电场对球状纳米系统高能级分裂和谱线的影响

The Influence of High-energy Split and Spectrum of Spherical Nanometric System by Electric Field

探讨了电场作用下球状纳米系统电子的能级分裂规律和谱线分布,以CdS/HgS/CdS球状纳米系统为例,讨论了电场对高能级分裂和谱线的影响.结果表明:①电场作用下球状纳米系统发生的斯塔克效应,能级按1,3,…,2n-1进行分裂,与氢原子情况相同.但各能级会发生能级位移;②电场引起的电子能级移动量与电场E的平方成正比;它随线度的变化情况与能级有关,有的能级的能级位移量随线度增大而减小,而有的则相反;③电场不仅使纳米系统的谱线条数增多,而且谱线频率发生改变,频率变化量随样品线度增大而减小,但减小程度与能级有关.

Electronic energy level split and distribution of spectral line of spherical nanometric system in electric field is discussed. The results show that： （1）spherical nanometric systems in electric field, Stark effect will happen. Energy are splitting at 1, 3, …, 2n-1, the law resembles as hydrogen atom, but with different displacement of enery levels; （2）the vary of the displacement of energy level with the influence of linear will be acted by the energy level at some extent; （3）spectral line frequency of the sample-size decreased with the increase of linear, but the extent of reduction will be at the effect of level of energy.