靜電紡絲技術制備稀土復合氧化物發(fā)光納米纖維與表征.pdf

1、一長春理工大學CHANGCHUNUNlVERSITY0FSCIENCEANDTECHNOLOGYNanofibershaveattractedmuchattentionofthepeopleduetotheirsuperioroptical，acousticelectricalmagneticthermalandmechanicalproperties，theyhavebecomeoneofthepopularsubjcctinthe丘

2、eldofnanoscicnceandnanotechnologyRareearthoxideluminescentmaterialshavebeenusedinmanyhightechfieldsPreparationpropertiesandapplicationsofthesecompoundshavebecomeanimportantresearchsubjecththisdissertationelectrospinningt

3、echniquewassuccessfullyusedtofabricatePVP／[Y(N03)3Eu(]q03)3]，PVA／【Gd(N03)3Eu(N03)3]andPVP，[Y(N03)3Tb(N03)3】compositenanofibersY203：Eu3，Gd203：Eu3andY203：1Fcrystallineiareearthoxidesluminescentnanofiberswereobtainedbycalci

4、nationoftherelativecompositenanofibers11letechniqueofferedanewroutetopreparationofonedimensionalnanoscaledluminescentmaterialsThemorphologyoffiberswasdiscussedbyadjustingalltheimportantparameterssuchasconcentrationofpoly

5、mervoltagedistancebetweentipandcollectorthemassofmetallicsaltsaddedtothes01Thcoptimumpreparationtechnologicalparametersofthepolymerfmorgnnicsaltscomposite6berswereacquirednesampleswcrccharacterizedbyscanningelectronmicro

6、scope(SEM)Xraydiffraction(XRD)thermalanalysis(TGDTA)，F(xiàn)ouriertransforminfraredspectrometer(FTIR)andfluorescencespectrophotometerAlltheresultsshowthatthepreparedpolymer／inorganicsaltscompositefibersandY203：Eu3，Gd203：Eu3and

7、Y203：TbJluminescentnanofibersweregoodonedimensionalnanofibersThediametersoftheluminescentnanofiberswereca50hmandtheseluminescentnanofiberspossessedexcellentmissionspectraSomenewmeaningfulresultshavebeenachievedandlaidafo