CAJ | 학술논문

通过室温固相反应制备了不同形貌的EuF3和SmF3纳米微粒,并利用XRD,TEM,SEM,和XPS对产物进行了表征.研究表明氟源对所得的稀土氟化物的尺寸与形貌有着重要的影响.通过硝酸盐与NH4F的反应得到了盘状的EuF3和SmF3微粒,而硝酸盐与HF·NH4F的反应得到的是不规则的EuF3和SmF3微粒.EuF3微粒的荧光光谱表明它们的发射峰的强度与尺寸与形貌有关.
통과실온고상반응제비료불동형모적EuF3화SmF3납미미립,병이용XRD,TEM,SEM,화XPS대산물진행료표정.연구표명불원대소득적희토불화물적척촌여형모유착중요적영향.통과초산염여NH4F적반응득도료반상적EuF3화SmF3미립,이초산염여HF·NH4F적반응득도적시불규칙적EuF3화SmF3미립.EuF3미립적형광광보표명타문적발사봉적강도여척촌여형모유관.
EuF3 and SmF3 nanoparticles with different morphologies have been synthesized through roomtemperature solid-state reactions and characterized by XRD, TEM, SEM and XPS analyses. The results show that the nature of fluoride source plays important roles in controlling the size and morphology of the resulting rare earth fluorides. The solid-state reactions of rare earth nitrate and NH4F yielded plate-like particles of EuF3 or SmF3 while indicate that the emission intensity of EuF3 particles is related to the sizes and morphologies.