Synthesis and characterization of microwave-assisted TiO2 nanoparticles for dye -sensitized solar cell application

被引：0
|
作者：
Arun, Priyanka [1 ]
Raguram, T. [1 ]
Menon, P. Malavika [1 ]
Sajna, P. J. [1 ]
Rajni, K. S. [1 ]
机构：
[1] Amrita Vishwa Vidyapeetham, Amrita Sch Engn, Dept Sci, Coimbatore, Tamil Nadu, India
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2020年 / 14卷 / 9-10期
关键词：
DSSC; TiO2; Microwave; XRD; Optical; J-V; TITANIUM-DIOXIDE; LATTICE STRAIN; NANOCRYSTALS; TEMPERATURE; ACID;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 O-2(-) 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%.
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页码：445 / 451
页数：7
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