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Influence of hydrogen annealing on the properties of AZO thin films

IULIAN IORDACHE1, ARCADIE SOBETKII2, CĂTĂLIN VIȚELARU3, ELENA CHIȚANU1,* , CRISTINA ANTONELA BANCIU1,* , GABRIELA IOSIF1, VIRGIL MARINESCU1, GABRIELA SBÂRCEA1, LEILA ACMOLA4, VALENTINA CĂPĂȚÎNĂ2

Affiliation

  1. National Institute for Research and Development in Electrical Engineering ICPE-CA Bucharest, 313 Splaiul Unirii, 030138, Bucharest 3, Romania
  2. SC MGM STAR CONSTRUCT SRL, 7 Pâncota Street, 022773, Bucharest, Romania
  3. National Institute for Research and Development for Optoelectronics INOE 2000, 409 Atomiștilor Street, 077125, Măgurele, Romania
  4. "Alexandru Ioan Cuza” National Military College Constanța, 80 Dezrobirii Street, 900234, Constanța, Romania

Abstract

The aim of this study was to obtain Al-doped ZnO (AZO) thin films by RF magnetron sputtering deposition with controllable structural, optical and electrical properties by adjusting the preparation process with a H2 post-annealing treatment. The XRD pattern indicates a the presence of single phase with hexagonal crystalline structure of ZnO. The AZO thin film obtained by 6 hours deposition process at a power density of ~7.5 W/cm2 exhibited the best transparent conductive oxide (TCO) electrical and optical properties, reaching electrical resistivity of 2.74·10-3 Ω·cm, and an 80% transparency in the visible range..

Keywords

AZO, Thin films, TCO, Magnetron sputtering.

Submitted at: May 3, 2022
Accepted at: June 7, 2022

Citation

IULIAN IORDACHE, ARCADIE SOBETKII, CĂTĂLIN VIȚELARU, ELENA CHIȚANU, CRISTINA ANTONELA BANCIU, GABRIELA IOSIF, VIRGIL MARINESCU, GABRIELA SBÂRCEA, LEILA ACMOLA, VALENTINA CĂPĂȚÎNĂ, Influence of hydrogen annealing on the properties of AZO thin films, Journal of Optoelectronics and Advanced Materials Vol. 24, Iss. 5-6, pp. 256-262 (2022)