Reduction of hysteresis for carbon nanotube mobility measurements using pulsed characterization

Nanotechnology
David EstradaEric Pop

Abstract

We describe a pulsed measurement technique for suppressing hysteresis for carbon nanotube (CNT) device measurements in air, vacuum, and over a wide temperature range (80-453 K). Varying the gate pulse width and duty cycle probes the relaxation times associated with charge trapping near the CNT, found to be up to the 0.1-10 s range. Longer off times between voltage pulses enable consistent, hysteresis-free measurements of CNT mobility. A tunneling front model for charge trapping and relaxation is also described, suggesting trap depths up to 4-8 nm for CNTs on SiO2. Pulsed measurements will also be applicable for other nanoscale devices such as graphene, nanowires, or molecular electronics, and could enable probing trap relaxation times in a variety of material system interfaces.

References

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Citations

Dec 25, 2012·Nano Letters·Feng XiongEric Pop
Jan 26, 2012·ACS Nano·Aaron D FranklinWilfried Haensch
Jan 17, 2013·ACS Nano·Muhammad A WahabMuhammad A Alam
Jun 21, 2013·ACS Nano·Young Duck KimYun Daniel Park
Oct 16, 2010·Small·Eberhard Ulrich StützelRoman Sordan
Nov 21, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Yael Pascal-LevyYuval E Yaish
Aug 6, 2016·Nano Letters·Angelica AzcatlRobert M Wallace
Jan 1, 2015·Beilstein Journal of Nanotechnology·Hari Krishna Salila Vijayalal MohanLianxi Zheng
Feb 28, 2020·Physical Chemistry Chemical Physics : PCCP·Alexander TriesMathias Kläui
Mar 18, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·H T KimS W Hwang
Apr 4, 2017·Journal of Molecular Modeling·Mustafa U Kucukkal, Steven J Stuart
Jan 8, 2011·Nanotechnology·Marina Y TimmermansEsko I Kauppinen
Feb 9, 2021·ACS Applied Materials & Interfaces·Himani JawaSaurabh Lodha
Feb 28, 2019·Nano Letters·Sihan ChenWilliam P King
Jul 20, 2021·Advanced Materials·John S BulmerJames A Elliott
Oct 14, 2010·Chemical Reviews·Liangbing HuGeorge Grüner

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