4′-functionalized 2,2′:6′,2′′ terpyridine ruthenium (II) complex: a nanocrystalline TiO<sub>2</sub> based solar cell sensitizer
Anthonysamy, Arockiam; Balasubramanian, Sengottuvelan; Muthuraaman, Bhagavathiachari; Maruthamuthu, Pichai; Anthonysamy, Arockiam; Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai-600 025, India; Balasubramanian, Sengottuvelan; Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai-600 025, India ;; Muthuraaman, Bhagavathiachari; Department of Energy, University of Madras, Guindy Campus, Chennai-600 025, India; Maruthamuthu, Pichai; Department of Energy, University of Madras, Guindy Campus, Chennai-600 025, India
Журнал:
Nanotechnology
Дата:
2007-03-07
Аннотация:
The synthesis of an Ru(II) complex derived from 4′-(4-methacryloyloxymethylphenyl)- 2,2′:6′,2′′ terpyridine ligand, together with its spectral and electrochemical properties, has been described. The application of this complex, which does not possess the usual anchoring groups like carboxylate or phosphate, in a dye sensitized nanocrystalline TiO<sub>2</sub> solar cell has indicated a short circuit current of 0.252 mA, an open circuit potential of 377 mV with an overall efficiency of 3.63%. The overall conversion efficiency of the system remains stable for a long period due to the efficient electron injection into the conduction band during light absorption. The high resolution scanning electron microscopy picture reveals a three-dimensional network of interconnected nanoscale particles, while x-ray diffraction studies show that the particle size is 21 nm.
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