Preparation of regularly ordered Ge quantum dot lattices in amorphous matrices

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10126343" target="_blank" >RIV/00216208:11320/12:10126343 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.vacuum.2011.07.032" target="_blank" >http://dx.doi.org/10.1016/j.vacuum.2011.07.032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.vacuum.2011.07.032" target="_blank" >10.1016/j.vacuum.2011.07.032</a>

Result language

angličtina

Original language name

Preparation of regularly ordered Ge quantum dot lattices in amorphous matrices

Original language description

We compare structural and optical properties of Ge quantum dot lattices in amorphous silica matrix obtained by two recently published techniques for the preparation of regularly ordered quantum dot lattices in amorphous matrices. The first technique is self-ordering growth of (Ge + SiO2)/SiO2 multilayer at an elevated substrate temperature where diffusion and surface morphology effects drive the self-ordering. The second one is irradiation of (Ge + SiO2)/SiO2 multilayer by oxygen ions. The multilayer used for the irradiation is grown at room temperature in this case, resulting with no Ge clusters after the deposition process. The irradiation causes clustering of Ge and ordering of Ge quantum dots in the irradiation direction. We show that the size of the dots and their arrangement can be easily manipulated by the preparation parameters. The structural properties of the films prepared by these methods affect the quantum confinement of the charge carriers which is visible in the absorpti

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Vacuum

ISSN

0042-207X

e-ISSN

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Volume of the periodical

86

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

733-736

UT code for WoS article

000301018400037

EID of the result in the Scopus database

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