Investigation on photoluminescence and photochromism in Eu3+-doped (Ba1-xCax)TiO3

Lee, D. J.; Han, Jae-Ho; Lee, Y. S.

doi:10.1007/s40042-023-00988-3

J. Korean Phys. Soc.

2024

DOI: 10.1007/s40042-023-00988-3

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Investigation on photoluminescence and photochromism in Eu3+-doped (Ba1-xCax)TiO3

D. J. Lee,

Jae-Ho Han,

Y. S. Lee

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2024

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References 27 publications

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

Wi,

Jeong,

Lee

et al. 2024

Advanced Science

View full text Add to dashboard Cite

show abstract

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Investigation on photoluminescence and photochromism in Eu3+-doped (Ba1-xCax)TiO3

Cited by 1 publication

References 27 publications

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

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

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Investigation on photoluminescence and photochromism in Eu3+-doped (Ba1-xCax)TiO3

Cited by 1 publication

References 27 publications

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

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

Contact Info

Product

Resources

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

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