Fluorescence and phosphorescence properties of new long-lasting phosphor Ba_4(Si_3O_8)_2:Eu^2+, Dy^3+
Year: 2011
Type: article
Abstract: A novel long-lasting phosphorescence (LLP) material Ba4(Si3O8)2:Eu2+, Dy3+ with high chemical stability was achieved successfully. Two emission centers (Eu (I) and Eu (II)) were found in Ba4(Si3O8)2 due to the substitution of Eu2+ in different Ba2+ sites. Both Eu (I) and Eu (II) had contribution to the afterglow process, however, the decay rate of Eu (I) was higher than that of Eu (II). Ba3.982(Si3O8)2: 0.008Eu2+, 0.01Dy3+ exhibited a long-lasting phosphorescence whose duration was more than 24 h. Through the analysis of the thermoluminescence (TL) curves, we found that Eu2+ single doped Ba4(Si3O8)2 has a possibility to be a kind of storage phosphor. This work provides a new and efficient candidate for LLP and storage materials.
Source: Optics Express
DOI: 10.1364/oe.19.004310
Authors: Yu Gong, Yuhua Wang, Yanqin Li, Xuhui Xu, Wei Zeng
Institution: Lanzhou University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W2013277670