-Han Yoon
Mar 3, 2018·Advanced Materials·Sean E DorisRobert A Street
Jul 25, 2014·Physical Chemistry Chemical Physics : PCCP·Yong XuYong-Young Noh
Aug 14, 2018·Advanced Materials·Yong XuYong-Young Noh
Feb 2, 2018·Nature Communications·Mengmeng LiKamal Asadi
Aug 15, 2018·Nature Communications·Eleonora MacchiaLuisa Torsi
Feb 1, 2017·Nature Communications·Dan ZhaoXavier Crispin
Dec 12, 2019·Frontiers in Bioengineering and Biotechnology·Isacco GualandiErika Scavetta
Feb 5, 2014·Nano Letters·Brian CapozziLatha Venkataraman
Oct 15, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Margarita Rodríguez-LópezArnaldo Carrasquillo

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