Citation
Razali, Nur Ain Nabilah and Mustafa, Iskandar Shahrim and Noor Azman, Nurul Zahirah and Mohamed Kamari, Halimah and Abd Rahman, Amalina and Rosli, Khairiah and Taib, Noor Syamimi and Tajuddin, Nur Adilah
(2018)
The physical and optical studies of erbium doped borosilicate glass.
Journal of Physics: Conference Series, 1083 (1).
art. no. 012004.
pp. 1-6.
ISSN 1742-6588; EISSN: 1742-6596
Abstract
A glass series of erbium doped zinc borosilicate glass system was prepared by using the melt-quenching method. The absorption spectra revealed several bands at visible range which correspond to the following transitions (from the ground state); ⁴F5/2 + ⁴F7/2 + ²H11/2 + ⁴S3/2 + ⁴F9/2 + ⁴I9/2. The density and molar volume obtained increased and decreased respectively as the concentration of erbium oxide varied from 0 mol % to 1.0 mol %. Meanwhile, oxygen packing density (OPD) increased as the concentration of erbium oxide increased up to 3.0 mol % due to the build-up of bridging oxygen. The indirect band gap energy was achieved from 2.56 eV to 2.80 eV and the Urbach energy values lies between 0.15 eV and 0.61 eV.
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