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Title: The comparison of transient photocurrent spectroscopy measurements of Pulsed Electron Deposited ZnO thin film for air and vacuum ambient conditions
Authors: Özdoğan, Mehmet
Yiğen, Serap
Çelebi, Cem
Utlu, Gökhan
Özdoğan, Mehmet
Yiğen, Serap
Çelebi, Cem
Izmir Institute of Technology. Physics
Keywords: Photocurrent
Pulsed Electron Deposition
Zinc oxide
Thin film
Atmospheric doping
Issue Date: 2019
Publisher: Elsevier Ltd.
Abstract: Photoconduction mechanism of ZnO thin films that produced by Pulsed Electron Deposition method is systematically investigated by taking Transient Photocurrent Spectroscopy measurements for different atmospheres including high vacuum and air environments. Response and recovery rates of photocurrent in the air are faster than the rates in high vacuum condition. The results in the presented work clearly indicate that the photoconduction of ZnO thin films with high surface-area-to-volume ratio are surface-related and mostly governed by adsorption/desorption of oxygen and water molecules in the atmosphere. Therefore, the high surface interaction tendency of ZnO surface with the atmosphere inevitably leads to charge transfer from surface to adsorbates and/or vice versa.
Description: utlu, gokhan/0000-0003-0105-7562; Ozdogan, Mehmet/0000-0002-2874-4787
WOS: 000467389900007
ISSN: 0040-6090
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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