Near-UV excited green-emission enhancement by efficient energy transfer in Na1.8Mg0.9Si1.1O4:Ce3+,Tb3+ phosphor for solid-state lighting applications

Zhou, Han; Zhang, Hongzhi; Ye, Xiaofan; Tong, Xubo; Han, Jin; Zhang, Xinmin

doi:10.1016/j.optlastec.2022.107950

Cited by 10 publications

(1 citation statement)

References 45 publications

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“…In the realm of solid-state lighting, white light-emitting diodes (WLEDs) hold immense promise owing to their energy efficiency and environmentally benign attributes, favorable luminous efficacy, as well as their uncomplicated and easily fabricable structures. − These light sources find applications in diverse fields, such as plant growth illumination, signaling and indicator lamps, and flat-panel displays. − Nevertheless, conventional organic phosphor resin converters suffer from obvious drawbacks, including inadequate thermal stability, low thermal conductivity, and susceptibility to aging-induced degradation and phosphor corrosion. These issues collectively lead to reduced efficiency of white light emission from the WLEDs and shortened operational lifespan of the devices. − …”

Section: Introductionmentioning

confidence: 99%

Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance

Zhang,

Ye,

Zhao

et al. 2024

Inorg. Chem.

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Phosphor-in-glass represents a promising avenue for merging the luminous efficiency of high-quality phosphor and the thermal stability of a glass matrix. Undoubtedly, the glass matrix system and its preparation are pivotal factors in achieving high stability and preserving the original performance of embedded phosphor particles. In contrast to the wellestablished commercial Y 3 Al 5 O 12 :Ce 3+ oxide phosphor, red nitride phosphor, which plays a critical role in high-quality lighting, exhibits greater structural instability during the high-temperature synthesis of inorganic glasses. A telluride glass with a refractive index (RI = 2.15@615 nm) akin to that of nitride phosphor (∼2.19) has been devised, demonstrating high efficiency in photon utilization. The lower glass-transition temperature plays a crucial role in safeguarding phosphor particles against erosion resulting from exposure to high-temperature melts. Phosphor-in-glass retains 93% of the quantum efficiency observed for pure phosphor. The assembled white light-emitting diodes module has precise color tuning capabilities, achieving an optimal color rendering index of 93.7, a luminous efficacy of 80.4 lm/W, and a correlated color temperature of 5850 K. These outcomes hold potential for advancing the realm of inorganic package and high-quality white light illumination.

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Section: Introductionmentioning

confidence: 99%

Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance

Zhang,

Ye,

Zhao

et al. 2024

Inorg. Chem.

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Optoelectronic Synapse Behaviors in Tb³⁺ and Al³⁺ Co‐Doped CaSnO₃ with Long‐Persistent Luminescence

Wi,

Jeong,

Lee

et al. 2024

Advanced Science

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Neuromorphic computation draws inspiration from the remarkable features of the human brain including low energy consumption, parallelism, adaptivity, cognitive functions, and learning ability. These qualities hold the promise of unlocking groundbreaking computational techniques that surpass the limitations of traditional computing systems. This paper reports a remarkable photo‐synaptic behavior in the field of rare earth ion‐doped luminescent oxides by using long‐persistent luminescence (LPL). This system utilizes electron trap states to regulate the synaptic behavior, operating through a fundamentally different mechanism from that of electronic‐based synaptic devices. To realize this strategy, Tb3+ doped CaSnO3, which shows a significant LPL property under UV‐light excitation, is prepared. The luminescent system shows key neuromorphic characteristics such as paired‐pulse facilitation, pulse‐number/timing dependent potentiation, and pulse‐number/timing dependent short‐ to long‐term plasticity transition, which are required for realizing synaptic devices. This feature expands the way for advanced neuromorphic technologies employing light stimuli.

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SrWO4: Er3+; an efficient green phosphor for LED and optical thermometry applications

Gopal

Manam

2022

J Mater Sci: Mater Electron

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Near-UV excited green-emission enhancement by efficient energy transfer in Na1.8Mg0.9Si1.1O4:Ce3+,Tb3+ phosphor for solid-state lighting applications

Cited by 10 publications

References 45 publications

Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance

Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance

Optoelectronic Synapse Behaviors in Tb³⁺ and Al³⁺ Co‐Doped CaSnO₃ with Long‐Persistent Luminescence

SrWO4: Er3+; an efficient green phosphor for LED and optical thermometry applications

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Near-UV excited green-emission enhancement by efficient energy transfer in Na1.8Mg0.9Si1.1O4:Ce3+,Tb3+ phosphor for solid-state lighting applications

Cited by 10 publications

References 45 publications

Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance

Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance

Optoelectronic Synapse Behaviors in Tb3+ and Al3+ Co‐Doped CaSnO3 with Long‐Persistent Luminescence

SrWO4: Er3+; an efficient green phosphor for LED and optical thermometry applications

Contact Info

Product

Resources

About

Optoelectronic Synapse Behaviors in Tb³⁺ and Al³⁺ Co‐Doped CaSnO₃ with Long‐Persistent Luminescence