Enhanced Electrical Properties of P3HT:WO3 Hybrid Thin Film Transistors

Beyza Yedikardeş*, Fereshteh Ordokhani, Nihat Akkan, Ece Kurt, Nilgün Karatepe Yavuz, Esra Zayim, Mustafa Altun

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6 Atıf (Scopus)

Özet

In recent decades, conjugated polymers have been widely studied in organic electronics to produce low-cost transistors. Additionally, these polymers are doped with inorganic materials in order to improve the transistor performance in terms of mobility, on/off current ratio, and threshold voltage as well as to ease processability. In this study, we use various doping concentrations (0–50% in weight) of tungsten oxide (WO3) in poly(3-hexylthiophene) (P3HT), a well-studied organic semiconductor, to optimize the transistor performance. We treat spin-coated film of the hybrid P3HT:WO3 solution on hexamethyl disilazane (HMDS) as channels of commercial test chips including 20 transistors with their gold electrodes. Compared to using pristine P3HT, the proposed hybrid P3HT:WO3 formula which significantly improves the transistor performance. Almost 105 times larger mobilities, almost 10 times larger on/off current ratios, and nearly 22 V decrease in threshold voltages were achieved. It was also observed that the excess amount of WO3 doping leads to worse mobilities and on/off current ratios.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)2466-2475
Sayfa sayısı10
DergiJournal of Electronic Materials
Hacim50
Basın numarası4
DOI'lar
Yayın durumuYayınlandı - Nis 2021

Bibliyografik not

Publisher Copyright:
© 2021, The Minerals, Metals & Materials Society.

Finansman

This research was funded by the Scientific and Technological Research Council of Turkey (TUBITAK 1001 project) Nr. 116E250. Also, this work has been supported by the Scientific Research Projects realized at Istanbul Technical University, Nr. 41312. The authors would like to thank Istanbul Technical University and the Scientific and Technological Research Council of Turkey (TUBITAK) for financial support. Also, the authors would like to thank Asst. Prof. Dr. Şeref Sönmez for supplying WO powders. 3

FinansörlerFinansör numarası
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu116E250
Istanbul Teknik Üniversitesi41312

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