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Green synthesis of Ag and the effect of Ag on the efficiency of TiO2 based dye sensitized solar cell

Authors
  • Solaiyammal, T.1
  • Muniyappan, S.1
  • Keerthana, B. Gomathi Thanga1
  • Nemala, Siva Sankar2
  • Bhargava, Parag2
  • Murugakoothan, P.1
  • 1 Pachaiyappa’s College, MRDL, PG and Research Department of Physics, Chennai, 600 030, India , Chennai (India)
  • 2 Indian Institute of Technology Bombay, Metallurgical Engineering and Materials Science Department, Mumbai, 400076, India , Mumbai (India)
Type
Published Article
Journal
Journal of Materials Science Materials in Electronics
Publisher
Springer-Verlag
Publication Date
Jul 05, 2017
Volume
28
Issue
20
Pages
15423–15434
Identifiers
DOI: 10.1007/s10854-017-7429-x
Source
Springer Nature
License
Yellow

Abstract

Green synthesis of silver nanoparticles (AgNPs) was carried out using the aqueous extract of Carcia papaya (commonly known as papaya) leaves as reducing and capping agent. The synthesized AgNPs colloid was mixed with titanium dioxide slurry to produce Ag:TiO2 nanocomposite. The as-synthesized AgNPs and Ag:TiO2 nanocomposite were characterized for structural, optical and morphological studies. Dye sensitized solar cells (DSSCs) were fabricated with pure TiO2 and Ag:TiO2 nanocomposite photoanodes using N719 dye and their performance was investigated. The power conversion efficiency of Ag:TiO2 nanocomposite DSSC is increased by about 33.5% when compared to the efficiency of the pure TiO2 DSSC. The electrochemical impedance spectroscopic measurements showed that Ag:TiO2 nanocomposite film effectively reduce the charge transfer resistance and also increased the lifetime of the electron.

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