Fundamental Studies of the Effect of Crystal Defects on CuInSe2/CdS Heterojunction Behavior
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Cd doping at the CuInSe2 ÕCdS heterojunction
The chemical composition of the CuInSe2 /CdS heterojunction interface is investigated by angle resolved x-ray photoelectron spectroscopy, Auger electron spectroscopy, and secondary ion mass spectroscopy in combination with selective etching of CdS. We demonstrate that ;0.8 monolayer of Cd is incorporated into the first 1–3 atomic layers of the CuInSe2 . This is accompanied by significant Cu dep...
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