Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14649
Title: Ferroelectric polarization effects on the transport properties of graphene/PMN-PT field effect transistors
Authors: Jie, W
Hui, YY
Chan, NY
Zhang, Y
Lau, SP 
Hao, J 
Issue Date: 2013
Publisher: American Chemical Society
Source: Journal of physical chemistry C, 2013, v. 117, no. 26, p. 13747-13752 How to cite?
Journal: Journal of physical chemistry C 
Abstract: Single-layer graphene was transferred onto (1 -x)[Pb(Mg 1/3Nb2/3)O3]-x[PbTiO3] 0.3 (PMN-PT) substrate to investigate the transport properties of graphene-based field effect transistors (FETs) by ferroelectric gating. The graphene/PMN-PT FET exhibited p-type characteristics with a large memory window and an on/off current ratio of about 5.5 in air ambient conditions at room temperature. By prepoling the PMN-PT substrate, the FET showed a reduction in p-doping for the graphene/PMN-PT FET, implying the pre-polarization and the polarization reversal played an important part in the behaviors of graphene on PMN-PT. The observation of simultaneous rise in gate current with the dramatic transition in drain current suggested that the transport properties of graphene mainly stemmed from the coupling of the ferroelectric polarization to the charge carriers in graphene. The field effect mobility and the excess hole concentration were calculated to be about 4.52 × 103 cm 2 V-1 s-1 and 6.74 × 1012 cm-2, respectively. Furthermore, the sheet resistance showed high dependence on temperature and gate voltage, indicating metallic behaviors of graphene on PMN-PT. Additionally, the sheet resistance of graphene on the PMN-PT was much smaller than that on SiO2.
URI: http://hdl.handle.net/10397/14649
ISSN: 1932-7447
EISSN: 1932-7455
DOI: 10.1021/jp404350r
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

19
Last Week
0
Last month
0
Citations as of Sep 15, 2017

WEB OF SCIENCETM
Citations

19
Last Week
0
Last month
1
Citations as of Sep 14, 2017

Page view(s)

61
Last Week
4
Last month
Checked on Sep 18, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.