Naslov
A comparative study of self ordering growth of silicon and germanium quantum dots in amorphous matrix

Autori
Buljan, Maja ; Dubček, Pavo ; Radić, Nikola ; Capan, Ivana ; Desnica, Uroš V. ; Bernstorff, Sigrid ; Holý, Vaclav ; Pivac, Branko ;

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
E-MRS 2010 Spring Meeting, BOOK OF ABSTRACTS / - Strasbourg, 2010

Skup
E-MRS 2008 Spring Meeting, Symposium J: Silicon-based nanophotonics

Mjesto i datum
Strasbourg, Francuska, 08.06.2010. - 10.06.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
germanium; silicon; quantum dots; selfordering; SAXS

Sažetak
A comparative study of self-ordering growth of germanium and silicon quantum dots in amorphous silica matrix is presented. The self-ordering is driven by surface morphology mechanism during the (Ge+SiO2)/SiO2 and (Si+SiO2)/SiO2 multilayer growth. We show a dependence of the regularity in quantum dot positions and of the size distribution of the Ge and Si dots on their deposition parameters. The obtained results demonstrate that self-ordering and higher degree of regularity of the positions of quantum dots is much easily achieved in the germanium quantum dot multilayers. This phenomenon is explained and simulated by a Monte-Carlo model which is based on diffusion mediated nucleation and an influence of the surface morphology on the local diffusion of adatoms.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA