Structure–Photoluminescence Relationship in Ce3+-Doped K5Y(P2O7)2 and Its Sensitization to Dy3+ with Enhanced White Light Emission DOI
Jiaojiao Wang, Zien Cheng, Rihong Cong

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(45), P. 21488 - 21498

Published: Oct. 30, 2024

From a fundamental point of view, the structure–photoluminescence relationship is vitally important for developing efficient phosphors and rationally improving their performances. In this work, Rietveld refinements on high-resolution powder X-ray diffraction (XRD) data were conducted to verify Ce3+ distribution in K5Y(P2O7)2 (KYPO). ions are located at both M1 M2 sites, with occupation factors 0.31(2) 0.19(2), respectively. Importantly, crystal field strength (CFS) stronger former site due larger bond valence sum. Correspondingly, emission can be deconvoluted into four Gaussian-type bands centered ∼353, ∼383, ∼343, ∼369 nm, where two belong latter assigned site. KYPO highly activator, optimal internal external quantum efficiencies 98.9 74.6%, respectively, was thus utilized sensitize Dy3+ emission. Indeed, energy transfer from confirmed by fluorescent decay curves Ce3+/Dy3+ codoped KYPO, mechanism supposed dominated dipole–dipole interactions. it pumped 310 nm LED chip emits bright white light. photoluminescence exhibits high resistance thermal quenching, further enhanced codoping Dy3+, i.e. intensity remains 96.3% 423 K.

Language: Английский

Ca3Lu2Si3O12:Ce3+, Tb3+: A dual-emitting garnet phosphor with high efficiency and thermo-sensitive for WLED and optical thermometer DOI

Jianyan Ding,

Xufeng Zhou,

Shanshan Ye

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Toward Recyclable, Luminescent Transparent Wood Film via Synergistic Light Responses of Lignocellulose and Phosphors for Plant Growth Lighting and Optical Thermometer DOI
Huan Chen, Junqing Chen, Ruiyu Mi

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract Regarding global energy scarcity issues, establishing sustainable plant production systems and promoting smart agriculture has become imperative. Herein, considering the important role played by lighting temperature sensing in agriculture, an innovative recyclable luminescent transparent wood film (LTWF) is constructed fabricated incorporating lignocellulose framework phosphors to establish a bifunctional platform including growing optical thermometer. Specifically, benefiting from synergistic light response of (blue emission 462 nm) phosphor (red 616 nm), tunable LTWF spectrum aligned with absorption spectra chlorophylls, carotenoids, photosensitive pigment Pr, demonstrating its potential for growth lighting. Moreover, distinct thermo‐responsive spectral signals based on dual are assessed thermal applications using fluorescence intensity ratio (FIR) techniques, yielding maximum absolute sensitivity (S ) relative r values 0.642%/K 0.447%/K at 423 K, respectively. Furthermore, can be recycled aqueous solution degraded microorganisms natural soil into nutrients, participating carbon cycle closed‐loop characteristics. Consequently, integrated features presents significant advance sensors.

Language: Английский

Citations

0
Multiple Applications of Sr8znin(1- M )Lu M (Po4)7:Eu2+/Mn2+ Through Thermal Stability Adjustment, Spectral Tuning, and Resonance Energy Transfer DOI
H.X. Guo, Rongmao Li,

Xingyang Peng

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Structure–Photoluminescence Relationship in Ce3+-Doped K5Y(P2O7)2 and Its Sensitization to Dy3+ with Enhanced White Light Emission DOI
Jiaojiao Wang, Zien Cheng, Rihong Cong

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(45), P. 21488 - 21498

Published: Oct. 30, 2024

From a fundamental point of view, the structure–photoluminescence relationship is vitally important for developing efficient phosphors and rationally improving their performances. In this work, Rietveld refinements on high-resolution powder X-ray diffraction (XRD) data were conducted to verify Ce3+ distribution in K5Y(P2O7)2 (KYPO). ions are located at both M1 M2 sites, with occupation factors 0.31(2) 0.19(2), respectively. Importantly, crystal field strength (CFS) stronger former site due larger bond valence sum. Correspondingly, emission can be deconvoluted into four Gaussian-type bands centered ∼353, ∼383, ∼343, ∼369 nm, where two belong latter assigned site. KYPO highly activator, optimal internal external quantum efficiencies 98.9 74.6%, respectively, was thus utilized sensitize Dy3+ emission. Indeed, energy transfer from confirmed by fluorescent decay curves Ce3+/Dy3+ codoped KYPO, mechanism supposed dominated dipole–dipole interactions. it pumped 310 nm LED chip emits bright white light. photoluminescence exhibits high resistance thermal quenching, further enhanced codoping Dy3+, i.e. intensity remains 96.3% 423 K.

Language: Английский

Citations

0