CAJ | 학술논문

采用高温固相法在1 000 ℃下煅烧6 h合成了ScVO4:Eu3+,Bi3+,Al3+荧光粉. 使用X射线粉末衍射仪和扫描电镜对样品的结构和形貌进行了表征,采用荧光分光光度计研究了样品的发光性质. 用315 nm波长激发ScVO4:Eu3+,Bi3+,Al3+样品时,样品在590~620 nm范围内发射强烈的橙红光,最大发射峰位于615 nm. 少量Al3+的掺入可以增强ScVO4:Eu3+,Bi3+荧光粉的发光,而掺入过量Al3+时会使ScVO4:Eu3+,Bi3+荧光粉的发光变弱. 当Al3+在ScVO4:Eu3+,Bi3+中的摩尔分数达到4%时,样品的发光最强且其发光强度较未掺杂Al3+的样品提高了约30%.
채용고온고상법재1 000 ℃하단소6 h합성료ScVO4:Eu3+,Bi3+,Al3+형광분. 사용X사선분말연사의화소묘전경대양품적결구화형모진행료표정,채용형광분광광도계연구료양품적발광성질. 용315 nm파장격발ScVO4:Eu3+,Bi3+,Al3+양품시,양품재590~620 nm범위내발사강렬적등홍광,최대발사봉위우615 nm. 소량Al3+적참입가이증강ScVO4:Eu3+,Bi3+형광분적발광,이참입과량Al3+시회사ScVO4:Eu3+,Bi3+형광분적발광변약. 당Al3+재ScVO4:Eu3+,Bi3+중적마이분수체도4%시,양품적발광최강차기발광강도교미참잡Al3+적양품제고료약30%.
ScVO4:Eu3+,Bi3+,Al3+ phosphors were synthesized by solid-state reaction at 1 000℃ for 6 h. The samples were characterized by X-ray diffraction, FESEM, emission and excitation spectra. Under 315 nm excitation,strong salmon can be observed, which result from the emission band in 590~620 nm and the maximum emission peak in 615 nm. The incorporation of a small amount of Al3+can distinctly enhance the luminescence of the ScVO4: Eu3+, Bi3+ phosphors, while the excess amounts of Al3+ can make its luminescence weaker. The intensity of ( Sc0. 81 Eu0. 05 Bi0. 10 Al0. 04 ) VO4 phosphor is the strongest, improved 30 times than undoped ( Sc0. 8 5 Eu0. 05 Bi0. 10 ) VO4 phosphor.