Local Atomic Structure and Electronic State of ZnS Films Synthesized by Using CBD Technique

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  • Local atomic structure and electronic state of ZnS film synthesized by using CBD technique

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Abstract

We have succeeded in synthesizing ZnS films on substrates such as glass or Si wafer by using CBD (chemical bath deposition) method. These semiconductor films were photocatalytic and showed high productivity of hydrogen gas from the solution containing HS− ions. From observation of SEM/TEM, it was found that the cluster film consisted of 100 nm sized agglomerated particles composed of nano-crystals. The result of EDS analysis for the cross-section of the film prepared by using FIB showed the presence of small amounts of oxygen along with zinc and sulfur. The information of the local quantum structures obtained from EXAFS/XANES analysis suggested that the cluster film has unique atomic-distribution and metastable electronic state different from bulk ZnS and ZnO. Based on the results of the above analysis, the relation between local quantum structures and properties was proposed.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 43 (7), 1512-1516, 2002

    The Japan Institute of Metals and Materials

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