Red emitting materials are critical to a wide range of optoelectronic devices, such as displays, lasers, and light-emitting diodes. Ongoing research efforts are focused on enhancing their emission efficiency and improving their thermal and mechanical stability to meet the demands of advanced device applications. Accordingly, a host glass network with the composition 50P2O5-20ZnO-20Bi2O3-10BaO (PZBB) was proposed and reinforced with 1 mol% of Ce3+, Nd3+, or Ce3+/Nd3+ ions to produce efficient red emission with high thermal and mechanical stability. Structural changes due to compositional variations were analyzed via X-ray diffraction (XRD), density measurements, and Fourier transform infrared (FTIR) spectroscopy. These analyses revealed a high network tightness with a very slight increase with the introduction of Ce3+, Nd3+, or Ce3+/Nd3+ ions. The produced host PZBB and developed PZBBCe3+, PZBBNd3+, or PZBBCe3+-Nd3+ glasses exhibited high thermal stability and elasticity, confirming their potential for use in optoelectronic device applications. Distinctive absorption bands of Ce3+ and Nd3+ ions were detected across the 200–2500 nm spectral range. Excitation of the PZBBCe3+, PZBBNd3+, or PZBBCe3+-Nd3+ glasses at 308 nm resulted in red emission at 619 & 639 nm, 616 & 677 nm, or 626 nm, respectively. Oscillator strength, Judd–Ofelt, and gain analyses confirm the suitability of PZBBCe3+, PZBBNd3+, and PZBBCe3+-Nd3+ for efficient red emission applications. Gain cross section analysis reveals that PZBBCe3+-Nd3+ glass supports broadband and dual-ion emission, with potential energy transfer enhancing Nd³⁺-dominated red emission output, while Ce3+ (PZBBCe3+) and Nd3+ (PZBBNd3+) singly doped glasses show broad and selective gain, respectively—highlighting their suitability for tunable and narrow-linewidth red emission applications. Overall, the PZBBCe3+, PZBBNd3+, or PZBBCe3+-Nd3+ glasses demonstrated high photoluminescence efficiency in the red region, along with excellent thermal stability and elasticity, making them promising candidates for single- and dual-wavelength optoelectronic applications.

Intense red emission from highly elastic and thermally stable phosphate glass doped with Ce³⁺, Nd³⁺, and Ce³⁺/Nd³⁺ ions

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2025年7月2日

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Najla Khaled Almulhem

摘要

Red emitting materials are critical to a wide range of optoelectronic devices, such as displays, lasers, and light-emitting diodes. Ongoing research efforts are focused on enhancing their emission efficiency and improving their thermal and mechanical stability to meet the demands of advanced device applications. Accordingly, a host glass network with the composition 50P₂O₅-20ZnO-20Bi₂O₃-10BaO (PZBB) was proposed and reinforced with 1 mol% of Ce³⁺, Nd³⁺, or Ce³⁺/Nd³⁺ ions to produce efficient red emission with high thermal and mechanical stability. Structural changes due to compositional variations were analyzed via X-ray diffraction (XRD), density measurements, and Fourier transform infrared (FTIR) spectroscopy. These analyses revealed a high network tightness with a very slight increase with the introduction of Ce³⁺, Nd³⁺, or Ce³⁺/Nd³⁺ ions. The produced host PZBB and developed PZBBCe³⁺, PZBBNd³⁺, or PZBBCe³⁺-Nd³⁺ glasses exhibited high thermal stability and elasticity, confirming their potential for use in optoelectronic device applications. Distinctive absorption bands of Ce³⁺ and Nd³⁺ ions were detected across the 200–2500 nm spectral range. Excitation of the PZBBCe³⁺, PZBBNd³⁺, or PZBBCe³⁺-Nd³⁺ glasses at 308 nm resulted in red emission at 619 & 639 nm, 616 & 677 nm, or 626 nm, respectively. Oscillator strength, Judd–Ofelt, and gain analyses confirm the suitability of PZBBCe³⁺, PZBBNd³⁺, and PZBBCe³⁺-Nd³⁺ for efficient red emission applications. Gain cross section analysis reveals that PZBBCe³⁺-Nd³⁺ glass supports broadband and dual-ion emission, with potential energy transfer enhancing Nd³⁺-dominated red emission output, while Ce³⁺ (PZBBCe³⁺) and Nd³⁺ (PZBBNd³⁺) singly doped glasses show broad and selective gain, respectively—highlighting their suitability for tunable and narrow-linewidth red emission applications. Overall, the PZBBCe³⁺, PZBBNd³⁺, or PZBBCe³⁺-Nd³⁺ glasses demonstrated high photoluminescence efficiency in the red region, along with excellent thermal stability and elasticity, making them promising candidates for single- and dual-wavelength optoelectronic applications.

Intense red emission from highly elastic and thermally stable phosphate glass doped with Ce3+, Nd3+, and Ce3+/Nd3+ ions

摘要

Intense red emission from highly elastic and thermally stable phosphate glass doped with Ce³⁺, Nd³⁺, and Ce³⁺/Nd³⁺ ions