scholarly journals Efficiency improvement in dye sensitized solar cells by the plasmonic effect of green synthesized silver nanoparticles

2017 ◽  
Vol 2 (4) ◽  
pp. 418-424 ◽  
Author(s):  
S. Saravanan ◽  
R. Kato ◽  
M. Balamurugan ◽  
S. Kaushik ◽  
T. Soga
2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Marko Berginc ◽  
Urša Opara Krašovec ◽  
Marko Topič

A plasmonic effect of silver nanoparticles (Ag NPs) in dye-sensitized solar cells (DSSCs) is studied. The solutions of silver nitrate in isopropanol, ethylene glycol, or in TiO2sol were examined as possible precursors for Ag NPs formation. The solutions were dip-coated on the top of the porous TiO2layer. The results of optical measurements confirmed the formation of Ag NPs throughout the porous TiO2layer after the heat treatment of the layers above 100°C. Heat treatment at 220°C was found to be optimal regarding the formation of the Ag NPs. The porous TiO2layers with Ag NPs have been evaluated also in DSSC by measuring current-voltage characteristics and the external quantum efficiency of the cells. In addition, the amount of adsorbed dye has been determined to prove the plasmonic effect in the cells. TheI-Vcharacterization of the DSSCs revealed an increase of the short circuit current in the presence of Ag NPs although the amount of the attached dye molecules decreased. These results confirm that the performance enhancement is related to the plasmonic effect. However, neither a thin sol-gel TiO2layer nor poly(4-vinylpyridine) shells provide effective protection for the long term stability of the Ag NPs against the corrosion ofI3-/I-based electrolyte.


Optik ◽  
2021 ◽  
Vol 231 ◽  
pp. 166429
Author(s):  
Agus Supriyanto ◽  
Diani Galih Saputri ◽  
Mohd Khairul Bin Ahmad ◽  
Ari Handono Ramelan ◽  
Febrina Ramadhani

2021 ◽  
Vol 22 (2) ◽  
pp. 53
Author(s):  
Matius Nata Pakpahan ◽  
Aldi Hartanto ◽  
Yonatan Davidson Gultom ◽  
Nur Fadhilah ◽  
Doty Dewi Risanti

A SYNERGISTIC ABSORPTION AND PLASMONIC EFFECT OF SiO2@Au@TiO2 IN A TiO2 PHOTOANODE FOR DYE-SENSITIZED SOLAR CELLS. A method for increasing the visible-light harvesting of a TiO2 anatase photoanode in dye-sensitized solar cells by incorporating plasmonic nanostructures was developed. Sidoarjo mud as the SiO2 source was used to successfully synthesized core/multishell SiO2@Au@TiO2, with varying amounts of Au (60, 90, and 120 mL). In addition, the core/multishell fractions in TiO2 paste were varied, i.e., 0.5%, 1%, and 5%. The UV–Vis spectrum shows that a more ripple spectrum at higher wavelengths is obtained with increasing Au content, as suggested by the presence of large Au nanoparticles; however, a similar value of efficiency is observed for all sample variations studied compared to a pure TiO2 photoanode. The incident photon-to-current efficiency reveals that all photoanodes containing the core/multishell SiO2@Au@TiO2 studied show somewhat broader and enhanced spectra for all studied wavelengths compared to the pure TiO2 photoanode, resulting from the synergistic effect between plasmonic nanostructures and the presence of silica that boost the absorption to higher wavelengths.


2015 ◽  
Vol 152 ◽  
pp. 101-107 ◽  
Author(s):  
Omid Amiri ◽  
Masoud Salavati-Niasari ◽  
Mostafa Farangi ◽  
Mehdi Mazaheri ◽  
Samira Bagheri

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