Optical properties of bi‐doped epoxy novolak resin containing Ce, Dy, and Y ions

Abstract

In this article, we report on the optical properties of Bismuth doped Epoxy Novolak Resin (ENR) co‐doped with Dysprosium, Cerium, and Yttrium ions. The polymer layers containing 1.0 to 20.0 at % of Bismuth were fabricated by spin‐coating onto silicon or quartz substrates. The properties of the material were studied using several methods with special regards to its potential utilization in photonics devices. Transmission spectra were taken in the range from 350 to 1600 nm, while photoluminescence spectra around 1300 nm were recorded by using excitation of semiconductor lasers operating at 808 nm and at 980 nm (Ex = 250 mW). Optical properties of the samples were evaluated on the bases of the concentration of the Bismuth ions as well as on the concentrations of the co‐doping ions and showed close relations between concentration of the dopants and intensity of the luminescence band at 1300 nm. Our results proved that the Bismuth doped ENR has a strong potential for application in active photonics structures, as it has excellent optical properties and very easy and not demanding fabrication procedures. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

Broadband photoluminescence of Bi2O3–GeO2binary systems: glass, glass-ceramics and crystals

“…Since bismuth has a large ionic radius and strong polarity, that make it hard to dope into crystals with rigorous lattice structure, the emission of Bi-doped crystals is reported relatively late, and these crystals always have cations with large radius, such as RbPb 2 Cl 5 [17], α-BaB 2 O 4 [18], BaF 2 [19], Ba 2 P 2 O 7 [20] and CsI [21]. The NIR emission related to bismuth has also been demonstrated in other materials, such as glass-ceramics [22,23], zeolites [24,25], and even polymer layers [26,27].…”

Photoluminescence, semiconductive properties and theoretical calculation of a novel bismuth biimidazole compound

“…As we know, bismuthate and 2,2'‐biimidazole generally exhibit photoluminescence and many bismuthate compounds have been studied for their photoluminescent properties and potential application as photoluminescence‐emitting materials, for example in electrochemical displays, chemical sensors and light‐emitting diodes . Compound 1 might also display good photoluminescent properties.…”