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Effect of Thickness in Carbon Nanotube Electrode Layer for Electrochemi-Luminescence Cells Applications
Pakpoom Chansri*, Pattarapon Pooyodying** and Youl Moom Sung
Abstract The nanoelectrode layer in electrochemi-luminescence (ECL) cells can be improved the performance of light intensity. In this work, the ECL cells were fabricated using carbon nanotubes (CNT) and Ru(II) complex as a luminescent material. We reported to the effect of the thickness of the CNTs layer in ECL cell. The produced ECL cell consists of F-doped SnO2 (FTO) glass/Ru(II)/ thickness of CNTs/FTO glass. At 3.5 V, the measured highest current and highest luminance of CNTsbased on ECL cells was 48 mA and 15.02 cd/m2 at CNT-5 m. The maximum of ECL efficiencies was 0.00893 lm/W for CNT-5 m. When, the applied voltage increases at 4-5 V is causing to maximum ECL efficiency for CNTs-based on ECL cell. The peak intensity of thickness of CNTs-based on ECL cell was 620 nm of CNTs and 625 nm of without CNT, which is a similar color and responded dark orange color, were not affected to the added electrode material. The ECL cell with CNTs showed optimum for light emission was the thickness of CNT-5 m electrode. The use of CNTs-based on ECL cell significantly improves the ECL efficiency and long-term stability
Keyword Electrochemi-luminescence (ECL) cells, Carbon nanotube, Ru(II) complex
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