摘要
研究了超薄Ｆｅ膜在可见光波段及红外波段的吸收率随薄膜厚度变化的关系.结果表明，金属薄膜吸收率具有尺寸效应，并具有极大值．对比超薄Ｆｅ膜吸收率与其直流电导率的实验结果可知，结构特征变化是导致吸收率尺寸效应的重要原因.
The relationship between absorptance and thickness of ultra-thin iron films in visible and IR regions indicated that the absorptance of the metal films has size effect. The reflectance and transmittance of the films kept fixed values when the thickness of films was over 20 nm. In visible region, the maximum of absorptance of ultra-thin iron films appeared at thickness of about 18 nm. In infrared region, the absorptance roof of ultra-thin films appeared at thickness of about 10-20 nm. Comparing electric conductivity characteristic with absorptance of the films with different thicknesses, it can be concluded that the unique structure feature of the films led to the size effect of the absorptance.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第10期1097-1099,共3页
Acta Metallurgica Sinica
关键词
吸收率
尺寸效应
超薄铁膜
ultra-thin iron film
absorptance
size effect
