Coupling top- and bottom-gate ZnO thin film transistors for low voltage, high gain inverter

Min Suk Oh, Jeong In Han, Kimoon Lee, Byoung H. Lee, Myung M. Sung, Seongil Im

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We reported on the fabrication of depletion-load-type ZnO thin film transistor (TFT) inverters coupling top- and bottom-gate TFTs that have 20 nm thin Al2O3 dielectrics grown by atomic layer deposition. Because the top-gate ZnO TFT showed a lower field-effect mobility of 0.1 cm 2 /V s than that of the bottom-gate device (2.4 cm2 /V s), we used the top- and bottom-gate structures as driver and load transistors, respectively, to adjust the transition voltage of the inverter with an identical width/length dimension for both TFTs. Our ZnO inverter demonstrated an excellent voltage gain of ∼41 at a low supply voltage of 5 V.

Original languageEnglish
Pages (from-to)H194-H196
JournalElectrochemical and Solid-State Letters
Volume13
Issue number6
DOIs
Publication statusPublished - 2010 Apr 27

Fingerprint

Thin film transistors
high gain
low voltage
transistors
Electric potential
thin films
electric potential
Atomic layer deposition
inverters
Transistors
atomic layer epitaxy
Fabrication
depletion
fabrication

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Oh, Min Suk ; Han, Jeong In ; Lee, Kimoon ; Lee, Byoung H. ; Sung, Myung M. ; Im, Seongil. / Coupling top- and bottom-gate ZnO thin film transistors for low voltage, high gain inverter. In: Electrochemical and Solid-State Letters. 2010 ; Vol. 13, No. 6. pp. H194-H196.
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Coupling top- and bottom-gate ZnO thin film transistors for low voltage, high gain inverter. / Oh, Min Suk; Han, Jeong In; Lee, Kimoon; Lee, Byoung H.; Sung, Myung M.; Im, Seongil.

In: Electrochemical and Solid-State Letters, Vol. 13, No. 6, 27.04.2010, p. H194-H196.

Research output: Contribution to journalArticle

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AU - Im, Seongil

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