Tight-binding calculations of ellipsoidal InAs nanocrystals
Worasak Sukkabot** Author for corresponding; e-mail address: w.sukkabot@gmail.com
Volume: Vol.41 No.5/2 (OCTOBER 2014)
Research Article
DOI:
Received: 14 June 2013, Revised: -, Accepted: 20 December 2013, Published: -
Citation: Sukkabot W., Tight-binding calculations of ellipsoidal InAs nanocrystals, Chiang Mai Journal of Science, 2014; 41(5/2): 1375-1383.
Abstract
The empirical tight-binding calculations of electron and hole states for ellipsoidal InAs nanocrystals passivated by hydrogen atoms are presented. The electronic structure is numerically calculated for various shapes within keeping a constant volume of nanocrystals. The significant impact of the shape for the nanocrystals on the electronic structure and the emission spectra along the x, y and z polarized direction is fruitfully observed. The results demonstrate that by changing the ellipsoidal aspect ratios the electronic structure and optical signatures are different.