By Topic

Effect of quantum confinement on higher transitions in HgTe nanocrystals

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
4 Author(s)
Rinnerbauer, Veronika ; Christian Doppler Laboratory of Surface Optics, University Linz, Altenbergerstr. 69, A-4040 Linz, Austria ; Hingerl, K. ; Kovalenko, Maksym ; Heiss, W.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2387110 

Spectroscopic ellipsometry measurements on 1–10 bilayers of HgTe nanocrystals and polymer were performed in the spectral range from 0.5 to 5 eV. The experiments show that the band model, respectively, band energy shifts due to quantization, can be applied onto nanocrystals with as few as five unit cells in diameter. These nanocrystals exhibit strong transitions at higher critical points. The critical point energies shift up to 0.4 eV. It turns out that transitions between bands which are closer to the Fermi energy and have a smaller carrier mass are more strongly affected by quantum confinement.

Published in:

Applied Physics Letters  (Volume:89 ,  Issue: 19 )