Erbium doped Barium Tungstate-Chitosan Nanocomposite: Luminescent Properties
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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JR_PPAM-3-2_001
تاریخ نمایه سازی: 26 شهریور 1403
Abstract:
Recently, there has been an increase in the ability to adjust the optical band gap and enhance the brightness of luminescence in nanophosphors that are used in light-emitting diodes and detectors. In this study, a flexible nanocomposite of erbium-doped barium tungstate (BaWO۴:Er-۱at.%) thin film was synthesized via co-precipitation method, and the structural and luminescence properties were investigated. The effect of excitation wavelength ( ) was studied on the optical properties of the synthesized composite at room temperature. Doped nanocomposite showed the best visible emission in the blue-green range at excitation wavelength =۲۵۰) of a xenon lamp and a strong violet emission under ۹۸۰ nm laser excitation. The XRD results verified the presence of BWO, in the chitosan composite structure. FESEM images showed that the prepared hybrid nanocomposite's surface was smooth, consistent, and compact; The Er:BWO particles exhibited a flower-like morphology. These findings demonstrate the potential for employing this nanocomposite in the fabrication of high-performance optoelectronic devices.
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Authors
Sanaz Alamdari
Department of Nanotechnology, Semnan University, Semnan, Iran P.O. Box: ۳۵۱۳۱-۱۹۱۱۱
Mohammad Hemmati
Faculty of Physics, Semnan University, P.O. Box:۳۵۱۹۵‑۳۶۳, Semnan, Iran
Majid Jafar Tafreshi
Faculty of Physics, Semnan University, P.O. Box:۳۵۱۹۵‑۳۶۳, Semnan, Iran
Mohammad Ehsani
Faculty of Physics, Semnan University, P.O. Box:۳۵۱۹۵‑۳۶۳, Semnan, Iran
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