Low-voltage organic transistors: The effect of a spin-coated smoothing layer on device performance

Chang Su Kim, Sung Jin Jo, Sung Won Lee, Woo Jin Kim, Hong Koo Baik, Se Jong Lee, D. K. Hwang, Seongil Im

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this paper, we have used organic/inorganic double gate dielectrics to enhance pentacene growth and dielectric properties for organic thin film transistors (OTFTs). The effects of poly-4-vinylphenol (PVP)/CeO 2-SiO2 composite double gate dielectrics on the electrical properties of OTFTs have been investigated. The interface of the gate dielectric and organic semiconductor is one of the physical factors which govern the electrical performance of OTFTs and also the growth of pentacene is largely determined by the surface characteristics of the gate dielectric. Here, when a spin-coated organic smoothing dielectric on an inorganic metal oxide dielectric is used, the growth of pentacene and dielectric properties are significantly improved. We were able to manufacture high-quality pentacene TFTs with a mobility of 1.14 cm2 (V-1 s-1) and an on/off ratio of 104 at operating voltages of less than 5 V.

Original languageEnglish
Article number006
Pages (from-to)1022-1025
Number of pages4
JournalSemiconductor Science and Technology
Volume21
Issue number8
DOIs
Publication statusPublished - 2006 Aug 1

Fingerprint

Gate dielectrics
smoothing
low voltage
Transistors
transistors
Thin film transistors
Electric potential
Dielectric properties
Semiconducting organic compounds
dielectric properties
thin films
Oxides
physical factors
Electric properties
Metals
organic semiconductors
metal oxides
pentacene
Composite materials
electrical properties

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Kim, Chang Su ; Jo, Sung Jin ; Lee, Sung Won ; Kim, Woo Jin ; Baik, Hong Koo ; Lee, Se Jong ; Hwang, D. K. ; Im, Seongil. / Low-voltage organic transistors : The effect of a spin-coated smoothing layer on device performance. In: Semiconductor Science and Technology. 2006 ; Vol. 21, No. 8. pp. 1022-1025.
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Low-voltage organic transistors : The effect of a spin-coated smoothing layer on device performance. / Kim, Chang Su; Jo, Sung Jin; Lee, Sung Won; Kim, Woo Jin; Baik, Hong Koo; Lee, Se Jong; Hwang, D. K.; Im, Seongil.

In: Semiconductor Science and Technology, Vol. 21, No. 8, 006, 01.08.2006, p. 1022-1025.

Research output: Contribution to journalArticle

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AU - Kim, Chang Su

AU - Jo, Sung Jin

AU - Lee, Sung Won

AU - Kim, Woo Jin

AU - Baik, Hong Koo

AU - Lee, Se Jong

AU - Hwang, D. K.

AU - Im, Seongil

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