广州大学学报（自然科学版）
廣州大學學報（自然科學版）
엄주대학학보（자연과학판）
JOURNAL OF GUANGZHOU UNIVERSITY(NATURAL SCIENCE EDITION)
2007年
1期
29-33
,共5页
双层量子点%带负电荷激子%关联能%束缚能
雙層量子點%帶負電荷激子%關聯能%束縳能
쌍층양자점%대부전하격자%관련능%속박능
double-layer quantum dots%negatively charged exciton%correlation energy%binding energy
利用精确对角化方法,研究了抛物势双层量子点中带负电荷激子的1S态和3P态的关联能与量子点的束缚势大小的变化关系,以及1S态对应几个不同的量子点间点与点的距离的束缚能随束缚势大小的变化关系,计算了电子与空穴质量比为σ=0.677和σ=0.197的缚能随束缚势大小的变化关系.
利用精確對角化方法,研究瞭拋物勢雙層量子點中帶負電荷激子的1S態和3P態的關聯能與量子點的束縳勢大小的變化關繫,以及1S態對應幾箇不同的量子點間點與點的距離的束縳能隨束縳勢大小的變化關繫,計算瞭電子與空穴質量比為σ=0.677和σ=0.197的縳能隨束縳勢大小的變化關繫.
이용정학대각화방법,연구료포물세쌍층양자점중대부전하격자적1S태화3P태적관련능여양자점적속박세대소적변화관계,이급1S태대응궤개불동적양자점간점여점적거리적속박능수속박세대소적변화관계,계산료전자여공혈질량비위σ=0.677화σ=0.197적박능수속박세대소적변화관계.
The Hamiltonian equation for charged semiconductor complexes in a double-layer harmonic quantum dots was solved numerically by using the exact diagonalization techniques. By using this method, we have calculated the energy spectra of the ground state and first excited state of a charged exciton as a function of the confinement strength of the quantum dot and the binding energy spectra of the ground state as a function of the confinement strength of the quantum dot for a few values of the distance between the vertically coupled dots and the electron-to-hole mass ratio.
