Sonochemical Synthesis of Titania Nanoparticles and Their Application for Photovoltaic Devices
A simple and efficient methodology has been established for the synthesis of pure anatase titania dioxide (TiO2) through a sonochemical process. By controlling the experimental condition, the particle sizes of nanocrystalline TiO2 are nanometric (∼ 10 nm). Field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), infrared spectrum (FTIR), and X-ray diffraction (XRD) were used to characterize the morphology, structure and crystal formation of the as-prepared TiO2 based thin films. Subsequently, the photovoltaic performance of the obtained nanocrystalline particles based thin films in dye sensitized solar cells was investigated. The maximum energy conversion efficiency of 3.23% was achieved based on the obtained nanoparticles via sonochemistry, which is slightly better than those prepared from the commercial P25. The presence of TiO2 nanoparticles with smaller particle-size prepared via sonochemistry are beneficial to improving the dye absorption, which leads to the enhancement of the conversion efficiency.
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Document Type: Short Communication
Publication date: July 1, 2014
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- Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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