About: Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present a comparative study of UV degradation of poly[methyl(phenyl)silane] (PMPSi) thin films on Si substrate in HV and in the air. When exposed to UV light with energies around 3.6 eV, the Si backbone scission occurs. The degradation rate is influenced by the presence of oxygen, which is bonded to the Si atoms following the backbone scission. In our experiments, the samples were placed in an HV chamber and ellipsometric spectra were continuously recorded in the 3.3-5.0 eV range. The combined tungsten (halogen)-deuterium source ensuring a proper level of light intensity used for both exposition and measurement. During 100 hours exposures at atmospheric pressure, the PMPSi film degraded completely and its optical response did not change further. Degradation of the sample exposed in vacuum (at the pressure of 5 x 10-6 Pa) is slower and stops earlier. Ellipsometric technique allowed us to perform detailed studies of the degradation dynamics. We present a comparative study of UV degradation of poly[methyl(phenyl)silane] (PMPSi) thin films on Si substrate in HV and in the air. When exposed to UV light with energies around 3.6 eV, the Si backbone scission occurs. The degradation rate is influenced by the presence of oxygen, which is bonded to the Si atoms following the backbone scission. In our experiments, the samples were placed in an HV chamber and ellipsometric spectra were continuously recorded in the 3.3-5.0 eV range. The combined tungsten (halogen)-deuterium source ensuring a proper level of light intensity used for both exposition and measurement. During 100 hours exposures at atmospheric pressure, the PMPSi film degraded completely and its optical response did not change further. Degradation of the sample exposed in vacuum (at the pressure of 5 x 10-6 Pa) is slower and stops earlier. Ellipsometric technique allowed us to perform detailed studies of the degradation dynamics. (en)
Title	Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry (en)
skos:prefLabel	Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry (en)
skos:notation	RIV/00216224:14310/08:00027153!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021622410)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Humlíček, Josef Navrátil, Karel Fikarová Zrzavecká, Olga Nešpůrek, Stanislav Nebojsa, Alois
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	364692
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/08:00027153
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	vacuum spectroscopic ellipsometry; ultraviolet exposure; PMPSi; polymers (en)
http://linked.open.../riv/klicoveSlovo	polymers PMPSi ultraviolet exposure vacuum spectroscopic ellipsometry
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[BC5AF5CCCBDE]
http://linked.open...i/riv/nazevZdroje	physica status solidi (c)
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	5
http://linked.open...iv/tvurceVysledku	Nešpůrek, Stanislav Humlíček, Josef Nebojsa, Alois Fikarová Zrzavecká, Olga Navrátil, Karel
http://linked.open...ain/vavai/riv/wos	000256862500063
http://linked.open...n/vavai/riv/zamer	Physical and chemical properties of advanced materials and structures
issn	1610-1642
number of pages	4 (xsd:int)
http://localhost/t...ganizacniJednotka	14310
is http://linked.open...avai/riv/vysledek of	Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry Dynamics of UV degradation of PMPSi in vacuum and in the air using in-situ ellipsometry

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