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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F08%3A00320616%21RIV10-AV0-68378271
rdf:type
skos:Concept n11:Vysledek
dcterms:description
The nanodiamond samples were prepared by microwave plasma enhanced CVD technique. Photoluminescence with very fast non-exponential decay with the effective time of about 1 ps was observed in the investigated spectral interval 1.8-2.8 eV. The decay was spectrally dependent being faster at higher photon energies. We have found that the hotoluminescence dynamics are affected by temperature and ambient pressure. We interpret the photoluminescence dynamics in terms of charge-carrier relaxation via the continuum of the nanocrystal surface-related energy states lying energetically below the diamond band-gap energy. The results can be explained by the spectral dependence of the density of these states and its changes due to ambient conditions. The nanodiamond samples were prepared by microwave plasma enhanced CVD technique. Photoluminescence with very fast non-exponential decay with the effective time of about 1 ps was observed in the investigated spectral interval 1.8-2.8 eV. The decay was spectrally dependent being faster at higher photon energies. We have found that the hotoluminescence dynamics are affected by temperature and ambient pressure. We interpret the photoluminescence dynamics in terms of charge-carrier relaxation via the continuum of the nanocrystal surface-related energy states lying energetically below the diamond band-gap energy. The results can be explained by the spectral dependence of the density of these states and its changes due to ambient conditions.
dcterms:title
Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films
skos:prefLabel
Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films
skos:notation
RIV/68378271:_____/08:00320616!RIV10-AV0-68378271
n3:aktivita
n13:Z n13:P
n3:aktivity
P(GD202/05/H003), P(KAN400100701), Z(AV0Z10100521), Z(MSM0021620834)
n3:cisloPeriodika
9
n3:dodaniDat
n6:2010
n3:domaciTvurceVysledku
n8:7465416 n8:9994602
n3:druhVysledku
n15:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
401299
n3:idVysledku
RIV/68378271:_____/08:00320616
n3:jazykVysledku
n18:eng
n3:klicovaSlova
nanocrystalline diamonde films; ultrafast photoluminescence
n3:klicoveSlovo
n9:nanocrystalline%20diamonde%20films n9:ultrafast%20photoluminescence
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[60686A2C5CB9]
n3:nazevZdroje
Physica Status Solidi. A
n3:obor
n17:BM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:projekt
n16:GD202%2F05%2FH003 n16:KAN400100701
n3:rokUplatneniVysledku
n6:2008
n3:svazekPeriodika
205
n3:tvurceVysledku
Kromka, Alexander Malý, P. Trojánek, F. Preclíková, J. Dzurňák, B. Rezek, Bohuslav
n3:wos
000259653700010
n3:zamer
n7:MSM0021620834 n7:AV0Z10100521
s:issn
1862-6300
s:numberOfPages
4