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Regulation of optical properties and investigation of energy transfer mechanisms in Tb3+/Eu3+ co-doped ZBSS glass.

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Title: Regulation of optical properties and investigation of energy transfer mechanisms in Tb3+/Eu3+ co-doped ZBSS glass.
Authors: Guo, Xu1 (AUTHOR), Lin, Hai1 (AUTHOR) linhaicust@sina.com, Cui, Jinming1 (AUTHOR), Li, Gaofeng1,2 (AUTHOR) ligaofeng8866@126.com, Li, Chun1 (AUTHOR), Yang, Weiling1 (AUTHOR)
Source: Ceramics International. May2026:Part A, Vol. 52 Issue 13, p22071-22083. 13p.
Subjects: Optical properties, Energy transfer, LED lighting, Light emitting diodes, Doped glasses, Glass, Glass melting, Dipole-dipole interactions
Abstract: This study employed a high-temperature melting method to prepare Tb3+/Eu3+ co-doped B 2 O 3 -ZnO-Sb 2 O 3 -SrO (ZBSS) glass systems. By modulating the Eu3+ concentration (0.3–1.5 mol%), the structural, optical properties, and energy transfer mechanisms were systematically investigated. XRD and FTIR confirmed all samples were single amorphous. Eu3+ enhanced glass network compactness, increasing density (3.2557–3.3128 g/cm3) and oxygen packing density (85.487–85.916 mol/L), both increasing with Eu3+ content. Under 377 nm excitation, the maximum ET efficiency from Tb3+ (5D 4 →7F 5 , 544 nm) to Eu3+ (5D 0 →7F 2 , 614 nm) was 26.96%, dominated by dipole-dipole interactions. Efficient ET realized continuous green-to-yellow emission tuning, with CIE coordinates (0.4023∼0.4632, 0.4488∼0.4802) and CCT 3139–3938 K (yellow range). The glass had quantum efficiency 30.48%–33.71% and excellent thermal stability (0.2122 eV activation energy), retaining 51.78% of room-temperature emission at 473 K. In conclusion, Tb3+/Eu3+ co-doped ZBSS glasses achieve tunable yellow emission via efficient ET, with high transparency and stability, promising for solid-state lighting and LEDs. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:This study employed a high-temperature melting method to prepare Tb3+/Eu3+ co-doped B 2 O 3 -ZnO-Sb 2 O 3 -SrO (ZBSS) glass systems. By modulating the Eu3+ concentration (0.3–1.5 mol%), the structural, optical properties, and energy transfer mechanisms were systematically investigated. XRD and FTIR confirmed all samples were single amorphous. Eu3+ enhanced glass network compactness, increasing density (3.2557–3.3128 g/cm3) and oxygen packing density (85.487–85.916 mol/L), both increasing with Eu3+ content. Under 377 nm excitation, the maximum ET efficiency from Tb3+ (5D 4 →7F 5 , 544 nm) to Eu3+ (5D 0 →7F 2 , 614 nm) was 26.96%, dominated by dipole-dipole interactions. Efficient ET realized continuous green-to-yellow emission tuning, with CIE coordinates (0.4023∼0.4632, 0.4488∼0.4802) and CCT 3139–3938 K (yellow range). The glass had quantum efficiency 30.48%–33.71% and excellent thermal stability (0.2122 eV activation energy), retaining 51.78% of room-temperature emission at 473 K. In conclusion, Tb3+/Eu3+ co-doped ZBSS glasses achieve tunable yellow emission via efficient ET, with high transparency and stability, promising for solid-state lighting and LEDs. [ABSTRACT FROM AUTHOR]
ISSN:02728842
DOI:10.1016/j.ceramint.2026.03.274