Local atomic environment of Cu:CdTe thin film alloys
We have used X-ray absorption spectroscopy of the K-edge of each element in a Cd0.85Cu0.15Te thin film to investigate the local atomic structure around each constituent element. X-ray absorption near edge spectra reveal that the local electronic structure around Cd and Te atoms is similar to that of...
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Published in | Microelectron. J Vol. 31; no. 6; pp. 429 - 431 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Elsevier Ltd
01.06.2000
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Subjects | |
Online Access | Get full text |
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Summary: | We have used X-ray absorption spectroscopy of the K-edge of each element in a Cd0.85Cu0.15Te thin film to investigate the local atomic structure around each constituent element. X-ray absorption near edge spectra reveal that the local electronic structure around Cd and Te atoms is similar to that of undoped CdTe, while that of Cu is different from that encountered in Cu metal. X-ray absorption fine structure spectra show that while the Cd near neighbor environment is similar to that of undoped CdTe, the Te environment shows differences compared with that found in undoped CdTe, consistent with Cu entering substitutionally for Cd. The Cu nearest neighbor environment suggests the presence of Cu–metal ligands characteristic of Cu metal clusters. These results imply the occurrence of microscopic phase separation in this material in variance with X-ray diffraction results that show a single crystalline phase. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 FOR USDOE Office of Science (SC) DE-AC02-06CH11357 ANL/MSD/JA-35403 |
ISSN: | 1879-2391 0026-2692 1879-2391 |
DOI: | 10.1016/S0026-2692(00)00010-0 |