Manufacture of p-type ZnO thin film by co-sputtering of Zn and Li 2CO3 targets simultaneously

Yang Ming Lu, Shu Yi Tsai, Shin Yi Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ZnO thin film has been the subject of much research in recent years due to its varied potential applications for optoelectronic devices. However, the p-type ZnO film conduction with low resistivity is difficult to achieve because of self-compensation effect of the opposite charge carriers in the material itself and low solubility of extrinsic doping acceptors. In this work, lithium-doped ZnO films were grown on glass substrates by RF reactive magnetron sputtering using Zn metal target with several Li2CO3 piece meals on it. This study examined the effect of Li content on the conduction and optical of ZnO thin films by r.f. magnetron sputtering. The structural, electrical and optical properties of the deposited films were strongly influenced by various Li content. The Li compositions of the ZnO thin films were determined by ICP-MS. Elemental depth profiles were performed by SIMS analysis. The structure characterization was used by GIAXRD measurement. Hot probes and Hall measurement were used to determine the resistivity, carrier density and mobility. The GIAXRD analysis indicated that the ZnO:Li films have (002) preferred orientation. The optical transmission spectra show a high transmittance (∼80%) in the visible region. The lowest resistivity of as-grown p-type ZnO:Li film is 4.72x10-1 ohm-cm. A p-type conductive behavior was confirmed by the Hall effect measurement for these ZnO:Li films with a carrier concentration of 2.47x1019cm-3 and hall mobility of 0.85 cm2/V-sec.

Original languageEnglish
Title of host publicationDesign, Development, and Applications of Engineering Ceramics and Composites - A Collection of Papers Presented at the 8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM 8
PublisherAmerican Ceramic Society
Pages265-271
Number of pages7
ISBN (Print)9780470889367
DOIs
Publication statusPublished - 2010
Event8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8 - Vancouver, BC, Canada
Duration: 2009 May 312009 Jun 5

Publication series

NameCeramic Transactions
Volume215
ISSN (Print)1042-1122

Other

Other8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8
CountryCanada
CityVancouver, BC
Period09-05-3109-06-05

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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