Light-assisted adsorption processes in nanocrystalline diamond membranes studied by femtosecond laser spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10070115" target="_blank" >RIV/00216208:11320/10:10070115 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/10:00354916
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Light-assisted adsorption processes in nanocrystalline diamond membranes studied by femtosecond laser spectroscopy
Original language description
We report on femtosecond photoluminescence spectroscopy of nanocrystalline diamond membranes(thickness ?1000 nm) prepared by microwave plasma enhanced chemical vapour deposition (CVD)technique. The decay of photoluminescence excited by the blue femtosecond light pulses (405 nm) reflects the photoexcited charge carrier dynamics in the sub-band gap energy states. The photoluminescence is strongly influenced by ambient conditions and by the laser irradiation (405 nm, 70 fs pulses). Under lower ambient airpressure (5-300 Pa) the photoluminescence intensity increases and the photoluminescence decay gets faster. For higher air pressures (N600 Pa) the photoluminescence intensity decreases and the photoluminescence decay rates do not evolve. We interpret theobserved different behaviour of the photoluminescence in the two air pressure intervals in terms of a thin water layer condensed on the surface at higher air pressures.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Diamond and Related Materials
ISSN
0925-9635
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
7-9
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
5
Pages from-to
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UT code for WoS article
000279229700047
EID of the result in the Scopus database
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