Synthesis and novel emission properties of Bi 3+ -doped Ca 2 BO 3 Cl phosphor for plant cultivation.

Autor: Khan MS; Department of Physics, R.T.M. Nagpur University, Nagpur, India., Mehare MD; Department of Physics, R.T.M. Nagpur University, Nagpur, India.; Department of Applied Physics, Priyadarshini College of Engineering, Nagpur, India., Parauha YR; Department of Physics, R.T.M. Nagpur University, Nagpur, India., Dhale SA; Department of Civil Engineering, Priyadarshini College of Engineering, Nagpur, India., Dhoble SJ; Department of Physics, R.T.M. Nagpur University, Nagpur, India.
Jazyk: angličtina
Zdroj: Luminescence : the journal of biological and chemical luminescence [Luminescence] 2023 Jan; Vol. 38 (1), pp. 4-11. Date of Electronic Publication: 2022 Dec 14.
DOI: 10.1002/bio.4418
Abstrakt: In the present work, a series of Bi 3+ -activated Ca 2 BO 3 Cl phosphors was synthesized using the conventional high-temperature solid-state reaction method. The crystal structure of the prepared sample was determined to be monoclinic with space group P21/c. Scanning electron microscopy (SEM) analysis demonstrated the surface morphology with aggregated particles and sizes in the nano range. The presence of vibrational features and their luminescence characteristics were studied using Fourier transform infrared spectroscopy and photoluminescence (PL) techniques, respectively. At the 486 nm excitation wavelength, the PL spectrum revealed a sharp emission centred at 732 nm that was attributed to the 3 P 1 → 1 S 0 transition of Bi 3+ . The emission spectra exhibited the highest emission intensity at 0.5 mol% Bi 3+ ion concentration, beyond this the emission intensity decreased due to the concentration quenching phenomenon attributed to multipolar interaction. The Commission Internationale de l'éclairage coordinates located at (0.7347, 0.2653) confirmed emission in the deep-red region with a colour purity of 99.98%. The obtained outcomes suggested that the reported material may be a promising candidate as a red-emitting phosphor for w-LEDs and plant growth applications.
(© 2022 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: