Polarization of photoluminescence excitation and emission spectra of silicon nanorods within single Si/SiO2 nanowires

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109528" target="_blank" >RIV/00216208:11320/11:10109528 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/pssc.201000398" target="_blank" >http://dx.doi.org/10.1002/pssc.201000398</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssc.201000398" target="_blank" >10.1002/pssc.201000398</a>

Result language

angličtina

Original language name

Polarization of photoluminescence excitation and emission spectra of silicon nanorods within single Si/SiO2 nanowires

Original language description

Polarization properties of individual silicon nanowires are studied using an optical micro-spectroscopy setup equipped with a Fresnel rhomb to rotate the polarization of the exciting laser and the analyzer to characterize the polarization of emitted photoluminescence. The Si nanowire samples are prepared by electron-beam lithography, plasma etching and oxidation. The fabricated wires are embedded in SiO2 and oriented parallel to the Si substrate. Due to the fluctuating wire diameter (around 5 nm) the very long wires (several tens of) are effectively divided into an array of quantum rods (prolate ellipsoids) These structures have strong photoluminescence under UV-blue excitation at room temperature. The degree of photoluminescence linear polarization ofboth excitation and emission is very high, between 0.9-1, and reveals relatively low fluctuations at different spots of the wires. Experimental results are compared with available theoretical models leading to the conclusion that the hig

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

BH - Optics, masers and lasers

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

Physica Status Solidi C - Current Topics in Solid State Physics

ISSN

1610-1642

e-ISSN

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Volume of the periodical

8

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

4

Pages from-to

1017-1020

UT code for WoS article

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EID of the result in the Scopus database

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