A Simple Synthetic Route to Obtain Pure Trans‐Ruthenium(II) Complexes for Dye‐Sensitized Solar Cell Applications. Issue 11 (7th August 2013)

• Record Type: Journal Article
• Authors: Barolo, Claudia; Yum, Jun‐Ho; Artuso, Emma; Barbero, Nadia; Di Censo, Davide; Lobello, Maria Grazia; Fantacci, Simona; De Angelis, Filippo; Grätzel, Michael; Nazeeruddin, Mohammed Khaja; Viscardi, Guido
• Is Part Of: ChemSusChem. Volume 6:Issue 11(2013:Nov.)
• Page Start: 2170
• Page End: 2180
• Publication Date: 2013-08-07
• Subjects: Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201200973
• Languages: English
• ISSNs: 1864-5631

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>We report a facile synthetic route to obtain functionalized quaterpyridine ligand and its <italic>trans</italic>‐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 <italic>iso</italic>‐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 TiO₂ 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.</p> </abstract>