Photoluminescence of perovskite-type Cr3+-activated phosphors in the La–Al–Ti–O system
Source abstract
Abstract
Cr 3+ -activated near-infrared emitting phosphor has a potential application in plant growth and sensing 10 technologies.Herein, we synthesized near-infrared emitting La 1-x/3 Al 1-x-y Ti x O 3 : yCr 3+ phosphor by a solid-state 11 reaction.La 1-x/3 Al 1-x-y Ti x O 3 : yCr 3+ (x = 0.2, y = 0.003) showed the near-infrared emission at 751 nm with a full width 12 at half-maximum of 41 nm under 351 nm excitation.The internal and external quantum efficiencies were 54.4% 13 and 25.5%, respectively.The luminescence intensities at 150 of the La 1-x/3 Al 1-x-y Ti x O 3 : yCr 3+ (x = 0.1, 0.2, and 0.3, 14 y = 0.003) were 32%, 17%, and 3% of those at room temperature, respectively.The thermal quenching effect 15 strongly occurred with increasing the amount of Ti and it was related to the change in the absorbance edge of the 16 host material La 1-x/3 Al 1-x-y Ti x O 3 .17
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Microwave Dielectric Ceramics Synthesis · Inorganic Chemistry and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Advanced Phosphor Group, National Institute for Materials Science
Polycrystalline Optical Material Group, National Institute for Materials Science
References (34)
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