Accession Number : AD0716707

Title :   Properties of Thin Films of Zinc Oxide Prepared by a Chemical Spray Method,

Corporate Author : DEFENCE STANDARDS LABS ADELAIDE (AUSTRALIA)

Personal Author(s) : Nobbs,J. McK. ; Gillespie,F. C.

Report Date : 01 DEC 1969

Pagination or Media Count : 12

Abstract : The electrical, optical and structural properties of thin films of zinc oxide in the thickness range 10-400 nm on glass and fuzed quartz substrates have been investigated. The films were prepared using a new chemical spray technique which permitted deposition on either insulating or conducting substrates with a high degree of control over both the dimensions of the coatings and their electrical properties. The effects of variations in film thickness and heat treatment in oxygen have been examined and an assessment has been made of the dimensions of the depletion layer and of the diffusion coefficient of interstitial zinc in zinc oxide. Films with thicknesses greater than 40 nm are stable for long periods and show a crystalline structure with a preferred orientation of the C-axis normal to the substrate. An amorphous phase together with crystallites is apparent in films less than 40 nm thick. However, these films are unstable and show crystallite growth after storage at room temperature. In general, the optical properties of the films correspond with those of films prepared by other methods. (Author)

Descriptors :   (*ZINC COMPOUNDS, *FILMS), (*DEPOSITION, ZINC COMPOUNDS), OXIDES, SPRAYS, SURFACES, OPTICAL PROPERTIES, ELECTRICAL CONDUCTIVITY, WAVE PROPAGATION, AUSTRALIA

Subject Categories : Ceramics, Refractories and Glass
      Coatings, Colorants and Finishes

Distribution Statement : APPROVED FOR PUBLIC RELEASE