This article is cited in 1 paper

Optical properties

Optical analysis using effective medium theory and finite element method to study the enhanced light absorption in porous BaMgAl$_{10}$O$_{17}$ : Eu$^{2+}$ phosphor

Ying-Lin Liang^a, Liang-Jun Yin^b, Hao-Van Bui^cd, Xian Jian^b, Guang Yang^e, Jie-Xiong Ding<sup>a

a</sup> School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, P.R.China
^b School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, P.R.China
^c Phenikaa Institute for Advanced Study, Phenikaa University, Hanoi, Vietnam
^d Phenikaa Research and Technology Institute, A&A Green Phoenix Group, Hanoi, Vietnam
^e National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, P. R. China

Abstract: The main objective of this paper is to reveal the mechanism of enhanced excitation light absorption in nano-pores structure BaMgAl$_{10}$O$_{17}$ : Eu$^{2+}$ (BAM) phosphor by optical analysis. The optical refractive index of the BAM was calculated from the reflectance spectra by Kramers–Kronig dispersion relation. And based on the effective medium theory, the anisotropic optical properties of porous BAM layer and its relations of absorption enhancement with porosity and thickness were investigated. A finite element simulation model was used for study the influence of pores size on optical properties. All the numerically evaluated results were match the experimental data.

Received: 30.01.2019
Revised: 11.03.2019
Accepted: 29.03.2019

Language: English

DOI: 10.21883/FTT.2019.08.47978.003

 English version: Physics of the Solid State, 2019, 61:8, 1450–1455

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