Article 2021 · 13 citations

An Investigation of Spray Deposited CdO Films and CdO/p-Si Heterojunction at Different Substrate Temperatures

Turgut, G., Aydogan, S., Yilmaz, M., Ozmen, A., Kacus, H.

Abstract

In this study, CdO films were successfully obtained by using a homemade chemical spray pyrolysis technique. The crystal structures of the CdO thin films improved due to an increase in the substrate temperature when the spray time was kept constant. Additionally, CdO film deposited at 250 degrees C exhibited amorphous crystal structure. The surface morphology of the samples was evaluated by scanning electron microscope (SEM) and it was observed that well-defined granules started to be clearly seen when the substrate temperature increased. Optical properties of CdO films were also investigated by using an ultraviolet-visible (UV-Vis) spectrophotometer, and the optical band gap of CdO varied from 2.57 eV to 2.73 eV with increasing substrate temperature. The electrical performance of the CdO films in the Au/CdO/p-Si device were determined by I-V measurements. According to the results, it was found that diode parameters depend on the changing properties of CdO in terms of the substrate temperature.

Keywords

OXIDE THIN-FILMS OPTICAL-PROPERTIES OPTOELECTRONIC PROPERTIES ELECTRICAL-PROPERTIES BARRIER INHOMOGENEITIES PHYSICAL-PROPERTIES PERFORMANCE FABRICATION PARAMETERS

WoS Categories

Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Mineralogy Mining & Mineral Processing

Citation

Journal: JOM
Year: 2021
Volume: 73
Issue: 2
Pages: 566-573
ISSN: 1047-4838
eISSN: 1543-1851
DOI: 10.1007/s11837-020-04514-9
WoS UID: WOS:000604240900005

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