Influence of Cu 2+ ions on the Photoluminescence of Eu 3+ ions in the Lead Borophosphate glasses for Solid-state Lasers and Photonic displays

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Year : 2026 | Volume : 04 | 02 | Page :
By

Sk. Intiyaz Begum,

K.S. Rudramamba,

K. Upendra Kumar,

B.M. Hussein,

N. Preethi,

M. Rami Reddy,

  1. Assistant Professor, Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Andhra Pradesh, India
  2. Assistant Professor, Department of Physics, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India
  3. Professor, Department of Physics, School of Applied Sciences, REVA University, Bangalore, India
  4. Assistant Professor, Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Andhra Pradesh, India
  5. Assistant Professor, Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Andhra Pradesh, India
  6. Assistant Professor, Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Andhra Pradesh, India

Abstract

Using the chemical formula 30 PbO- 30 B 2 O 3 – (39-x) P 2 O 5 -1 Eu 2 O 3 : x CuO, where x=0.1, 0.2, 0.3, 0.4, and 0.5 mol%, Eu 3+ -Cu 2+ ions co-doped Lead Borophosphate glasses were made by melt-quenching technique. We have performed physical properties, XRD, FT-IR, Optical Absorption, DTA, EPR and Photo Luminescence for these LBPEC1-LBPEC5 glasses to express in detail about the structural, optical and spectroscopic properties. The density values of LBPEC1-LBPEC5 glasses are showing a descending order while the dopant concentration is following the ascending order (i.e. 0.1-0.5 mol%). A broad hump is seen at 20 0 -30 0 in XRD spectra which declares the amorphous nature of networks glass matrix. The stretching, bending, symmetrical and non-symmetrical molecular bonds of host glass is observed with the help of FT-IR spectra. From the optical absorption spectra we noticed three bands, 7 F 0  5 L 6 , 7 F 0  5 D 2 and a broad peak at 834 nm with maximum intensity resembles the presence of Cu 2+ ions with respect to 2 B 1g  2 B 2g transition. Direct and In-direct band gaps of the network glass matrix have been decreased with the increase of dopant concentration. The thermal stability of the glass matrix is obtained in the rage of 237-252 0 c by differential thermal analysis (DTA). From the EPR spectra, we have evaluated the spin-Hamiltonion parameters. Visible photoluminescence spectra have been captured at excitation wavelength of 393 nm. Beyond 0.1 mol% of Eu 3+ -Cu 2+ ions, the quenching effect is seen, indicating that LBPEC1 is an optimal glass. For samples LBPEC1 to LBPEC5, the lifetime decay curves of visible emission at 612 nm are 1.57 to 1.74 ms at  exc = 393 nm. In the visible region, LBPEC1’s CIE colour coordinates are (0.636,0.346). These glasses exhibit red emission (initially from Eu 3+ ions) due to the 5 D 0  7 F 2 transition at 612 nm, suitable for Solid-state Lasers and photonics displays.

Keywords: Lead Borophosphate glasses, Cu 2+ ions, XRD, FT-IR Spectroscopy, Optical Absorption, Photo Luminescence

How to cite this article: Sk. Intiyaz Begum, K.S. Rudramamba, K. Upendra Kumar, B.M. Hussein, N. Preethi, M. Rami Reddy. Influence of Cu 2+ ions on the Photoluminescence of Eu 3+ ions in the Lead Borophosphate glasses for Solid-state Lasers and Photonic displays. International Journal of Optical Innovations & Research. 2026; 04(02):-.
How to cite this URL: Sk. Intiyaz Begum, K.S. Rudramamba, K. Upendra Kumar, B.M. Hussein, N. Preethi, M. Rami Reddy. Influence of Cu 2+ ions on the Photoluminescence of Eu 3+ ions in the Lead Borophosphate glasses for Solid-state Lasers and Photonic displays. International Journal of Optical Innovations & Research. 2026; 04(02):-. Available from: https://journals.stmjournals.com/ijoir/article=2026/view=258951

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Ahead of Print Subscription Review Article
Volume 04
02
Received 23/09/2026
Accepted 28/09/2026
Published 05/10/2026
Publication Time 12 Days

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