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공업화학 촉매 / 반응공학 / 폴리피롤 동특석 연구에 대한 개량 순환 전압 측정법
이행자(Haeng Ja Lee),조홍식(Hong Sig Cho),박진영(Jin Young Park),장상목(Sang Mok Chang),김종민(Jong Min Kim) 한국화학공학회 2000 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.38 No.4
In this paper, we introduce a new experiment system of quartz crystal analyzer combined with UV/Vis spectroscopy. As an example of application, the electrochemical redox-process of polypyrrole has been investigated and the system was found to be effective to understand electrochemical mechanism occurred on the electrode surface. The QCA-UV/Vis system can provide plentiful analytical information, for the study of electrode/solution interface phenomena because the system can provide electrochemical, gravimetric and optical variables. In this paper, we suggest analytical relations for investigating the electrochromic, viscoelstic property, mass change and optical property of the film due to electrochemical redox-process induced mass transportation.
이행자,박경희,김종민,장상목,Lee, Haeng Ja,Park, Kyung Hee,Kim, Jong Min,Chang, Sang Mok 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.11
Effective surface area and morphology of a sensitive thin film are important factors for its applications in sensor systems for the analysis of physical properties. In this study, we investigated the morphologies, electrochemical properties, and applicability of zinc oxide multilayer thin films fabricated by electrodeposition and annealing. The microstructure and electrochemical properties of the zinc oxide films were dependent on temperature and applied voltage. The best characteristics were obtained at an applied voltage of -1.4 V and a temperature of $50^{\circ}C$. The morphologies also changed upon annealing. The results suggest that the zinc oxide films fabricated by electrodeposition and annealing can be applied as various sensor materials.