物理学报2013，Vol.62Issue(1)：328-333,6.DOI:10.7498/aps.62.016105
聚丙烯酰胺凝胶法制备大孔α-氧化铝及其发光性能研究
Photoluminescence of macroporous α-alumina prepared by polyacrylamide gel technique
摘要
Abstract
Macroporous α-Al2O3 is synthesized by polyacrylamide gel technique. X-ray diffractor combined with a photoluminescence spectrophotometer is used to investigate the formation of A12O3 phase and the light emission properties of xerogel sintered at different temperatures. It is demonstrated that high-purity α-Al2O3 can be obtained at a sintering temperature of 1150 ℃. Scanning electron microscopy images reveal that the synthesized α-Al2O3 has a monolithic structure. Photoluminescence spectra show that a major emission band around 365 nm and a weaker side band around 330 nm are observed when the excitation wavelength is 228 nm. The pore-formation and luminescence mechanisms of porous alumina are discussed based on the experimental results.关键词
α-氧化铝/大孔结构/聚丙烯酰胺凝胶法/发光性能Key words
a-alumina/ macroporous structure/ polyacrylamide gel technique/ luminescence properties引用本文复制引用
高晓林,王仕发,向霞,刘春明,祖小涛..聚丙烯酰胺凝胶法制备大孔α-氧化铝及其发光性能研究[J].物理学报,2013,62(1):328-333,6.基金项目
国家自然科学基金(批准号:10904008)和国家自然科学基金委员会-中国工程物理研究院联合基金(批准号:11076008)资助的课题. （批准号:10904008）
