Year: 1997
Type: article
Abstract: We study the electronic structure and excitonic properties of single quantum wells through an exact treatment of the Pikus - Bir Hamiltonian. In the ZnSe well, we find three distinguished exciton peaks in the absorption spectra, which are associated with the n = 1 and 2 heavy holes (HH1 and HH2) and n = 1 light hole (LH1), in good agreement with experiments. As the S content of the well increases, the HH1 exciton peak increases more rapidly than the LH1 peak, and a severe overlap between these two peak appears at x = 0.1. The binding energy of the HH1 exciton also increases with the S content; however, its maximum value decreases because of the decreasing confinement effect in the well.
Authors: Tae-Young Chung, J H Oh, Sun-Ghil Lee, Ji-Wook Jeong, K J Chang
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2056500920