ELECTRICAL PROPERTIES OF THERMAL ANNEALED IN VACUUM SPRAY DEPOSITED AL-DOPED ZnO THIN FILMS
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Nature
Abstract
Al-doped ZnO thin films have been prepared by spray pyrolysis, which facilitates the incorporation of a higher percentage of dopant atoms. The vacuum thermally annealed at 420 °C temperature thin films have been characterized by X-ray diffraction (XRD), optical spectroscopy. Electrical conductivity and the Hall effect are investigated in the temperature interval (77–300) K. X-ray analysis results reveal that all the films are polycrystalline with a hexagonal wurtzite structure with a preferential orientation according to the direction (002) plane. Different characters of the temperature dependence of conductibility are observed in the Al-doped ZnO films vacuum thermally annealed at 420 °C temperature. In all cases, the conductivity, mobility carriers and carriers’ concentration of ZnO thin films obtained under Ar are higher than under O2 atmosphere, unless they are not doped. of your paper no longer than 300 words.
Description
Keywords
Al-doped ZnO thin films, spray pyrolysis, conductivity
Citation
POTLOG, Tamara, LUNGU, Ion, RAEVSCHI, Simion, BOTNARIUC, Vasile. et al. Electrical properties of thermal annealed in vacuum spray deposited al-doped zno thin films. In: IFMBE Proceedings. Ediția a 4-a, 18-21 septembrie 2019, Chişinău. Switzerland: Springer Nature Switzerland AG, 2020, pp. 83-87. ISBN 978-303031865-9.