Comparative study of copper deposits obtained by thermal decomposition and photo-assisted chemical vapour deposition of 3-diketonate complexesReportar como inadecuado




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Abstract : The use of the Bathd2 precursor, in the elaboration of thin superconductor layers by OMCVD, is not satisfactory because its volatility decreases when it is kept at the sublimation temperature during the deposition. In order to avoid this problem, fluorine complexes, such as Bahfa2 can be used. Nevertheless, its thermal decomposition at high temperature induces the presence of baryum fluoride, which is harmful for obtaining superconductor films with high critical temperature. This work is aiming to study the elaboration of superconducting deposits at low temperature and without fluorine. We have undertaken a program based on a photo-assisted thermal decomposition of various organometallic compounds, which are used as precursors of superconductor layers. Photonic assistance enables to obtain copper deposits at 150°C. The results of the photo-assisted decomposition of Cuthd2 and Cuhfa2 are presented here.





Autor: M. Karsi A. Reynes R. Morancho

Fuente: https://hal.archives-ouvertes.fr/



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