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Title:
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Bias voltagecontrolledphotoluminescencefrom b-In2S3 thin films |
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Author:
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Sudha Kartha, C; Jayakrishnan, R; Vijayakumar, K P
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Abstract:
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b-In2S3 thin filmsweredepositedonIndiumTinOxidesubstratesusingtheChemical
SprayPyrolysistechnique.Metalcontactwasdepositedoverthe b-In2S3 thin filmto
formahetero-structureofthetypeITO/b-In2S3/Metal.Theintensityoftwophoto-
luminescenceemissionsfromthe b-In2S3 thin film,centeredat520and690nmcould
be variedbytheapplicationofanexternalbiasvoltagetothishetero-structure.The
emissionscouldbeswitchedonoroffdependinguponthemagnitudeoftheexternal
appliedbiasvoltage.Thusthepresenceoftwoconductingstatesinthishetero-structure
could beidentified.Thetemporalvariationinintensityofthephotoluminescence
emissionwiththeapplicationofthebiasvoltagehasalsobeenstudied.Thecondition
underwhichphotoluminescencequenchingoccurshasbeenrepresentedbyafirst
order differentialequationbetweendiffusionlengthandcarrierconcentration |
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Description:
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MaterialsScienceinSemiconductorProcessing14(2011)58–61 |
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URI:
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http://dyuthi.cusat.ac.in/purl/4724
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Date:
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2011 |