Optical absorption and transmittance spectra of 60B2O3–(40–𝑥)PbO–𝑥MCl2 and 50B2O3–(50–𝑥) PbO–𝑥MCl2 (M = Pb, Cd) (10 ≤ 𝑥 ≤ 20) glasses of varying composition were recorded in the UV-visible region. Various optical parameters such as optical energy gap (𝐸opt), Urbach energy (𝐸e), refractive index (𝑛0), optical dielectric constant (𝜀∝), and ratio of carrier concentration to the effective mass (𝑁/𝑚*) were determined. The variation of optical energy gap with increase in the concentration of PbCl2 or CdCl2 is discussed.
Volume 44, 2021
Continuous Article Publishing mode
Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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