Excitation and Emission Characteristics of Pretreated SrS:Mn:Ce Phosphors

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Excitation and Emission Characteristics of Pretreated SrS:Mn:Ce Phosphors

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dc.contributor.author Lalitha, P R
dc.contributor.author Rao, V R
dc.contributor.author V P N Nampoori
dc.date.accessioned 2011-12-17T06:05:55Z
dc.date.available 2011-12-17T06:05:55Z
dc.date.issued 1980
dc.identifier.other Current Science,Vol.49,No.23,1980
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/2654
dc.description.abstract Excitation and emission spectra of SrS : Mn : Ce phosphors have been studied in detail at various Mn and Ce concentrations. In order to study the effect of external pressure on phosphors, the samples were pretreated under various pressures. Four bands around 470 nm, 530 nm, 310 nm and 620 nm were observed, when the samples were excited with 265 nm radiation. The effect of pressure is to reduce the fluorescence ability of the phosphors, and the luminescence vanishes above O· 1 ton m-2 pressure. The fluorescence ability, however, can be regained on retiring the sample. The emission mechanism has been attributed to two luminescentcenters in the forbidden gap. An appreciable amount of photocurrent has also been observed for the sample. en_US
dc.description.sponsorship Regional College 0f Education en_US
dc.language.iso en en_US
dc.publisher Current Science en_US
dc.subject Emission spectra en_US
dc.subject SrS:Mn:Ce Phosphors en_US
dc.title Excitation and Emission Characteristics of Pretreated SrS:Mn:Ce Phosphors en_US
dc.type Working Paper en_US
dc.contributor.faculty Technology en_US


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