Chiang Mai Journal of Science

The observed calculations are mainly sensitive with sizes. The reduction of the single-particle and excitonic gaps is realized owing to the quantum confinement. In addition, the electron-hole coulomb energies are decreased with the increasing sizes. The calculated results are consistent with the other theoretical and experimental data. Finally, our studies elucidate and quantify the importance of sizes in determining the electronic properties of CdSe wurtzite nanocrystals which can aid to design for the further application.