一种青色长余辉发光材料Ba3Ca2(PO4)3ClEu2+ Ho3+的设计、制备与光学信息存储

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关键词：长余辉荧光粉； Eu2+ 掺杂； Ho3+ 掺杂；热释光；信息存储

中图分类号：0482.31 文献标识码：ADOI： 10.37188/CJL.20250258 CSTR：32170.14.CJL.20250258

Design，Preparation and Optical Information Storage of A Cyan Long-persistent Phosphor ， H03+

ZENG Wei，CHEN Wenxiao，ZHANG Yaxin，LIU Fang，WANG Jile，GOU Caixiang，KE Hongming （KeyLaboratoryofEcofunctionalPolymerMaterialsoftheMinistryofEducation，KeyLaboratoryofPolymerMaterialsof GansuProvince，CollegfhemistryndemicalEngineeing，NorthwestNoalUnivesityLanzhouoina） *Corresponding Author，E-mail： zengw@nwnu.edu.cn

Abstract：Cyan long-persistent luminescent materialsare relatively rare.In thiswork， Ba3Ca2（PO4）3 Cl waschosenas the host，andaphosphor with excellentcyanafterglow performance was successfully prepared via high-temperature solid-statereaction.Itsoptical information storagebehaviorwasalsoinvestigated.Thedetailedcrystal structureparametersof the host were determined through structural refinement，and its densityof states wascalculated. Under 349 nm excitation，both Eu2+ -dopedand Eu2+/Ho3+ co-doped samples exhibited bright cyan emission，with the emission spectra showing two distinct peaks at 455 nm and 493 nm，corresponding to the characteristic 4f65d1 4f′ （20 transitions of Eu2+atdifferent lattce sites.Compared with the singledoped samples，the introductionof Ho3+ created new traplevels inthesystem，significantly enhancing thecyanafterglow performance.Finally，theafterglowmechanismandoptical information storage behaviorof the material were furtheranalyzed，providing important reference for thestudy and application of cyanlong-persistent phosphors.

Keywords： long-persistent phosphor; Eu2+ -doped; Ho3+ -doped;thermoluminescence；optical information storage

1引言

料，它通过巧妙的储能“陷阱"设计，将光能暂时存储并缓慢释放。（剩余13535字）