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1、Sol-gelCombustionMethodsynthesisandLuminescentPropertiesofaluminatephosphorforWhite-LEDAbstract：Asanewtypeofsolid-statelightsource,LEDs(lightemittingdiode,LED)showthegreatapplicationprospectintheaspectssuchasindoorlighting,LCDdisplayandthebacklightwithitsattractiveadvan
2、tagesofenergyconsumptionsaving,high-efficiency,environmental，lifetimelong-lastingandsmallvolumeaspects.Roughly,thethreekindsofaccesstogetthewhiteLEDis:lightconversiontechnology,themulti-chipdirectcombinationlightconversionandmultiplequantumwell.Sofar,lightconversiontech
3、nologyismorecommonlyused.However,thetraditionalYAG:Ce3+phosphorisdifficulttomeetthedemandofdevelopmentduetolowcolorrendering,hightemperatureandsoon,andthenearultravioletchipLEDwithtricolorphosphorsofthecombinationisaneffectiveway.Therefore,itisagreatsignificancetomakeno
4、vel,stableandefficientdevelopmentofLEDphosphorsforWLEDtechnology.Presently,themainmethodstopreparephosphorsishightemperaturesolid-state
method,butthismethodhasshortagesoflongproductionperiod,high-temperature
long-timecalcinationsandagglomeration,thus,itisneededtodevelop
5、new
techniquestopreparephosphorspowders.Liquidareintroducedinthesemethodsto
makesurethateachingredientcanaccuratelybecontrolledandmixed.The
combustionsynthesishasthecharacteristicsofsimpleness,shortcut,anditiswidely
usedinthesynthesisofvariousoxides.Thetechnologyofreact
6、ionisthattheredox
reactionbetweenmetalnitrateandfuelinlowtemperaturegivesoffheattomake
syntheticreaction.Furthermore,thecombustionprocessisfacile,safe,instantaneous
energysaving,andtheproducthashighcrystallinityanduniformparticlesize
distribution.Accordingly,itisnecessa
7、rytoresearchthecombustionsynthesisforthe
developmentofwhiteLED.Thehighquantumefficiency,thermalstabilityandchemicalstabilityofthe
aluminatephosphorstimulatedtheresearchenthusiasm.Inthispaper,thealuminateIII万方数据fluorescentpowderarepreparedbylowtemperaturecombustionmethod
8、andthestructureandtheluminescentperformancecharacterizationofsystemanalysis,researchmethodsandconclusionsareas
