通过熔融热处理方法得到了Eu3＋掺杂氧化锌微晶玻璃。利用XRD、透射电子显微镜研究了热处理后微晶玻璃的微结构。利用发射光谱研究了其发光性能。结果表明,样品在750℃热处理2h后,在玻璃网络中形成了尺寸约10nm的ZnO纳米晶。结构研究显示结晶后Eu3＋进入了ZnO晶格之中。发射光谱显示其发光性能随着ZnO含量的增加以及热处理时间的增加而显著增强。
In order to investigate the optical properties of Eu3＋ ion doped zinc-alumino-silicate glass-ceramics which were prepared by melting and heat treating processes,differential thermal analysis,X-ray powder diffractometry,and transmission electronic microscopy have been carried out to study the microstructure of the samples.Photoluminescence spectra have been measured to study the optical properties of the samples.The results showed that ZnO crystals with a size of about 10 nm were formed after having been heat-treated at 750℃ for 2 hours.Spherical ZnO nanocrystals were distributed in the glass matrix.The X-ray diffraction peak positions of the samples showed that the Eu3＋ has entered into the ZnO nano-crystals.With the increase of ZnO content and heat treatment time the luminescence intensity increased significantly.The luminescence intensity also increased with increasing concentration of doped Eu3＋.
参考文献
| [1] | P.D.Cozzoli;M.L.Curri;A.Agostiano et al.ZnOnanocrystals by a non-hydrolytic route:Synthesis andcharacterization[J].Journal of Physical Chemistry B,2003,107:4756. |
| [2] | P.Yu;Z.K.Tang;G.K.L.Wong;M.Kwaskai .Room-temperature gain spectra and lasing in microcrystalline ZnO thinfilms[J].Journal of Crystal Growth,1998,184-185:601. |
| [3] | D.M.Bagnall;Y.F.Chen;M.Y.Shen .Room temperatureexcitonic stimulated emission from zinc oxide epilayers grown byplasma-assisted MBE[J].Journal of Crystal Growth,1998,184-185P:605. |
| [4] | S. F. Yu;Clement Yuen;S. P. Lau;W. I. Park;Gyu-Chul Yi .Random laser action in ZnO nanorod arrays embedded in ZnO epilayers[J].Applied physics letters,2004(17):3241-3243. |
| [5] | J.E.Nause .A new approach to growth of bulk ZnO crystals bymelt solidification INNOVATIVE PROCESSING ANDSYNTHESIS OF CERAMICS,GLASSES[J].ANDCOMPOSITES II,1999,12:28. |
| [6] | K.Vanheusden;W.L.Warren;C.H.Seager et al.Mechanisms behind green photoluminescence in ZnO phosphorpowders[J].Journal of Applied Physics,1996,79:7983. |
| [7] | P.A.Tick;N.F.Borrelli;L.K.Cornelius et al.TRANSPARENT GLASS-CERAMICS FOR 1300-NMAMPLIFIER APPLICATIONS[J].Journal of Applied Physics,1995,78:6367. |
| [8] | S.Ohara;H.Masai;Y.Takahashi et al.Space-selectivelycrystallized fiber with second-order optical nonlinearity forvariable optical attenuation[J].Optics Letters,2009,34:1027. |
| [9] | L.R.Pinckney .Transparent glass-ceramics based on ZnOcrystals,Physics and Chemistry of Glasses:European[J].Journal of Glass Science and Technology Part B,2006,47:127. |
| [10] | H.Masai et al.Processing and photoluminescence properties ofsurface crystallized ZnO glass-ceramics[J].Journal of Non-Crystalline Solids,2010,356:3080-3084. |
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