Structural, Thermal and Luminescence Properties of AlN:Tm Thin Films Deposited on Silicon Substrate and Optical Fiber
- Autores: Muhammad Maqbool 1, Alruwaili A.2, Milinovic D.2, Khan T.3, Ali G.4, Ahmad I.5
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Afiliações:
- Department of Clinical and Diagnostic Sciences, the University of Alabama at Birmingham
- Department of Physics & Astronomy, Ball State University
- Department of Physics, Abdul Wali Khan University
- Physics Research Division, PINSTECH
- Abbottabad University of Science and Technology
- Edição: Volume 52, Nº 16 (2018)
- Páginas: 2039-2045
- Seção: Surfaces, Interfaces, and Thin Films
- URL: https://journals.rcsi.science/1063-7826/article/view/205291
- DOI: https://doi.org/10.1134/S1063782618160182
- ID: 205291
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Resumo
Thin films of AlN:Tm are deposited on a Si(111) and Si(100) substrates and optical fiber by rf magnetron sputtering method. 200–400 nm thick films are deposited at various temperatures to observe the effect of temperature on their structure and morphology. Liquid nitrogen is used to deposit films at low temperature of –196°C. An electric heater is used to grow films at 250–700°C range. The deposited films are analyzed for their structure and thermal stability using X-ray diffraction and thermogravimetric analysis. Films deposited at liquid nitrogen temperature are amorphous and those deposited at high temperature are crystalline. Average grain size, strain and interatomic distance of the crystalline films are calculated. The grain size and inter-atomic distance increase from 36.54 to 45.12 nm and from 0.2368 to 0.25 nm respectively. Photoluminescence of the films excited by 783 nm crystal laser shows an intense infrared emission from Tm+3 at 802 nm as a result of 3H4 → 3H6 transition.
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Sobre autores
Muhammad Maqbool
Department of Clinical and Diagnostic Sciences, the University of Alabama at Birmingham
Autor responsável pela correspondência
Email: mmaqbool@uab.edu
Estados Unidos da América, Birmingham, 35294
Amani Alruwaili
Department of Physics & Astronomy, Ball State University
Email: mmaqbool@uab.edu
Estados Unidos da América, Muncie, IN 47306
Dunja Milinovic
Department of Physics & Astronomy, Ball State University
Email: mmaqbool@uab.edu
Estados Unidos da América, Muncie, IN 47306
Tahirzeb Khan
Department of Physics, Abdul Wali Khan University
Email: mmaqbool@uab.edu
Paquistão, Mardan
Ghafar Ali
Physics Research Division, PINSTECH
Email: mmaqbool@uab.edu
Paquistão, Islamabad
Iftikhar Ahmad
Abbottabad University of Science and Technology
Email: mmaqbool@uab.edu
Paquistão, Khyber Pukhtoonkhwa