Issue 13, 2014

Ruthenium(ii) multi carboxylic acid complexes: chemistry and application in dye sensitized solar cells

Abstract

Novel ruthenium multi carboxylic complexes (RMCCs) have been synthesized by using ruthenium nitrosyl nitrate, 1,2,4,5-benzenetetracarboxylic acid (H4btec) and 4,7-diphenyl-1,10-phenanthroline (BPhen) as photosensitizers for titanium dioxide semiconductor solar cells. The complexes were characterized by 1H-NMR, FT-IR, UV–Vis, ICP and CHN analyses. The reaction details and features were then described. SEM analysis revealed that the penetration of dyes into the pores of the nanocrystalline TiO2 surface was improved by increasing the number of btec units. The solar energy to electricity conversion efficiency of complexes shows that the number of attached carboxylates on a dye has an influence on the photoelectrochemical properties of the dye-sensitized electrode. An incident photon-to-current conversion efficiency (IPCE) of 13% at 510 nm was obtained for ruthenium complexes with three btec units.

Graphical abstract: Ruthenium(ii) multi carboxylic acid complexes: chemistry and application in dye sensitized solar cells

Supplementary files

Article information

Article type
Paper
Submitted
31 Jul 2013
Accepted
14 Jan 2014
First published
14 Jan 2014

Dalton Trans., 2014,43, 5158-5167

Ruthenium(II) multi carboxylic acid complexes: chemistry and application in dye sensitized solar cells

H. Shahroosvand, F. Nasouti and A. Sousaraei, Dalton Trans., 2014, 43, 5158 DOI: 10.1039/C3DT52078A

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