Publication: Facile synthesis of reduced graphene oxide and graphitic carbon nitride modified titanium dioxide nanospheres for photoanode of dye-sensitized solar cell
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Date
2024
Authors
Chinnarani M.
Suresh S.
Prabu K.M.
Kandasamy M.
Pugazhenthiran N.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B.V.
Abstract
Titanium dioxide/reduced graphene oxide nanocomposites (TiO2/rGO NCs) have been broadly utilized as photoanode materials for dye-sensitized solar cell (DSSC). Nevertheless, photoelectric conversion efficiency (PCE) of DSSC is diminished due to recombination of charges takes place between photoanode and electrolyte interface. Herein, we have prepared a triplet structure nanocomposite composed of TiO2 nanospheres, rGO and graphitic carbon nitride (TiO2 NS/rGO/g-C3N4 NC) for photoanode of DSSC. The ternary TiO2 NS/rGO/g-C3N4 NC photoanode has enhanced dye absorption considerably and as a consequence, improved light harvesting efficiency. Besides, the introduction of rGO and g-C3N4 on the TiO2 NS has effectually speeded up the transport of electrons and minimized the recombination of photogenerated charges. Consequently, the DSSC integrated with ternary TiO2 NS/rGO/g-C3N4 NC photoanode has exhibited ?41 % increment in the PCE of 5.77 % when compared to PCE of the pristine TiO2 NS photoanode (4.10 %). This finding has proposed a simplistic approach to advance photovoltaic performance of the DSSC. ? 2023 Elsevier B.V.
Description
Keywords
Carbon nitride , Conversion efficiency , Dye-sensitized solar cells , Electrolytes , Graphene , Nanocomposites , Nanospheres , Photoelectricity , Solar power generation , Tin dioxide , Tin oxides , TiO2 nanoparticles , Titanium nitride , Dye- sensitized solar cells , Facile synthesis , Graphitic carbon nitrides , Photo-anodes , Photo-electric conversion efficiency , Photovoltaic performance , Reduced graphene oxides , Ternary nanocomposites , TiO2 nanosphere , TiO2 NS/rGO/g-C3N4 NC photoanode , Titanium dioxide