Premium
A Simple Synthetic Route to Obtain Pure Trans ‐Ruthenium(II) Complexes for Dye‐Sensitized Solar Cell Applications
Author(s) -
Barolo Claudia,
Yum JunHo,
Artuso Emma,
Barbero Nadia,
Di Censo Davide,
Lobello Maria Grazia,
Fantacci Simona,
De Angelis Filippo,
Grätzel Michael,
Nazeeruddin Mohammed Khaja,
Viscardi Guido
Publication year - 2013
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201200973
Subject(s) - ruthenium , photocurrent , ligand (biochemistry) , photochemistry , solar cell , chemistry , dye sensitized solar cell , materials science , organic chemistry , catalysis , optoelectronics , electrode , electrolyte , biochemistry , receptor
We report a facile synthetic route to obtain functionalized quaterpyridine ligand and its trans ‐dithiocyanato ruthenium complex, based on a microwave‐assisted procedure. The ruthenium complex has been purified using a silica chromatographic column by protecting carboxylic acid groups as iso ‐butyl ester, which are subsequently hydrolyzed. The highly pure complex exhibits panchromatic response throughout the visible region. DFT/time‐dependent DFT calculations have been performed on the ruthenium complex in solution and adsorbed onto TiO 2 to analyze relative electronic and optical properties. The ruthenium complex endowed with the functionalized quaterpyridine ligand was used as a sensitizer in dye‐sensitized solar cell yielding a short‐circuit photocurrent density of more than 19 mA cm −2 with a broad incident photon to current conversion efficiency spectra ranging from 400 to 900 nm, exceeding 80 % at 700 nm.