CAJ | 학술논문

采用甘氨酸-硝酸盐法（GNP）制备了SrAl2O4：Eu2+，Dy3+长余辉发光材料，研究了甘氨酸和金属离子的摩尔比（G/M）对SrAl2O4：Eu2+，Dy3+长余辉发光材料结构与性能的影响。结果表明：随着G/M的增加，产物的晶粒尺寸和发射强度增大，发射光谱红移，而初始亮度呈现先增后减的规律；G/M为3∶1时，得到的产物为纯SrAl2O4晶相，平均晶粒尺寸为75 nm，初始亮度最大；采用GNP合成的SrAl2O4：Eu2+，Dy3+长余辉发光材料的发射光谱为宽谱带发光光谱，其发射主峰位为508 nm左右，是典型的Eu2+的4 f 5 d→4 f的特征发射。
채용감안산-초산염법（GNP）제비료SrAl2O4：Eu2+，Dy3+장여휘발광재료，연구료감안산화금속리자적마이비（G/M）대SrAl2O4：Eu2+，Dy3+장여휘발광재료결구여성능적영향。결과표명：수착G/M적증가，산물적정립척촌화발사강도증대，발사광보홍이，이초시량도정현선증후감적규률；G/M위3∶1시，득도적산물위순SrAl2O4정상，평균정립척촌위75 nm，초시량도최대；채용GNP합성적SrAl2O4：Eu2+，Dy3+장여휘발광재료적발사광보위관보대발광광보，기발사주봉위위508 nm좌우，시전형적Eu2+적4 f 5 d→4 f적특정발사。
SrAl2O4Eu2+, Dy3+long afterglow luminescent material was synthesized by glycine-nitrate process. The effect of molar ratio of glycine to metal ion(G/M)on the structure and properties of SrAl2O4Eu2+,Dy3+was investigated. The results indicate that with the increase of G/M, the particle sizes and emission intensity increase, emission spectra are shift to red wavelength, and initial brightness first increases and then decreases. It is found that single SrAl2O4 phase powders with mean particle size of 75 nm are obtained when a G/M ratio of 3∶1 is adopted, and show the highest initial brightness. The main emission peaks appear at 508 nm, and the emission spectra of the synthesized luminescent materials show that they are broadband, which is the typical emission of Eu2+4 f 5 d→4 f.