论文部分内容阅读
当电子数目很少时 ,用简谐势来描述量子点中电子所受的约束是一种很准确的近似。文章利用量子力学中的少体理论方法研究了二电子系统和三电子系统的行为。少体理论可以把质心运动和相对运动分离 ,从而得到精确的数值解。利用单个电子在量子点中的基态波函数的束缚行为 ,选择了量子点的束缚能。通过对CdS、PbS等半导体纳米粒子的充电电容的计算找到了其在室温下形成单电子器件的最大粒径。
When the number of electrons is small, it is a very accurate approximation to describe the constraints imposed by electrons in a quantum dot using harmonic potentials. The article studies the behavior of two-electron system and three-electron system by using less-body theory method in quantum mechanics. Less body theory can separate centroid and relative motions and get accurate numerical solution. By using the binding behavior of the ground state wave function of a single electron in a quantum dot, the binding energy of the quantum dot is selected. Through the calculation of the charging capacitance of semiconductor nanoparticles such as CdS and PbS, the maximum size of single-electron devices formed at room temperature was found.