荧光绝对量子产率.pdf

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1、AbsolutePLQuantumYieldSpectrometerDyeFluorescentsensitizedprobePVmaterialOrganicLEDmetalphosphorcomplexOLEDQuantummaterialdotQuantaurus-QYwasdevelopedasacompact,easy-to-usesystemwithasmallfootprintbasedonHamamatsu'sestablishedC9920-02/03systemsformeasuringabsolu

2、tephotoluminescencequantumyields.Operatingthissystemissimple.Loadasampleandpressthestartbuttontomeasurethephotoluminescencequantumyields,excitationwavelengthdependence,PLexcitationspectrumandotherpropertiesinashorttime.MeasuringabsolutephotoluminescencequantumFe

3、aturesyields(internalquantumefficiency)oflight-emittingmaterialsMeasuresabsolutephotoluminescencequantumIndevelopingnewlight-emittingmaterials,itisessentialtoyieldoflight-emittingmaterials(PLmeasurement)improvetheirphotoluminescenceefficiency.Improvingthiseffici

4、encyrequiresaccuratetechniquesforUtilizesanintegratingspheretomeasureallluminousfluxmeasuringthequantumyield*.Quantaurus-QYincludesanexcitationlightsourceconsistingofaxenonlampandaCooled,back-thinnedCCDsensorallowsmeasurementsmonochromator,anintegrationspherewit

5、hoptionalnitrogengasflow,andamultichanneldetectorcapableofsimultaneouswithultra-highsensitivityandhighS/Nratiomulti-wavelengthmeasurement,whichareallintegratedintoasinglepackage.ThesystemutilizesdedicatedsoftwareforAutomaticallycontrolstheexcitationwavelengthsma

6、kingthemeasurements.Thedetectorisacooled,back-thinnedCCDsensorandsomakesinstantaneousSpace-saving,compactdesignmeasurementswithhighsensitivity.Quantaurus-QYhandlessolution,thin-filmandpowderWideselectionofanalysisfunctionssamples,anditcancoolsolutionsamplesdownt

7、oliquidPhotoluminescencequantumyieldmeasurementnitrogentemperature.ExcitationwavelengthdependencePhotoluminescencespectrum*RatioofthenumberofphotonsemittedbyphotoluminescencetothePLexcitationspectrumnumberofphotonsabsorbedbythelight-emittingmaterial.2Instantaneo

8、usmeasurementThemultichanneldetectorcapturesthesensitivity-compensatedspectrum,andcalculatesthequantumyieldinaprocessthatinstantaneouslyfindstheabsolutevalueofthequan