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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Physica Status Solidi C - Current Topics in Solid State Physics

ISSN

1610-1642

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

1017-1020

Kód UT WoS článku

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EID výsledku v databázi Scopus

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