新型Ce^(3+)掺杂亚磷酸锰开放骨架材料的合成与荧光性质  

Synthesis and Fluorescence Properties of Novel Ce^(3+)-doped Manganese Phosphite Open-framework Materials

作　　者：洪洋宇 邢宏珠 秉琦明 高旭文 齐斌 陈亚坤 苏钽 邹勃[4] HONG Yangyu;XING Hongzhu;BING Qiming;GAO Xuwen;QI Bin;CHEN Yakun;SU Tan;ZOU Bo(Laboratory of Theoretical and Computational Chemistry,Institute of Theoretical Chemistry,Jilin University,Changchun 130021,China;Department of Chemistry,Northeast Normal University,Changchun 130024,China;State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,China;State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学理论化学研究所理论与计算化学实验室,长春130021 [2]东北师范大学化学系,长春130024 [3]吉林大学化学学院,无机合成与制备化学国家重点实验室,长春130012 [4]吉林大学物理学院,超硬材料国家重点实验室,长春130012

出　　处：《高等学校化学学报》2021年第9期2725-2733,共9页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21673092);中国博士后科学基金(批准号:2017T100203,2018M631863);吉林省科学技术厅优秀青年人才基金(批准号:20190103125JH);无机合成与制备化学国家重点实验室(吉林大学)开放课题基金(批准号:2020-21)资助。

摘　　要：通过高通量实验方法制备了一系列新型的Ce^(3+)离子掺杂亚磷酸锰(NH_(4))_(4)[Mn_(4−x)Cex(HPO_(3))_(6)](简称JIS-10∶xCe^(3+))无机开放骨架材料.通过粉末X射线衍射(PXRD)谱图、扫描电子显微镜(SEM)、微量元素能谱(EDS)、X射线光电子能谱(XPS)、傅里叶变换红外(FTIR)光谱和光致发光(PL)光谱等手段对该材料进行了表征,并研究了Ce^(3+)离子掺杂浓度、反应温度和时间对晶体相变和发光性能的影响.结果表明,在波长260 nm的光激发下,Ce^(3+)离子在500 nm处有1个绿光发射带而Mn^(2+)离子在590 nm处有1个黄光发射带.调变JIS-10∶xCe^(3+)材料中Ce^(3+)离子的掺杂浓度发现,当x=0.06时,即Ce^(3+)离子的掺杂浓度较低时,样品的发射颜色为黄绿色,其CIE坐标为(0.38,0.48);当Ce^(3+)离子的掺杂浓度增加时,绿色发光带的增长快于黄色发光带的增长,从而调整发射颜色;在x=1.33时观察到最强的发射,浓度过高发生浓度猝灭.A series of novel Ce^(3+)-doped manganese phosphite(NH_(4))_(4)[Mn_(4−x)Cex(HPO_(3))_(6)](JIS-10∶Ce^(3+))inorganic open-framework materials was prepared under ionothermal conditions.The synthesized compounds were characterized by means of powder X-ray diffraction(PXRD),scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),X-ray photoelectron spectroscopy(XPS),Fourier transform infrared(FTIR)spectroscopy and photoluminescence(PL)spectroscopy.The influences of Ce^(3+)doping concentration,reaction temperatures and reaction time on the luminescence property were studied under 260 nm excitation.A green emission band at 500 nm of Ce^(3+)and a yellow emission band at 590 nm of Mn^(2+)were observed.At low doping level of 0.06 Ce^(3+),the phosphor had a yellow-green emission with the CIE coordinate of(0.38,0.48).The green emission band grew more dramatical than the yellow one when the doping concentration of Ce^(3+)ion was increased,leading to the tunable color-emission.The excitation competition between Ce^(3+)and Mn^(2+),as well as the energy transfer between these species were also studied.The strongest emission was observed at x=1.33,higher than which concentration quenching occurred.

关 键 词：高通量 离子热法 开放骨架材料 亚磷酸锰 铈掺杂 荧光粉 

分 类 号：O614[理学—无机化学]