人工晶体学报2011，Vol.40Issue(5)：1258-1260,1265,4.
微波熔盐沉积制备AlN纳米晶及光致发光特性研究
Photoluminescence Properties of AlN Nanocrystals Synthesized by Microwave Molten Salt Precipitation Method
摘要
Abstract
A1N nanocrystals were synthesized by microwave molten salt precipitation method at 700 ℃, using A1C13 and Ii3N as raw materials, NaCl and KC1 mixing as molten salt. The composition, microscopy and photoluminescence properties of A1N nanocrystals were characterized by X-ray diffraction (XRD) , scan electron microscopy (SEM) , energy dispersive spectrometer (EDS) and PL. The optical property was measured by photo-luminescence (PL). The results showed that A1N with wurtzite crystal structure was obtained. The size of these crystals was 35. 6 nm which was calculated by Scherrer formula, the particles were square and the size was about 35 nm. The relative contents of Al and N were 50. 521% and 49.479% respectively which means the stoichiometry of A1N nanocrystal was about 1∶1. At room temperature, the luminescence property was investigated with PL spectrum. The emission center was at 435 nm and the main defect may be caused by impurities. Based on all results mentioned above, it could be concluded that the microwave molten salt precipitation method is preferable to synthesize A1N nanocrystal.关键词
微波熔盐沉积/AlN纳米晶/光致发光Key words
microwave molten salt precipitation/ A1N nanocrystal/ photoluminescence分类
数理科学引用本文复制引用
黄毅,张建军,尔古打机..微波熔盐沉积制备AlN纳米晶及光致发光特性研究[J].人工晶体学报,2011,40(5):1258-1260,1265,4.基金项目
西南民族大学人才引进项目(234818) （234818）
中央高校基本科研业务费专项资金项目(09NZYJ08) （09NZYJ08）
留学回国人员创新基金(26707101) （26707101）
江西省教育厅项目(GJJ09195) （GJJ09195）
