High-level Stark Effect and Spectrum of Spherical Nanometer System  

球状纳米系统高能级斯塔克效应和谱线

作　　者：吴强[1] 龙晓霞[1] 郑瑞伦[2] 

机构地区：[1]重庆文理学院电子电气工程学院,重庆402160 [2]西南大学物理科学与技术学院,重庆400715

出　　处：《Chinese Journal of Chemical Physics》2010年第5期608-614,622,共8页化学物理学报（英文）

摘　　要：In the electric field and layer-to-layer interaction energy, the law of split-level of high-level Stark effect of spherical nanometer system is explored as well as the frequency of spectrum, intensity and size effect of coefficient of spontaneous radiation. Taking three layers CdS/HgS spherical nanometer system as an example, the influence of the electric field and layer-to- layer interaction energy is explored on Stark effect and spectrum. The results show that in the Stark effect system, the energy level is split based on 1, 3, ..., （2n-1）, when it is in the electric field only, similar to the hydrogen atoms; and in the electric field and layer-to-layer interaction, it is split based on 1, 4, ~ -., n2; with the quantum transition, the frequency of the spectrum decreases with the increasing size of the system; apart from a few spectral lines, the intensity of most spectral lines will decreased as the size increases; while the coefficient of spontaneous radiation will increase with the increasing size; the electric field will cause the changes of spectrum frequency; its spectrum frequency shift is proportional to the square of the electric field intensity; apart from a few spectral lines, the frequency shift of spectral lines that is caused by the electric field and layer-to-layer interaction will decrease as the size increases; the interaction will make the level of electronic energy level lower slightly （the order of magnitude is between 10-7-10-9 eV）, the slightly increased spectrum intensity and the slightly increased value of coefficient of spontaneous radiation, but it will not influence the frequency of spectrum, intensity, and the trend that coefficient of spontaneous radiation changes with the size; when the size is smaller, the layer-to-layer interaction effect will be significant.

关 键 词：Layer-to-layer interaction energy CdS/HgS/CdS spherical nanometer system Stark effect Frequency shift of spectral line Coefficient of spontaneous radiation 

分 类 号：O[理学]