| Title |
Cu2O Growth and Photo-electrode Properties after UVO Surface Pre-treatment |
| Authors |
이후중(Hu Joong Lee); 김태겸(Tae Gyoum Kim); 오희봉(Hee-bong Oh); 류혁현(Hyuk Hyun Ryu); 이원재(Won-jae Lee) |
| DOI |
https://doi.org/10.3365/KJMM.2015.53.6.438 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
optoelectronic materials; surface modification; grain growth; scanning electron microscopy; SEM; photoelectrochemical |
| Abstract |
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) |