Microstructural and Optical Absorption Properties of Cu—MgF2 Nanoparticle Cermet Film |
| |
引用本文: | 孙兆奇,孙大明,等.Microstructural and Optical Absorption Properties of Cu—MgF2 Nanoparticle Cermet Film[J].中国物理快报,2002,19(9):1365-1368. |
| |
作者姓名: | 孙兆奇 孙大明 |
| |
作者单位: | [1]DepartmentofModernPhysics,UniversityofScienceandTechnologyofChina,Hefei230027 [2]DepartmentofPhysics,AnhuiUniversity,Hefei230039 |
| |
摘 要: | We examine the microstructural and optical absorption spectra of 10-30vol% Cu-MgF2 nanoparticle cermet films prepared by co-evaporation in vacuum.The results show that the Cu-MgF2 cermet films are mainly composed of the amorphous MgF2 matrix with embedded fcc Cu nanoparticles of average size 12-24nm.The results also show that the optical absorption of the films decreases as the wavelength increases in the range of 200-800nm.The surface plasmon resonance absorption peaks of Cu nanoparticles in 10,20 and 30vol% Cu-MgF2 films appear at 578,588 and 606 nm,respectively.The interband transition absorption of Cu starts from 590nm downwards.Based on the Maxwell-Garnett theory,the experimental optical absorption properties of the films have been quantitatively evaluated.
|
关 键 词: | 薄膜 微结构 光吸收性质 |
本文献已被 维普 等数据库收录! |
|