Open AccessEFFECTS OF DIELECTRIC CONFINEMENT ON EXCITIONIC STATES IN CdSe QUANTUM DOT
Author(s) -
Ying Luo,
Wang Rou-Zheng,
Bin Ma
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.729
Subject(s) - quantum dot , binding energy , ground state , radius , dielectric , biexciton , physics , exciton , condensed matter physics , energy (signal processing) , atomic physics , quantum mechanics , computer security , computer science
According to the relationship of Wang and Zunger between the declectric constants and the radius of a CdSe quantum dot (QD),we use the variational method to calculate the binding energy and ground state energy of an exciton in the QD.Compared with the previouse calculations,the present result shows that the binding energy increases while its ground state energy becomes lower and it is close to the experimental value.