CAJ | 학술논문

通过控制PO3-4/Tb3+的量比，在低温水热条件下合成了不同形貌的TbPO4·nH2 O纳米晶体。采用X射线衍射仪( XRD)、场发射扫描电镜( FE-SEM)及光致发光光谱( PL)等分析手段对所制备的样品进行了表征。研究了溶液中PO3-4/Tb3+比值变化对产物晶型结构、形貌、晶粒尺寸及发光性能的影响，给出了TbPO4· nH2 O纳米粉体的生长机理。实验发现，当PO3-4/Tb3+比值达到60∶1时，产物在过量的磷酸根体系中生长成直径为100~200 nm的TbPO4·nH2 O茧状微球，且产物的发光强度最大。 PO3-4/Tb3+比值对TbPO4·nH2 O形貌和发光性能有重要影响。
통과공제PO3-4/Tb3+적량비，재저온수열조건하합성료불동형모적TbPO4·nH2 O납미정체。채용X사선연사의( XRD)、장발사소묘전경( FE-SEM)급광치발광광보( PL)등분석수단대소제비적양품진행료표정。연구료용액중PO3-4/Tb3+비치변화대산물정형결구、형모、정립척촌급발광성능적영향，급출료TbPO4· nH2 O납미분체적생장궤리。실험발현，당PO3-4/Tb3+비치체도60∶1시，산물재과량적린산근체계중생장성직경위100~200 nm적TbPO4·nH2 O충상미구，차산물적발광강도최대。 PO3-4/Tb3+비치대TbPO4·nH2 O형모화발광성능유중요영향。
TbPO4 ·nH2 O were synthesized via low temperature hydrothermal method by controlling the molar ratio of PO3-4 /Tb3+. X-ray diffraction ( XRD) , field emission scanning electron microsco-py ( FE-SEM ) and photoluminescence spectra ( PL ) were used to characterize the as-synthesized products. The influence of the ratio of PO3-4 /Tb3+on the morphology, crystal structure and lumines-cent properties were studied. The possible growth mechanism was proposed. When the molar ratio of PO3-4 /Tb3+ is up to 60∶1, the powder is cocoon-like with a diameter of 100-200 nm, and its emis-sion intensity is the strongest. The ratio of PO3-4 /Tb3+ plays an important role in the morphology and the luminescent properties.