Enhanced dye-sensitized solar cell performance using strontium titanate perovskite integrated photoanodes modified with plasmonic silver nanoparticles

R. Sasikala, M. Kandasamy, S. Suresh, V. Ragavendran, V. Sasirekha, J. M. Pearce, S. Murugesan, J. Mayandi*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

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 - and fast photo-induced electron transfer caused by the plasmonic Ag NPs.

Original languageEnglish
Article number161693
JournalJournal of Alloys and Compounds
Volume889
DOIs
Publication statusPublished - 5 Jan 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • Ag-SrTiO plasmonic nanocomposites
  • Dye-sensitized solar cell
  • Plasmonic photovoltaics
  • Power conversion efficiency
  • SrTiO perovskite

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