摘要
研究了温度对来自镶嵌在BaO薄膜中的纳米银粒子的光电发射的影响。在不同温度下计算和讨论了其光电发射谱(入射波长在0.2~0.8μm)。光电发射谱中温度越高,光电发射峰越大。同时发现镶嵌在BaO薄膜中银纳米的临界尺寸小于3.8nm。
The Dependence of the spectral distribution of photoemission from silver nano-particles embedded in BaO semiconductor thin film on temperature are predicted and investigated theoretically.At high temperature the photoemission response curves to wavelengths from 02 to 08 μm are given. It is showed that the higher temperature,the higher photoemission from silver nano-particles embedded in BaO.An explanation is also presented.It is also pointed out that the critical diameters of silver nano-particles between discrete electron eigenstates (quantum sizes region) and quasicontunuous energy bands for energy band of silver ultra-fine particles in the BaO are less than 38 nm
出处
《高压物理学报》
CAS
CSCD
北大核心
2005年第2期184-188,共5页
Chinese Journal of High Pressure Physics
基金
ProjectsupportedbytheNatureScienceFoundationofYunnanProvinceundergrant2004A00229M.