25 November 1980 Composition Analysis of Heterojunctions by Means of Electron and Optical Spectroscopies
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Auger electron and atomic absorption spectroscopies (AES and AAS) have been used to measure compositions of Cu2S/ZnxCd1-xS heterojunctions. A Zn rich region near the Cu2S-ZnCdS interface is verified by both techniques. For Cu2S films grown by aqueous ion-exchange the amount of Zn enrichment at the interface increased with Cu2S film thickness. Zn, Cd, Cl and 0 were detected by AES on the Cu2S surface, with the Zn and Cd extending into the Cu2S bulk. Amounts of Zn and Cd measured in the Cu2S by means of AAS are less than about 0.1 atomic percent.
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M. C. Grender, M. C. Grender, P. N. Uppal, P. N. Uppal, L. C. Burton, L. C. Burton, L. Rivaud, L. Rivaud, J. E. Greene, J. E. Greene, "Composition Analysis of Heterojunctions by Means of Electron and Optical Spectroscopies", Proc. SPIE 0248, Role of Electro-Optics in Photovoltaic Energy Conversion, (25 November 1980); doi: 10.1117/12.970587; https://doi.org/10.1117/12.970587

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