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Enhanced luminescence intensity of Y2O3:Er3+ phosphor by using combustion preparation process and incorporating Gd3+ ions

Raunak Kumar Tamrakar, Kanchan Upadhyay, Suraj Butoliya, and P. B. Taunk

Department of Applied Physics, Bhilai Institute of Technology, Durg, India

 

E-mail: Kanchan.chemistry@gmail.com

Received: 8 January 2023  Accepted: 19 March 2023

Abstract:

Solution combustion synthesis method was imployed to synthesize Y2O3 codoped with Er3+ and Gd3+ phosphors. The X-ray diffraction pattern of the phosphor confirms presence of cubic phase with crystal size of around 12 nm. Electron microscopic techniques were used for further confirming the morphology and size of the phosphor. It was characterized for optical behaviour by recording the emission spectra under 275 nm UV excitation. The spectra have strong emission peak centred at 546 nm along with small peaks in red region centred at 611 and 617 nm. After doping of Gd3+ no variation in peak position was observed it alters the emission intensity. This increase in emission intensity is due to energy transfer between Gd3+ and Er3+ ion. The mechanism of photoluminescence behaviour has also been discussed. The proposed model can be extended (or applicable) to explain the fluorescence dynamics in other nanomaterial doped with Er3+ and Gd3+ under UV excitation.

Keywords: Gd3+ codoped; Combustion synthesis; XRD; Optical behaviour; Photoluminescence mechanism

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-023-02796-2

 

Chemical Papers 77 (8) 4469–4472 (2023)

Tuesday, July 23, 2024

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