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Microscopic origin of low frequency noise in MoS2 field-effect transistors
- Source :
- APL Materials, Vol 2, Iss 9, Pp 092515-092515-7 (2014)
- Publication Year :
- 2014
- Publisher :
- AIP Publishing LLC, 2014.
-
Abstract
- We report measurement of low frequency 1/f noise in molybdenum di-sulphide (MoS2) field-effect transistors in multiple device configurations including MoS2 on silicon dioxide as well as MoS2-hexagonal boron nitride (hBN) heterostructures. All as-fabricated devices show similar magnitude of noise with number fluctuation as the dominant mechanism at high temperatures and density, although the calculated density of traps is two orders of magnitude higher than that at the SiO2 interface. Measurements on the heterostructure devices with vacuum annealing and dual gated configuration reveals that along with the channel, metal-MoS2 contacts also play a significant role in determining noise magnitude in these devices.
- Subjects :
- Biotechnology
TP248.13-248.65
Physics
QC1-999
Subjects
Details
- Language :
- English
- ISSN :
- 2166532X
- Volume :
- 2
- Issue :
- 9
- Database :
- Directory of Open Access Journals
- Journal :
- APL Materials
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.f6db2a13484df6954661762e08dc72
- Document Type :
- article
- Full Text :
- https://doi.org/10.1063/1.4895955