Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers
Original language description
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°.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GJ16-09692Y" target="_blank" >GJ16-09692Y: Studying effects of photonic crystal structures on photoluminescence of silicon-vacancy centers in diamond</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Beilstein Journal of Nanotechnology
ISSN
2190-4286
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
2287-2296
UT code for WoS article
000442701000002
EID of the result in the Scopus database
2-s2.0-85052974766