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김효선 ( Hyo Seon Kim ),오희봉 ( Hee Bong Oh ),류혁현 ( Hyukhyun Ryu ),이원재 ( Won Jae Lee ) 대한금속재료학회(구 대한금속학회) 2015 대한금속·재료학회지 Vol.53 No.7
In this study, cupric oxide (CuO) thin films were grown on fluorine doped tin oxide(FTO) substrate by using spin coating method. We investigated the effects of thermal annealing temperature and thermal annealing duration on the morphological, structural, optical and photoelectrochemical properties of the CuO film. From the results, we could find that the morphologies, grain sizes, crystallinities and photoelectrochemical properties were dependent on the annealing conditions. As a result, the maximum photocurrent density of -1.47 mA/cm2 (vs. SCE) was obtained from the sample with the thermal annealing conditions of 500 ℃ and 40 min.
UVO 표면 전처리에 따른 Cu2O 성장 및 광 전극 특성 연구
이후중 ( Hu Joong Lee ),김태겸 ( Tae Gyoum Kim ),오희봉 ( Hee-bong Oh ),류혁현 ( Hyuk Hyun Ryu ),이원재 ( Won-jae Lee ) 대한금속재료학회(구 대한금속학회) 2015 대한금속·재료학회지 Vol.53 No.6
Ultraviolet ozone (UVO) surface-treatment was carried out on fluorine-doped tin oxide (FTO) substrate prior to the growth of Cu2O thin-films by electrochemical deposition. This was done to improve their photo-electrochemical properties. We examined the effect of various durations of UVO surface-treatment on the morphological, structural, optical and photo-electrochemical properties of Cu2O thin-films. The effects were measured via field-emission scanning-electron microscopy (FE-SEM), X-ray diffraction (XRD), UV-visible spectroscopy and 3-electrode potentiostat, respectively. The highest photocurrent density (4.22 mA/cm2) was achieved with a 2-minute UVO surface-treatment.(Received August 19, 2014)