Enhancing the electrical properties of vertical OFETs using a P(VDF-TrFE) dielectric layer
Document Type
Article
Publication Date
2-1-2020
Abstract
This work reports on the performance of vertical organic field effect transistors (VOFETs) fabricated using two dissimilar dielectric materials, namely poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) and poly(vinylidene fluoride) (PVDF). A comparison of the devices shows that integrating P(VDF-TrFE) enables the VOFET to exhibit significantly higher current of 0.10 mA with mobility of 6.874 x 10(-4) m(2) V-1 s(-1) as compared with PVDF, which has a current of 0.034 mA and mobility equal to 4.24 x 10(-5) m(2) V-1 s(-1). VOFET fabricated with a P(VDF-TrFE) dielectric layer shows a high current, high mobility, substantial ON/OFF ratio and low threshold voltage. The obtained results demonstrate that the VOFET fabricated with P(VDF-TrFE) dielectric layer allows smooth current flow between electrodes and appreciably improves the device characteristics.
Keywords
Organic field effect transistor, Vertical OFET, Lateral OFET, P(VDF-TrFE)
Divisions
PHYSICS
Funders
Universiti Malaya (FG041-17AFR),Ministry of Education, Malaysia (FP078-2018A)
Publication Title
Journal of Electronic Materials
Volume
49
Issue
2
Publisher
Springer
Publisher Location
ONE NEW YORK PLAZA, SUITE 4600, NEW YORK, NY, UNITED STATES