Eu2O3 doped bright orange-red luminescent lithium alumino-borate glasses for solid state lighting

被引：23
作者：
Pawar, P. P. [1 ]
Munishwar, S. R. [1 ]
Gedam, R. S. [1 ]
机构：
[1] Visvesvaraya Natl Inst Technol, Dept Phys, Nagpur 440010, Maharashtra, India
来源：
JOURNAL OF LUMINESCENCE | 2018年 / 200卷
关键词：
Glass; Rare earth; Eu2O3; Luminescence; Solid-state lighting; ELECTRONIC-ENERGY LEVELS; LANTHANIDE AQUO IONS; OPTICAL-PROPERTIES; SPECTROSCOPIC PROPERTIES; EMISSION PROPERTIES; BOROSILICATE GLASS; EU3+ IONS; DY3+; SM3+; PARAMETERS;
D O I：
10.1016/j.jlumin.2018.04.026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In present study, Eu2O3 doped Li2O:Al2O3:B2O3 glasses (LABE) were synthesized by melt quenching technique. Physical, thermal, structural and spectroscopic properties of prepared glasses have been investigated by various techniques. X-ray Diffraction (XRD) spectroscopy confirms the amorphous nature of glass samples. FTIR spectra show various structural groups present in the present glass system. Luminescence spectra exhibit emission bands in the visible region from 570 to 725 nm. The emission peaks are located at 577.5, 589.5, 613.5, 652, 701 nm attributed to the D-5(0) -> F-7(0), 1, 2, 3 and 4 transitions. The CIE chromaticity diagram discloses glass LABE-4 having colour coordinates x = 0.63, y = 0.34 shows highest emission intensity among all glass samples. The glass LABE-4 lying in the red region of CIE 1931 chromaticity diagram and has been found well suited for solid-state lighting application.
引用
收藏
页码：216 / 224
页数：9
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