Energy bandstructureinvestigationofblueandgreenlightemitting Mg dopedSnO2 nanostructuressynthesizedbycombustionmethod
| Data(s) |
12/08/2014
12/08/2014
14/08/2013
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| Resumo |
Tin oxide(SnO2) andMgdoped(2,4,6,and8wt%)SnO2 nanoparticles weresynthesizedbytheself- propagating solutioncombustionsynthesisusingcitricacidasfuel.Thecharacterizationofsampleswas done byX-raydiffractionspectroscopy(XRD),transmissionelectronmicroscopy(TEM),UV–visible spectroscopy,SAEDandphotoluminescence(PL).XRDpatternandTEMstudiesshowthatthe synthesized particlesareofaveragesize30nmandtheyareintetragonalrutilestructureofSnO2. Combined blueandgreenemissionisseenin4wt%MgdopedSnO2 and intensityofbluebandis increased withrespecttoincreaseinMgdopantconcentrationwhichisattributedtoincreasein population ofoxygenvacancies.ThePLemissioninblueandgreenregionisduetothedoublycharged state (Vo 2þ) ofoxygenandtininterstitialdefectsrespectivelyandisexplainedwithanenergyband diagram Journal of Luminescence 145(2014)425–429 Cochin University of Science and Technology |
| Identificador | |
| Idioma(s) |
en |
| Publicador |
Elsevier |
| Palavras-Chave | #SnO2 #Combustion #Photoluminescence #Defect #Band structure |
| Tipo |
Article |
