摘要
利用高温熔融和后续热处理方法获得了ZnO纳米晶掺杂的SiO2-Al2O3-ZnO-K2CO3(SAZK)玻璃。利用差热分析(DSC)、透射电镜(TEM)、X射线衍射谱(XRD)、傅里叶红外光谱(FT-IR)和荧光光谱(PL)等对样品进行了表征。随着玻璃组分中K2CO3含量逐渐升高,热处理后SAZK玻璃中的主晶相逐渐由Zn2SiO4变为ZnO。在325nm激发下,ZnO纳米晶掺杂的SAZK玻璃在580nm处有一个宽波段发射峰。在K2CO3含量为8%(摩尔分数)时,SAZK玻璃的发射强度最大。
In order to investigate the effects of K2CO3 on the preparation and optical properties of ZnO nanocrystals doped zinc-aluminium-silicon(SAZK)glasses,SAZK glasses were prepared by melt-quenching method followed by a heat treatment process.Differential thermal analysis,transmission electronic microscopy,X-ray diffractometer,Fourier transform infrared spectrometer and fluorescence spectrophotometer have been used to investigate the microstructure and optical properties of the samples.The results showed that glass ceramics were obtained after heat treated at 750℃for 2h.The main crystal phase in SAZK glasses transformed from Zn2SiO4 to ZnO nanocrystals with increasing K2CO3 content.SAZK glass ceramics showed a wide emission band from450 to 700nm with a maximum at 580 nm.The photoluminescence intensity of glass containing 8mol% K2CO3 in the raw material was strongest.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2015年第7期7090-7092,共3页
Journal of Functional Materials
基金
国家科技支撑计划资助项目(2013BAE03B02)
国家自然科学基金资助项目(51172201)
