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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F11%3A00361260%21RIV12-AV0-68378271
rdf:type
skos:Concept n12:Vysledek
dcterms:description
We report on ultrafast photoluminescence (PL) spectroscopy of blue and red-emitting silicon nanostrucures. We prepared samples of porous Si with different dominating PL bands in time-integrated PL spectrum. These samples show also striking differences in ultrafast PL dynamics. For the red-emitting samples we observe rapid PL onset followed by a two-exponential decay, which is spectrally dependent. For the blue-emitting porous Si the PL builds up several ps and decays mono-exponentially with spectrally independent PL rise and decay times. Our results indicate that a dominant part of the blue and red emission comes from two distinct species with different energy states structures. This is also supported by two-photon absorption induced PL measurements. The two-photon and one-photon absorption induced PL spectra, which are identical for the red-emitting samples, differ substantially for the blue-emitting ones. We report on ultrafast photoluminescence (PL) spectroscopy of blue and red-emitting silicon nanostrucures. We prepared samples of porous Si with different dominating PL bands in time-integrated PL spectrum. These samples show also striking differences in ultrafast PL dynamics. For the red-emitting samples we observe rapid PL onset followed by a two-exponential decay, which is spectrally dependent. For the blue-emitting porous Si the PL builds up several ps and decays mono-exponentially with spectrally independent PL rise and decay times. Our results indicate that a dominant part of the blue and red emission comes from two distinct species with different energy states structures. This is also supported by two-photon absorption induced PL measurements. The two-photon and one-photon absorption induced PL spectra, which are identical for the red-emitting samples, differ substantially for the blue-emitting ones.
dcterms:title
Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures
skos:prefLabel
Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures
skos:notation
RIV/68378271:_____/11:00361260!RIV12-AV0-68378271
n12:predkladatel
n13:ico%3A68378271
n3:aktivita
n9:S n9:P n9:Z
n3:aktivity
P(IAA101120804), P(LC510), S, Z(AV0Z10100521), Z(MSM0021620834)
n3:cisloPeriodika
3
n3:dodaniDat
n6:2012
n3:domaciTvurceVysledku
n19:9441034
n3:druhVysledku
n4:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
236660
n3:idVysledku
RIV/68378271:_____/11:00361260
n3:jazykVysledku
n20:eng
n3:klicovaSlova
silicon; nanocrystals; time-resolved spectroscopy; luminescence; polarization; two-photon absorption
n3:klicoveSlovo
n5:two-photon%20absorption n5:polarization n5:time-resolved%20spectroscopy n5:silicon n5:luminescence n5:nanocrystals
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[9CD036E1723C]
n3:nazevZdroje
Physica Status Solidi C: Current Topics in Solid State Physics
n3:obor
n10:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:projekt
n7:IAA101120804 n7:LC510
n3:rokUplatneniVysledku
n6:2011
n3:svazekPeriodika
8
n3:tvurceVysledku
Pelant, Ivan Hönerlange, B. Gilliot, P. Malý, P. Žídek, K. Trojánek, F.
n3:zamer
n11:MSM0021620834 n11:AV0Z10100521
s:issn
1862-6351
s:numberOfPages
6
n8:doi
10.1002/pssc.201000394