Electronic Properties of CdTe/CdS Solar Cells as Influenced by a Buffer Layer

  • PDF / 315,862 Bytes
  • 6 Pages / 432 x 648 pts Page_size
  • 3 Downloads / 193 Views

DOWNLOAD

REPORT


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³KDUGWRGRSH´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

937

(;3(5,0(17 



7KHVRODUFHOO&G6&G7HVWUXFWXUHVZHUHSUHSDUHGLGHQWLFDOO\H[FHSWIRULQWURGXFWLRQRI GLIIHUHQWEXIIHUOD\HUV=Q2=Q6DQG=Q6HRQ7(&JODVVFRYHUHGZLWKDFRQGXFWLYH WUDQVSDUHQW6Q2)HOHFWURGH>@7KHVRODUFHOOSDUDPHWHUVIRUHDFKVHULHVDUHVKRZQLQ7DEOH 1RFRSSHUZDVLQWURGXFHGGXULQJWKH$XFRQWDFWIRUPDWLRQ 7KHVRODUFHOOVZHUHFKDUDFWHULVHGE\XVLQJFDSDFLWDQFHYROWDJH C–V DQGDFDGPLWWDQFH PHDVXUHPHQWVFDUULHGRXWRQD6RODUWURQ,PSHGDQFH$QDO\]HUHTXLSSHGZLWKD 'LHOHFWULF,QWHUIDFH7KHWUDSHQHUJ\GLVWULEXWLRQVNt(E)ZHUHGHGXFHGIURPWKHFDSDFLWDQFH IUHTXHQF\UHVSRQVHVDSSO\LQJWKHDQDO\WLFDOPRGHOIRUpíií nMXQFWLRQDVSURSRVHGLQZRUN>@ $*DXVVLDQW\SHRIGHIHFWGLVWULEXWLRQZDVFRQVLGHUHG7RHQVXUHWKDWWKHFDUULHUIUHH]HRXW HIIHFWVGRQRWFRQWULEXWHWRWKHVWXGLHGacDGPLWWDQFHUHVSRQVHVWKHDFWLYDWLRQHQHUJ