氧缺位对纳米SnO_2喇曼谱及超精细参数的影响  

Effects Produced by Oxygen Deficiencies on Raman Spectra and Hyperfine Parameters of Nano SnO 2

作　　者：古堂生[1,2] 陈健 郑裕芳 冯卫国[1,2] 林光明 

机构地区：[1]中山大学物理学系 [2]中山大学测试中心

出　　处：《中山大学学报（自然科学版）》1998年第3期60-63,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省自然科学基金

摘　　要：采用溶胶－凝胶技术制备了ＳｎＯ２纳米微粉，测定晶粒尺寸在３～１５ｎｍ范围内ＳｎＯ２的喇曼光谱，并由穆斯堡尔谱给出其表面相与晶体相的超精细参数．此外还测定了氧缺位对分别在真空与氧气氛下退火的试样的喇曼谱的影响，并从超精细参数的变化给予解释．Nano SnO 2 powders were prepared by sol gel technology Raman spectra of nano SnO 2 with different crystalline diameter (3￣15 nm) were obtained, and the hyperfine parameters of interface phase and crystalline phase were determined by Mssbauer spectra Effects of oxygen deficiencies on Raman spectra of samples annealed in oxygen and vacuum respectively were measured and explained by the variation of hyperfine parameters

关 键 词：氧缺位 喇曼光谱 纳米材料 二氧化锡 超精细参数 

分 类 号：O48[理学—固体物理]