VTP as an Active Layer in a Vertical Organic Field Effect Transistor

Roslan, Nur Adilah and Abdullah, Shahino Mah and Halizan, Muhammad Zharfan Mohd and Bawazeer, Tahani M. and Alsenany, Nourah and Alsoufi, Mohammad S. and Abdul Majid, Wan Haliza and Supangat, Azzuliani (2018) VTP as an Active Layer in a Vertical Organic Field Effect Transistor. Journal of Electronic Materials, 47 (3). pp. 2184-2191. ISSN 0361-5235, DOI https://doi.org/10.1007/s11664-017-6031-6.

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Official URL: https://doi.org/10.1007/s11664-017-6031-6


In this letter, a p-type organic material from metal phthalocyanine (MPc) derivative, vanadyl 3,10,17,24-tetra-tert-butyl-1,8,15,22-tetrakis (dimethylamino)-29H,31H-phthalocyanine (VTP) has been utilized for fabrication of an organic electronic device. Prior to the fabrication of a vertical organic field effect transistor (VOFET), fundamental work in investigating the energy level of VTP has been done through determination of oxidation and reduction potentials. Energy levels of VTP were calculated based on the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of cyclic voltammetry (CV) and UV–vis analyses. Subsequently, the soluble VTP was employed as an active layer in VOFET with different thicknesses of 90.4 nm, 66.4 nm, and 52.1 nm. It is found that a device with 66.4 nm VTP’s thickness showed the optimum performance, by giving the maximum current density and lowest threshold voltage of around 37 mA/cm2 and 7.1 V, respectively. The effects of the channel thickness on the semi-transparent VOFET devices are explained in this work.

Item Type: Article
Funders: University of Malaya for the project funding under the University Malaya Research Grant (RP026C-15AFR), Ministry of Education Malaysia for the project funding under the Fundamental Research Grant Scheme (FP046-2015A)
Uncontrolled Keywords: channel thickness; energy band gap; vertical OFET; VTP
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 Apr 2019 09:00
Last Modified: 09 Apr 2019 09:00
URI: http://eprints.um.edu.my/id/eprint/20870

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