纳米氧化物光谱特性及其相关机理的初步分析  

Analysis of Mechanism on Absorption Spectra of Nano-oxide Materials

作　　者：杨护霞[1] 项金钟[1] 杨海刚[1] 姜军[1] 方静华[1] 

机构地区：[1]云南大学材料科学与工程系,云南昆明650091

出　　处：《红外技术》2005年第4期319-323,共5页Infrared Technology

基　　金：云南省自然科学基金项目(2001E0003Z);云南省教育厅科研基金项目(03Y652D)

摘　　要：纳米氧化物粉体与常规氧化物粉体相比呈现出吸收峰发生红移、蓝移等特异性能。初步研究表明,纳米颗粒尺寸越小,这些特异效应越明显,有关纳米氧化物光谱特性的研究已成为当前纳米材料研究的热点之一;然而,其光谱特性机理尚无统一解释。通过对波谱吸收机理和纳米材料特性的综合考察和分析,以及结合具体纳米氧化物材料的讨论,给出了导致蓝移、红移的主要因素。Comparing with general bulk-oxide powders, nano-powders of oxide-materials exhibit blue and red shift in their optical absorption spectra. These shifting-effects would be more obvious as the nano-particles smaller. Investigation on the absorption spectra of nano-oxide materials has been become one hot topic of nano-materials field. Unfortunately, the mechanism of the shifting-effects of nano-materials is not good understood up to date. The causes of influence on the blue and red shift of absorption peak were discussed with inspecting the examples of nano-oxide materials in this paper.

关 键 词：纳米粒子 吸收光谱 红移 蓝移 

分 类 号：TN213[电子电信—物理电子学]