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Title: Improving the radiation hardness of graphene field effect transistors

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4963782· OSTI ID:1341676

Ionizing radiation poses a significant challenge to the operation and reliability of conventional silicon-based devices. In this paper, we report the effects of gamma radiation on graphene field-effect transistors (GFETs), along with a method to mitigate those effects by developing a radiation-hardened version of our back-gated GFETs. We demonstrate that activated atmospheric oxygen from the gamma ray interaction with air damages the semiconductor device, and damage to the substrate contributes additional threshold voltage instability. Our radiation-hardened devices, which have protection against these two effects, exhibit minimal performance degradation, improved stability, and significantly reduced hysteresis after prolonged gamma radiation exposure. Finally, we believe this work provides an insight into graphene's interactions with ionizing radiation that could enable future graphene-based electronic devices to be used for space, military, and other radiation-sensitive applications.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Columbia Univ., New York, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Defense Threat Reduction Agency (DTRA) (United States)
Grant/Contract Number:
SC0012704; AC02-98CH10886; DMR-1420634; HDTRA1-11-0022
OSTI ID:
1341676
Alternate ID(s):
OSTI ID: 1328601
Report Number(s):
BNL-113404-2017-JA; R&D Project: CO031; KC0304030; TRN: US1701532
Journal Information:
Applied Physics Letters, Vol. 109, Issue 15; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (7)

A comprehensive study on the effects of gamma radiation on the physical properties of a two-dimensional WS 2 monolayer semiconductor journal January 2020
Gamma-ray radiation effects in graphene-based transistors with h-BN nanometer film substrates journal November 2019
Graphene-based saturable absorber and mode-locked laser behaviors under gamma-ray radiation journal January 2019
Radiation tolerance of two-dimensional material-based devices for space applications text January 2019
Radiation tolerance of two-dimensional material-based devices for space applications text January 2019
Radiation tolerance of two-dimensional material-based devices for space applications journal March 2019
Radiation tolerance of two-dimensional material-based devices for space applications text January 2018