Carrier-mobility improvement for pentacene OTFT with LaZrO dielectric by using Pd gate

Yuan Xiao Ma, Chuan Yu Han, P. T. Lai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Pentacene organic thin-film transistor (OTFT) using Pd as gate electrode is proposed, with high-k LaZrO as gate dielectric. The Pd film is prepared by e-beam evaporation and then the LaZrO film is deposited by reactive sputtering in Ar/O2 ambience followed by an annealing in N2 at 400 °C. The OTFT achieves an obvious increase in carrier mobility (to 1.02 cm2/V·s), as compared with its counterpart with heavily-doped silicon gate (0.23 cm2/V·s). Moreover, both samples with LaZrO gate dielectric show higher carrier mobility than a sample with La2O3 gate dielectric and Pd gate electrode.

Original languageEnglish
Title of host publication2016 13th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2016 - Proceedings
EditorsYu-Long Jiang, Ting-Ao Tang, Ru Huang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages974-977
Number of pages4
ISBN (Electronic)9781467397179
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event13th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2016 - Hangzhou, China
Duration: 25 Oct 201628 Oct 2016

Publication series

Name2016 13th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2016 - Proceedings

Conference

Conference13th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2016
Country/TerritoryChina
CityHangzhou
Period25/10/1628/10/16

Keywords

  • High-k dieletric
  • Metal gate
  • Organic thin-film transistor

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