Simultaneous growth of rutile TiO2 as 1D/3D nanorod/nanoflower on FTO in one-step process enhances electrochemical response of photoanode in DSSC |
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| Institution: | 1. The Research Institute of Advanced Engineering Technology, Chosun University, Gwangju 501-759, Republic of Korea;2. Clinical Research Facility, CSIR-Center for Cellular and Molecular Biology, Hyderabad 500007, Andhra Pradesh, India;1. Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, People''s Republic of China;2. Department of Physics, Annamalai University, Annamalai Nagar, Chidambaram 608002, Tamilnadu, India |
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| Abstract: | Simultaneous growth of 1D/3D-nanorod/nanoflower like structures of TiO2 on fluorine doped tin oxide (FTO) glass substrates has been achieved in one-step hydrothermal process. X-ray diffraction (XRD) pattern confirms the formation of rutile phase whereas enhanced light scattering in 1D/3D nanorod/nanoflower TiO2 photoanode was observed at longer wavelengths of 600–750 nm. Dye sensitized solar cell (DSSC) prepared with 1D/3D-nanorod/nanoflower structures had about 90% increases in efficiency as compared to 1D nanorod like structure. Thus, simultaneous assembly of TiO2 as 1D/3D-nanorod/nanoflower like structure without significant change in their surface oxidation states (Ti3 + and Ti4 +) had better capabilities for light harvesting and efficient electron transportation for improving electrochemical responses of photo-electrode in DSSC to achieve higher sensitivity. |
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