Naslov
Effective film thickness influence on self-organization of ge islands on si(100) substrates

Autori
Dubček, Pavo ; Pivac, Branko ; Capan, Ivana ; Radić, Nikola ; Bernstorff, Sigrid

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

Izvornik
ABSTRACT CD, IVC17/ICSS13 & ICN+T2007 / Westerberg, Lars ; Karlsson, Ulf - Stockholm : Organizing CommitteeABSTRACT CD, 2007, TFSEP2-288

Skup
IVC17/ICSS13 & ICN+T2007

Mjesto i datum
Stockholm, Švedska, 02.07.2007. - 06.07.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Ge islands; self-organization

Sažetak
Germanium islands were produced by magnetron sputtering of Ge onto monocrystalline silicon, where effective Ge thickness was varied from 2 to 6 nm. The shape and distribution of the islands were investigated using grazing incidence small-angle X-ray scattering (GISAXS) and atomic force microscopy (AFM). The GISAXS experiments revealed that Ge islands height varied from 3 to 6 nm and the lateral dimensions of 10 to 20 nm. However, AFM results indicated bigger sizes, and this is attributed to different resolution ranges of the two experimental techniques. Tuning the deposition conditions and subsequent treatments may allow the control of the size and shape of the islands and consequently the energy levels that drive the light absorption spectra. Such simple process could be of great interest for the third generation of solar cells, aiming to very high efficiencies at low cost.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA