| Pacific Rim Symposium on Surfaces, Coatings and Interfaces (PacSurf 2016) | |
| Energy Harvesting & Storage | Wednesday Sessions |
| Session EH-WeP |
| Session: | Energy Harvesting & Storage Poster Session |
| Presenter: | David Selvaraj, Division of Biotechnology, Brain Korea 21 Plus Program, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Korea |
| Authors: | M.A. Mahadik, Division of Biotechnology, Brain Korea 21 Plus Program, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Republic of Korea P. Shinde, Division of Biotechnology, Brain Korea 21 Plus Program, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Republic of Korea D. Selvaraj, Division of Biotechnology, Brain Korea 21 Plus Program, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Korea H.H. Lee, Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Republic of Korea M. Cho, Division of Biotechnology, Brain Korea 21 Plus Program, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Republic of Korea J.S. Jang, Division of Biotechnology, Brain Korea 21 Plus Program, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Republic of Korea |
| Correspondent: | Click to Email |
A simple and effective strategy was used to fundamentally improve the performance of a Ni(OH)2 loaded CdS cased ZnIn2S4/TiO2 heterostructured photoanode. TiO2 nanorods grown hydrothermally on fluorine-doped tin oxide (FTO) and annealed at 500°C yielded an optimal photocurrent density of ~ 988 μA cm–2 at 0.1 V vs. Ag/AgCl under simulated one sun illumination. The annealing effect minimized the defects in TiO2 and assisted the formation of compact contacts between the FTO and TiO2 nanorods for efficient electron transport. The stepwise introduction of ZnIn2S4 and CdS on annealed TiO2 enhanced the absorption in the visible spectrum range and electron/hole separation in CdS cased ZnIn2S4/TiO2. Additionally, the Ni(OH)2 cocatalyst functioned in hole trapping and improved the stability of the photoelectrode through timely consumption of the photogenerated charges, particularly the holes. The photoelectrical performances studied under AM1.5G illumination shows the 3D heterostructure generate a photocurrent of approximately 1.9 mA cm−2, and is stable up to 60 min.