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Influence of iodide source on the performance of liquid and silica nanoparticle-loaded quasi-solid electrolyte-based dye-sensitized solar cells

DSpace at IIT Bombay

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Title Influence of iodide source on the performance of liquid and silica nanoparticle-loaded quasi-solid electrolyte-based dye-sensitized solar cells
 
Creator MOHANTY, SP
BHARGAVA, P
 
Subject NANOCRYSTALLINE TIO2
Dye-sensitized solar cell
Gel electrolyte
Zeta potential
Adsorption
Cation
 
Description Presence of cations from iodide source in liquid electrolyte has strong influence on photoelectrochemical characteristics of dye-sensitized solar cells (DSSCs). The present work shows the effect of different cations in liquid and silica-loaded gel electrolyte on the photovoltaic properties of DSSCs. Zeta potential measurements have been carried out to probe into the adsorption behavior of ions. It has been found out that lithium ions being smaller in size as compared to 1-methyl-3-propylimidazolium and tetrabutylammonium ions effectively get adsorbed onto the surface of silica nanopowder. Liquid and gel electrolytes were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. In DSSCs, it was found that silica nanopowder addition to lithium ions-based liquid electrolyte significantly increases the open-circuit voltage as compared to the other two ions used in the study. This is due to adsorption of lithium ions onto silica surface which retards such ions to intercalate into or adsorb onto titania.
 
Publisher SPRINGER HEIDELBERG
 
Date 2016-01-14T12:19:33Z
2016-01-14T12:19:33Z
2015
 
Type Article
 
Identifier IONICS, 21(3)849-854
0947-7047
1862-0760
http://dx.doi.org/10.1007/s11581-014-1237-6
http://dspace.library.iitb.ac.in/jspui/handle/100/17480
 
Language en