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A novel blue-emitting Eu2+-doped Chlorine silicate phosphor with narrow-band for illumination and displays: structure and luminescence properties

Abstract

A novel silicate based phosphor Ba5SiO4Cl6: Eu2+(BSOC:Eu2+) has been successfully designed and investigated through solid-state method. The crystal structure, band structure, photoluminescence and cathodoluminescence characteristics were investigated in detail. Under excitation at 345 nm, a narrow blue emission band with peak at 440 nm (FWHM~32 nm) could be obserbed. Moreover, the BSOC:Eu2+ shows higher color purity when compared with commercial BAM phosphor. Under sustaining low voltage electron-beam excitation, the BSOC:Eu2+ phosphor exhibits blue emission with distinguished degradation resistance and perfect colour stability. By combing BSOC:Eu2+ blue phosphor with green and red phosphor, and a n-UV chip, pc-WLED with high color rendering index and low correlated color temperature was obtained. The results show that the BSOC:Eu2+ phosphor has a enormous application prospect in n-UV LED applications and FED devices.

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Publication details

The article was received on 02 Mar 2019, accepted on 10 Apr 2019 and first published on 12 Apr 2019


Article type: Paper
DOI: 10.1039/C9CE00294D
Citation: CrystEngComm, 2019, Accepted Manuscript

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    A novel blue-emitting Eu2+-doped Chlorine silicate phosphor with narrow-band for illumination and displays: structure and luminescence properties

    Q. Wei, X. Zhou, Z. Tang, X. Wang and Y. Wang, CrystEngComm, 2019, Accepted Manuscript , DOI: 10.1039/C9CE00294D

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