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      • 알루미늄이 도핑 된 산화아연 나노입자의 합성에 관한 연구

        신치호 ( Chi Ho Shin ),김현종 ( Hun Jong Kim ),이호년 ( Ho Yen Lee ),한명근 ( M. K. Han ),신태욱 ( T. W. Shin ),임병태 ( B. T. Lim ) 한국공업화학회 2010 응용화학 Vol.14 No.1

        Zinc oxide (ZnO) has attracted much attention for a long time since it shows wide range of application such as ultra-violet absorbents, photocatalysts, photo-detector, and transistors, due to its wide band gap (3.37 eV) and large exciton binding energy (60 mV). Wide varieties of synthesis techniques have thus been developed to produce this material in different forms. They are, for instance, sol-gel process, hydrothermal process, hydrothermal process, and chemical vapor deposition. The wide band gap of ZnO can be reduced by controllably introducing non-stoichiometry and/or appropriate dopants for actual application in photocatalysts working at visible range. Recently, doping of ZnO could be achieved by replacing Zn2+ions with the ions of elements of higher valency such as Ga, Al, Co and In, or with the ions of transition metals, which was inducing drastic changes in its electrical and optical properties. ZnO and Aluminum doped ZnO particles were prepared by polyol process in different conditions. The effect of zinc concentration and dopant on structural, morphological, optical properties was investigated.

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