Abstract
Red emitting Li2CaSnO4: xEu3+ phosphors were successfully synthesized by the high-temperature solid-state method. The crystal structure, composite and luminescence properties (e.g. the excitation and emission spectra, fluorescent lifetimes, and CIE chromaticity coordinates) of the samples were investigated by X-ray diffraction (XRD), high-resolution transmission electron microscope (HRTEM), energy dispersive spectrometer (EDS) and spectral analysis technique. The emission spectra consist of the characteristic peak resultant to Eu3+ under the excitation of 395 nm and the dominant emission peak is at 621 nm (7F0→5L6). The optimal red emission was obtained through 4% Eu3+ doping. These new red Li2CaSnO4: Eu3+ phosphors have the potential application for white LEDs.
Funding source: Chongqing Science and Technology Bureau
Award Identifier / Grant number: CSTCCXLJRC201905, cstc2021jcyj-msxmX0493
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51574054
Funding source: Chongqing Municipal Education Commission
Award Identifier / Grant number: KJZD-M201901102
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: Unassigned
Funding source: Chongqing Municipal Education Commission
Award Identifier / Grant number: Unassigned
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work was supported by the National Natural Science Foundation of China (51574054), Chongqing Municipal Education Commission (KJZD-M201901102), Chongqing Science and Technology Bureau (cstc2021jcyj-msxmX0493).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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