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Synthesis of TiO 2 nanostructures by green approach as photoanodes for dye‐sensitized solar cells
Author(s) -
Senthamarai Rajkumar,
Madurai Ramakrishnan Venkatraman,
Palanisamy Balraju,
Kulandhaivel Suguna
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6002
Subject(s) - dye sensitized solar cell , anatase , raman spectroscopy , materials science , fourier transform infrared spectroscopy , nanostructure , nanorod , band gap , scanning electron microscope , spectroscopy , chemical engineering , field emission microscopy , nanotechnology , analytical chemistry (journal) , nuclear chemistry , chemistry , diffraction , optoelectronics , photocatalysis , optics , organic chemistry , composite material , electrolyte , engineering , electrode , physics , quantum mechanics , catalysis
Summary Clean and green energy being worlds priority today, here in this work TiO 2 nanostructures were prepared via green route using the fruit extracts derived from pineapple, orange, and grapes as reducing agents respectively. The anatase phase of the prepared TiO 2 nanostructures was confirmed through the X‐ray diffraction pattern and the Raman analysis, respectively. Field emission scanning electron microscope (FESEM) images of the samples was found to exhibit nanorods like morphology. Further, the functional groups and the optical properties of the synthesized TiO 2 and Murraya koenigii fruit dye were confirmed using Fourier‐transform infrared spectroscopy (FT‐IR) and UV‐Vis spectroscopy, respectively. From the Tauc plot, the indirect bandgap values of the TiO 2 nanostructures were calculated. Using the prepared TiO 2 nanostructures as photoanodes dye‐sensitized solar cells were fabricated and its performance was studied. In this work, two different dyes such as the natural extract derived from the fruit skin of Murraya koenigii and the commercial N719 dye were used as sensitizers.