Volume 3, Issue 4 (12-2021)
sjfst 2021, 3(4): 1-12 |
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Chahshouri F, Khani E, Savaloni H, Savari R. Nano-Structural Characteristics and Optical and Electrical Properties of Obliquely Deposited Manganese Oxide Thin Films. sjfst 2021; 3 (4) :1-12
URL: http://sjfst.srpub.org/article-6-129-en.html
URL: http://sjfst.srpub.org/article-6-129-en.html
School of Physics, College of Science, University of Tehran, North-Kargar Street, Tehran, Iran
Abstract: (1005 Views)
In this work, manganese oxide thin films as a graded helical square tower-like (terraced) sculptured thin films with 8, 9, and 10 arms were deposited on a glass substrate by oblique angle deposition (OAD) method. Structural and morphological characteristics of the produced samples were obtained through x-ray diffraction (XRD), atomic force microscopy (AFM), and field emission electron microscopy (FESEM) analyses. The optical and electrical properties of manganese oxide thin film were studied by Photoluminescence (PL), UV- visible (UV-VIS), and V-I measurement. The spectrophotometry analysis on both s-and p-polarized lights at 90° incident light angles carried out for obtaining the optical spectra of the samples. Then, it used to calculate refractive index, energy gaps, and absorption peaks. Photoluminescence spectra for MnO films showed a 2.31, 2.28, and 2.26 eV gap energy in 8, 9, and 10 arms. The electrical resistance measurements of these samples showed that the resistance has strongly dependent on the intensity and energy of the incident light. The electrical resistance of these samples was also investigated under green, blue, red, and light radiation with 100 watts/cm2 power density.
Keywords: MnO, Oblique angle deposition, Nano sculptured layer, Annealing, Optical and electrical behavior
Type of Study: Research |
Subject:
Materials Science (General)
Received: 2021/09/15 | Revised: 2021/10/19 | Accepted: 2021/10/30 | Published: 2021/12/25
Received: 2021/09/15 | Revised: 2021/10/19 | Accepted: 2021/10/30 | Published: 2021/12/25
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