Silicon nanocrystal-based photonic crystal slabs with broadband and efficient directional light emission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00483462" target="_blank" >RIV/68378271:_____/17:00483462 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/17:10370563

Výsledek na webu

<a href="http://dx.doi.org/10.1038/s41598-017-05973-y" target="_blank" >http://dx.doi.org/10.1038/s41598-017-05973-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-017-05973-y" target="_blank" >10.1038/s41598-017-05973-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Silicon nanocrystal-based photonic crystal slabs with broadband and efficient directional light emission

Popis výsledku v původním jazyce

Light extraction from a planar layer can be increased by introducing 2D periodic pattern on its surface. Photonic crystal (PhC) slab enhances the extraction efficiency of light and direct the extracted emission into desired angles. Careful design of the structures is important in order to have a spectral overlap of the emission with leaky modes. We show that by fabricating PhC slabs with optimized dimensions from silicon nanocrystals (SiNCs) active layers, the extraction efficiency of vertical light emission from SiNCs can be enhanced 11 times compared to that of uncorrugated SiNCs-rich layer. Increased light emission can be obtained in a broad spectral range and the extracted light can stay confined within relatively narrow angle around the normal to the sample plane. We demonstrate experimentally and theoretically that the physical origin of the enhancement is such that light originating from SiNCs first couples to leaky modes and is then efficiently extracted into the surrounding.n

Název v anglickém jazyce

Silicon nanocrystal-based photonic crystal slabs with broadband and efficient directional light emission

Popis výsledku anglicky

Light extraction from a planar layer can be increased by introducing 2D periodic pattern on its surface. Photonic crystal (PhC) slab enhances the extraction efficiency of light and direct the extracted emission into desired angles. Careful design of the structures is important in order to have a spectral overlap of the emission with leaky modes. We show that by fabricating PhC slabs with optimized dimensions from silicon nanocrystals (SiNCs) active layers, the extraction efficiency of vertical light emission from SiNCs can be enhanced 11 times compared to that of uncorrugated SiNCs-rich layer. Increased light emission can be obtained in a broad spectral range and the extracted light can stay confined within relatively narrow angle around the normal to the sample plane. We demonstrate experimentally and theoretically that the physical origin of the enhancement is such that light originating from SiNCs first couples to leaky modes and is then efficiently extracted into the surrounding.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000405746500074

EID výsledku v databázi Scopus

2-s2.0-85025128657