简介：ZnTe/ZnTe∶Culayerisusedasacomplexbackcontact.TheparametersofCdTesolarcellswithandwithoutthecomplexbackcontactsarecompared.Theeffectsofun-dopedlayerthickness,dopedconcentrationandpost-depositionannealingtemperatureofthecomplexlayeronsolarcellsperformanceareinvestigated.TheresultsshowthatZnTe/ZnTe∶CulayercanimprovebackcontactsandlargelyincreasetheconversionefficiencyofCdTesolarcells.Un-dopedlayerandpost-depositionannealingofhightemperaturecanincreaseopenvoltage.Usingthecomplexbackcontact,asmallCdTecellwithfillfactorof73.14%andconversionefficiencyof12.93%isobtained.
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