Dielectric mismatch in finite barrier cubic quantum dots

We study exciton states in cubic quantum dots with finite potential barrier in the presence of dielectric mismatch. The dependences of electron and hole ground states as well as exciton binding energy and oscillator strength are found as a function of quantum dot size and dielectric constant of quantum dot and surrounding matrix. The developed theoretical approach has been applied to analyze the peculiarities of exciton spectra in CdTe quantum dots embedded in a variety of dielectric matrices.