Optical properties of sol-gel-derived PZT thin films

Gimtong T. Teowee, J. M. Boulton, S. Motakef, Donald R. Uhlmann, Brian J. Zelinski, Raymond Zanoni, M. Moon

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

18 Scopus citations

Abstract

A series of sol-gel derived PT-based films, including PT, PZ, PZT, PLT, PLZ and PLZT, was prepared on platinized Si, fused SiO2 and Corning 7059 substrates. These films were fired at 400 - 700 C for 30 mins. The phase assembly and development were dependent on the precursor chemistries, processing and choice of substrates. The presence of Zr impacted significantly on the crystallization behavior, PbO loss and cracking behavior of the films. Crystallization was severely retarded, especially in Zr-containing PZT films when deposited on amorphous substrates compared to crystalline Pt substrates. Amorphous and crystalline PZT films can be utilized for passive and active optical applications. Waveguiding was achieved in an amorphous PZT 53/47 and a crystalline PLT 28 films and gave attenuation losses of 1.0 and 1.4 dB/cm respectively which represent the lowest values reported to date. The optical properties of the films were investigated using ellipsometry, UV-VIS transmission spectroscopy and waveguide loss measurements. Depending on composition and processing conditions, PZT films (2500 A thick) with refractive indices of 1.60 to 2.33 and absorption edges of 2900 - 3100 A can be obtained. It was ascertained that the resulting interfacial reaction layers between the films and substrates affected considerably the optical properties of thinner films (< 2000 A).

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages236-248
Number of pages13
ISBN (Print)0819409316
StatePublished - Dec 1 1992
EventSol-Gel Optics II - San Diego, CA, USA
Duration: Jul 20 1992Jul 22 1992

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1758
ISSN (Print)0277-786X

Other

OtherSol-Gel Optics II
CitySan Diego, CA, USA
Period7/20/927/22/92

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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