Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00500997" target="_blank" >RIV/68378271:_____/18:00500997 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3762/bjnano.9.213" target="_blank" >http://dx.doi.org/10.3762/bjnano.9.213</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3762/bjnano.9.213" target="_blank" >10.3762/bjnano.9.213</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers

Popis výsledku v původním jazyce

We have fabricated two-dimensional photonic crystals (PhCs) on the surface of Si nanocrystal-rich SiO2 layers with the goal to maximize the photoluminescence extraction efficiency in the normal direction. The fabricated periodic structures consist of columns ordered into square and hexagonal pattern with lattice constants computed such that the red photoluminescence of Si nanocrystals (SiNCs) could couple to leaky modes of the PhCs and could be efficiently extracted to surrounding air. Samples having different lattice constants and heights of columns were investigated in order to find the configuration with the best performance. The extraction enhancement within different spatial angles was evaluated by means of micro-photoluminescence spectroscopy. More than 18-fold extraction enhancement was achieved for light propagating in the normal direction and up to 22% increase in overall intensity was obtained at the spatial collection angle of 14°.

Název v anglickém jazyce

Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers

Popis výsledku anglicky

We have fabricated two-dimensional photonic crystals (PhCs) on the surface of Si nanocrystal-rich SiO2 layers with the goal to maximize the photoluminescence extraction efficiency in the normal direction. The fabricated periodic structures consist of columns ordered into square and hexagonal pattern with lattice constants computed such that the red photoluminescence of Si nanocrystals (SiNCs) could couple to leaky modes of the PhCs and could be efficiently extracted to surrounding air. Samples having different lattice constants and heights of columns were investigated in order to find the configuration with the best performance. The extraction enhancement within different spatial angles was evaluated by means of micro-photoluminescence spectroscopy. More than 18-fold extraction enhancement was achieved for light propagating in the normal direction and up to 22% increase in overall intensity was obtained at the spatial collection angle of 14°.

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

<a href="/cs/project/GJ16-09692Y" target="_blank" >GJ16-09692Y: Studium vlivu fotonických struktur na fotoluminiscenci křemíkových center v diamantu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Beilstein Journal of Nanotechnology

ISSN

2190-4286

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

2287-2296

Kód UT WoS článku

000442701000002

EID výsledku v databázi Scopus

2-s2.0-85052974766