| Title |
Fabrication of ZnO Nanorod-based Electrochemical Luminescence Cells and Fundamental Luminescence Properties |
| Authors |
오형석(Oh, Hyung-Suk) ; 성열문(Sung, Youl-Moon) |
| DOI |
https://doi.org/10.5370/KIEE.2014.63.1.076 |
| Keywords |
ZnO nanorod ; ECL ; Ruthenium ; FTO glass ; Luminescence |
| Abstract |
We report Zinc oxide (ZnO) nanorods synthesis and electrochemical luminescence (ECL) cell fabrication. The ECL cell was fabricated using the electrode of ZnO nanorods and Ru(II) complex (Ru(bpy)_3{^{2+}}) as a luminescence materials. The fabricated ECL cell is composed of F-doped SnO_2 (FTO) glass/ Ru(II)/ZnO nanorods/FTO glass. The highest intensity of the emitting light was obtained at the wavelength of ~620 nm which corresponds to dark-orange color. At a bias voltage of 3V, the measured ECL efficiencies were 5 cd/m^2 for cell without ZnO nanorod, 145 cd/m^2 for ZnO nanorods-5μm, 208 cd/m^2 for ZnO nanorods-8μm and 275 cd/m^2 for ZnO nanorods-10μm, respectively. At a bias voltage of 3.5V, the use of ZnO nanorods increases ECL intensities by about 3 times compared to the typical ECL cell without the use of ZnO nanorods. |