| Title |
Photoelectrochemical Properties of CuO Grown by Using a Modified Chemical Bath Deposition Method |
| Authors |
하진욱(Jin Wook Ha); 류혁현(Hyuk Hyun Ryu); 이원재(Won Jae Lee) |
| DOI |
https://doi.org/10.3365/KJMM.2016.54.6.435 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
cupric oxide; photoelectrode; photoelectrochemical; nanorod; growth duration |
| Abstract |
In this study, cupric oxide (CuO) nanorods were grown on the fluorine-doped tin oxide (FTO) glass substrate using a modified-chemical bath deposition (M-CBD) method. We investigated the morphology, structural, optical and photoelectrochemical properties of the cupric oxide nanorods with various growth durations by using field-emission scanning-electron microscopy (FE-SEM), X-ray diffraction (XRD), UV-visible spectroscopy (UV-vis) and three-electrode potentiostat, respectively. In this work, we found that the morphologies, thickness, growth rate, crystallinities, grain sizes and optical bandgap were controllable on the growth duration, which affected photocurrent density and photo-stability. The highest growth rate of CuO nanorods was 126 nm/min. From the XRD measurement, we also confirmed that (020) directional growth affected the growth of the CuO nanorods. A maximum photocurrent density of-1.88 mA/cm² at -0.55 V (vs. SCE) and high photo-stability value about 40 % was obtained with 10 minutes growth duration. (Received November 5, 2015) |