Journal
MATERIALS TODAY-PROCEEDINGS
Volume 3, Issue 6, Pages 2413-2421Publisher
ELSEVIER
DOI: 10.1016/j.matpr.2016.04.156
Keywords
TiO2 Nano-aggregates; Mesoporous stucture; Microwave synthesis; Photoanode; Dye-Sensitized Solar Cell
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Anatase TiO2 nanoparticles with high surface area has a great importance in the field of energy materials. Here, we report low temperature and rapid synthesis of direct anatase phase mesoporous TiO2 by microwave (MW) assisted sol-gel process for the application in Dye Sensitized Solar Cell (DSSC). Highly stable and monodisperse TiO2 nanoparticles are synthesized by varying parameters like reaction time, temperature, catalyst concentration, etc. The synthesized TiO2 nanoparticles were characterized by Dynamic Light Scattering (DLS), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET) analysis and Raman analysis. The average particle size of TiO2 nano-aggregates (TiO2-NAgs) of similar to 300-400 nm with the surface area similar to 135 m(2)/g, and the average pore-size of 2-4 nm were observed. The XRD data found to be in good agreement with standard JCPDS, which clearly confirms anatase phase of TiO2. Photovoltaic property of the DSSC fabricated using TiO2 nanoaggregates were studied and compared with the standard P25 TiO2 nanoparticles. Power Conversion Efficiency (PCE) of 6.16% has achieved for the DSSCs fabricated with TiO2-NAgs as photoanode as compared to 4.36% observed for DSSCs fabricated using P25 TiO2 nanoparticlesas photoanode. (C) 2015Elsevier Ltd. All rights reserved.
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