Naslov
Effect of nitrogen presence during the deposition on structural and optical properties of Ge quantum dot lattices in alumina matrix
(Effect of nitrogen presence on structural and optical properties of Ge quantum dot lattices in alumina matrix)

Autori
Tkalčević, Marija ; Basioli, Lovro ; Salamon, Krešimir ; Šarić, Iva ; Bubaš, Matej ; Bernstorff, Sigrid ; Fogarassy, Zsolt ; Katalin, Balázsi ; Mičetić, Maja

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

Izvornik
Book of Abstracts / Mičetić, Maja ; Karlušić, Marko - Zagreb : Hrvatsko Vakuumsko Društvo (HVD), 2019, 38-38

Skup
26th International Scientific Meeting on Vacuum Science and Technique

Mjesto i datum
Njivice, Hrvatska, 16.05.2019. - 17.05.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
magnetron sputtering deposition ; germanium QDs ; multilayer deposition

Sažetak
Effect of nitrogen presence during magnetron sputtering deposition of Ge quantum dot lattices embedded in the alumina matrix was studied. Three series of samples were deposited by varying substrate temperature, nitrogen flow rate, and germanium content. The aim was to examine the effects of these parameters on the structural and optical properties of the material and the self- assembled growth regime. Special attention was devoted to the oxidation of Ge quantum dots, and their effect on the optical properties of the material. It was shown that the presence of N affects the size of Ge QDs, their oxidation, and their optical properties. Deposition temperature and Ge content also affect Ge QD sizes and consequently bandgap and optical properties. Thus, the combination of the mentioned parameters presents a powerful tool for control of the properties of the material that are important for optoelectronic applications.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA