To make a porous structure of electrodeposition-generated zinc oxide-based compound film finely uniform.
An aqueous solution prepared to have KCL of 0.1 M is used and oxygen is bubbled for 20 minutes, provided that for the last one minute, a current is required to be passed by regulating the potential of a working electrode (conductive ITO glass) with respect to a reference electrode to -1.1V (pretreatment process), and thereby a cathode electrolysis is executed in the electrolytic solution to which neither zinc salt nor template component is added. Also, the flow of an electrolytic solution uniform with respect to the working electrode is created by a stirring operation during the pretreatment process. The maximum stirring speed of this time is set at 11 cm/sec. The transition of the current density on the surface of the working electrode during the execution of the pretreatment process is illustrated in figure 2. The current density of this time on the surface of the working electrode is stabilized in the final at about 1.3 [mA/cm
COPYRIGHT: (C)2007,JPO&INPIT
Hiromitsu Takeuchi
Hideki Minoura
Tsukasa Yoshida
Nagoya Institute of Industrial Science
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