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PRIYANKA ARUN1, T. RAGURAM1, P. MALAVIKA MENON1, P. J. SAJNA1, K. S. RAJNI1,*
In the present work, microwave-assisted TiO2 nanoparticles are prepared by varying the pH (3, 5 and 7) of the precursor solution. XRD results show a mixture of anatase and rutile phases. Microstructural analysis calculated for the peak (110)r shows the crystallite size of 7 to 11 nm. From UV-DRS studies, a strong absorption is found at 415 nm and it is blue-shifted when the pH is increased from 3 to 7 and bandgap varies from 4.2 to 3.0 eV. From FTIR spectral analysis, the bending vibrations of Ti-O and Ti-O-Ti are confirmed. PL spectrum shows excitonic emission band and O2- vacancies at 440, 467, 532 and 542 nm. DSSC is fabricated with Eosin Blue as the sensitizer and TiO2 working electrode, the efficiency is found to be 1.60%..
DSSC, TiO2, Microwave, XRD, Optical, J-V.
PRIYANKA ARUN, T. RAGURAM, P. MALAVIKA MENON, P. J. SAJNA, K. S. RAJNI, Synthesis and characterization of microwave-assisted TiO2 nanoparticles for dye-sensitized solar cell application, Optoelectronics and Advanced Materials - Rapid Communications, 14, 9-10, September-October 2020, pp.445-451 (2020).
Submitted at: Nov. 11, 2019
Accepted at: Oct. 21, 2020
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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