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Type Paper
Year 2021
Cite as Citation reference for the source document. Sasikala, R., Kandasamy, M., Suresh, S., Ragavendran, V., Sasirekha, V., Pearce, J.M., Murugesan, S. and Mayandi, J., 2021. Enhanced Dye-Sensitized Solar Cell Performance using Strontium Titanate Perovskite Integrated Photoanodes Modified with Plasmonic Silver Nanoparticles. Journal of Alloys and Compounds, 889, 161693. academia

Plasmonic silver nanoparticles loaded strontium titanate nanocomposites (Ag-SrTiO3 NC) with diverse weight percentages (0.5, 1.5, 2.5 and 5 wt%) of Ag nanoparticles (Ag NPs) are synthesized by a facile chemical reduction method. The prepared nanocomposites are characterized using diffuse reflectance spectroscopy, X-ray diffractometry, photoluminescence spectroscopy, scanning electronic microscopy and transmission electron microscopy. The photovoltaic performance of dye-sensitized solar cells (DSSCs) integrated with Ag-SrTiO3 NC photoanodes has been assessed under simulated sun light intensity of 100 mW cm–2. The Ag-SrTiO3 NC photoanode loaded with 2.5 wt% Ag NPs exhibited higher power conversion efficiency of 4.39% with short-circuit photocurrent density of 11.54 mA cm−2, open circuit voltage of 0.77 V and fill factor of 0.49 in DSSC. This enhanced photovoltaic performance can be credited to high dye loading, improvement in visible light harvesting property and fast photo-induced electron transfer caused by the plasmonic Ag NPs.

Keywords[edit | edit source]

SrTiO3; perovskite;Ag-SrTiO3; plasmonic nanocomposites;Dye-sensitized solar cell;Plasmonic photovoltaics;Power conversion efficiency

Highlights[edit | edit source]

  • Ag-SrTiO3NCs were prepared by a facile chemical reduction method and employed as photoanode of DSSC.
  • Surface plasmon resonance feature of Ag NPs improves light scattering in the Ag-SrTiO3 NC photoanode.
  • Reduced charge recombination and enhanced charge transfer in the Ag-SrTiO3 NC lead to improved DSSC efficiency.

See also[edit | edit source]

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