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Wysłany: Nie 20:54, 12 Gru 2010 Temat postu: ugg prezzo Doping concentration of Al2O3 Ce ^ 3 + |
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Doping concentration of Al2O3: Ce ^ 3 + luminescent properties of thin films
epositionconditionofconstantpower,ugg prezzo, 30minduration, ArandO2flowof43and10ml/min, therelationshipofluminescentpropertiesofAh203: Ce. filmswiththeamountofCeincorporatedinthefilmswasstudied,stivali ugg,. ThepresenceofCeaswellasthestoichiometryofthesefilmshavebeendeterminedbyenergydispersiveX - rayspectroscope (EDS) measurements. Itisobservedthatthetotalluminescenceintensityincreasesandthepeaksitsarestronglydependentonceriumconcentrationinthefilms. Andthereasonforthedependenceisanalyzed. Itisproposedthatthelightemissionobservedgeneratedbyluminescentcenterassociatedwithceriumchloridemolecularratherthantoatomicceriumimpurities,ugg milano,. Thecrystallinestructureofthesam-piewasanalysedbyX-raydiffractometry (XRD). Thisniques,ugg boots günstig, whichrequireapurerblueemission. 1uminescencefeaturehasanadvantagefordisplaytech-Keywords: Al2O3thinfilms; magnetronsputtering; dopingconcentration; photoluminescence; Ce (No. 871 on the pick) StudyongrowthandpropertiesofmercuryindiumtelluridesinglecrystalWANGIing-hang,ugg stivali, DONGYang-chun, JIEWan-qi (StateKeyLab.ofSolidificationProcessing, NorthwesternPolytechnicalUniversity, Xi'an710072, China) Abstract: HglnTesingle-crystalhaeengrownbyverticalBridgmanmethodandwasinvestigatedbymeansofX- -rayanalysisandFT - IR. Theresultsshowedthattheas-growncrystalwassingle-phasecrystalwithhighquality. Theinfraredtransmittanceinthemiddleandfarinfraredregionwasabout50 ~ 55. Theabsorptionofthecrystaltotheinfraredlightwasmainlylatticeabsorptionandfreecarriersabsorption. Keywords: HglnTe; crystalgrowth; verticalBridgmanmethod; photovoitaicsemiconductors; NIRdetector
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