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Ge Quantum Dots in Alumina Multilayers: Self- Assembly for Advanced Properties


Buljan, Maja; Radić, Nikola; Ivanda, Mile; Bogdanović-Radović, Ivančica; Karlušić, Marko; Dražić, G.; Pletikapić, Galja; Svetličić, Vesna; Jerčinović, Marko; Bernstorff, Sigrid; Holý, V.
Ge Quantum Dots in Alumina Multilayers: Self- Assembly for Advanced Properties // 14th Joint Vacuum Conference (JVC 14) and 12th European Vacuum Conference (EVC 12) and 11th Annual Meeting of the German Vacuum Society (AMDVG 11) and 9th Croatian - Slovenian Vacuum Meeting (CROSLOVM 19) : Programme and book of abstracts / Radić, Nikola ; Milošević. Slobodan (ur.).
Zagreb: Croatian Vacuum Society, 2012. str. 52-52 (predavanje, međunarodna recenzija, sažetak, znanstveni)


Naslov
Ge Quantum Dots in Alumina Multilayers: Self- Assembly for Advanced Properties

Autori
Buljan, Maja ; Radić, Nikola ; Ivanda, Mile ; Bogdanović-Radović, Ivančica ; Karlušić, Marko ; Dražić, G. ; Pletikapić, Galja ; Svetličić, Vesna ; Jerčinović, Marko ; Bernstorff, Sigrid ; Holý, V.

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

Izvornik
14th Joint Vacuum Conference (JVC 14) and 12th European Vacuum Conference (EVC 12) and 11th Annual Meeting of the German Vacuum Society (AMDVG 11) and 9th Croatian - Slovenian Vacuum Meeting (CROSLOVM 19) : Programme and book of abstracts / Radić, Nikola ; Milošević. Slobodan - Zagreb : Croatian Vacuum Society, 2012, 52-52

ISBN
978-953-98154-1-5

Skup
Joint Vacuum Conference (14 ; 2012) ; European Vacuum Conference (12 ; 2012) 11th Annual Meeting of the German Vacuum Society (11 ; 2012) ; Croatian-Slovenian Vacuum Meeting (19 ; 2012)

Mjesto i datum
Dubrovnik, Hrvatska, 04.-08.06.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Ge quantum dots; amorphous alumina; self-assembly; multilayers; magnetron sputtering; ion beam irradiation

Sažetak
We report on a method for the production of materials consisting of regularly ordered Ge quantum dots in amorphous alumina matrix, with advanced properties. The regular ordering is induced by self-assembled growth during the magnetron sputtering deposition of a (Ge+Al2O3)/Al2O3 multilayer. The formation and regular ordering of quantum dots is achieved already at room temperature. The distances between the quantum dots and their sizes can be tuned by the deposition temperature, while the annealing temperature controls the quantum dots crystalline structure. The produced materials have a high spatial density of quantum dots with narrow size distribution, and they show a size-dependent photoluminescence in the visible light range. The structure of the materials is shown to be highly resistive to ion-beam irradiation for a large range of irradiation parameters. We compare the self-assembled quantum dots formed in alumina and silica matrices, and we show that the Ge quantum dots in alumina are superior to Ge dots in silica concerning the degree of ordering, facile production and resistivity to ion-beam irradiation.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0982886-2859 - Sinergija nanofaza i nanokompozita (Maja Buljan, )
098-0982886-2895 - Novi amorfni i nanostrukturirani tankoslojni materijali (Nikola Radić, )
098-0982904-2898 - Fizika i primjena nanostruktura i volumne tvari (Mile Ivanda, )
098-0982934-2744 - Površinske sile na atomskoj skali u istraživanju mora i nanotehnologiji (Vesna Svetličić, )
098-1191005-2876 - Procesi interakcije ionskih snopova i nanostrukture (Milko Jakšić, )

Ustanove
Institut "Ruđer Bošković", Zagreb