Rapid synthesis of bis (2,2 '-bipyridine) nitratocopper(II) nitrate using a hydrothermal method and its application to dye-sensitized solar cells

Title
Rapid synthesis of bis (2,2 '-bipyridine) nitratocopper(II) nitrate using a hydrothermal method and its application to dye-sensitized solar cells
Author(s)
강미숙김영미[김영미]정종화[정종화]
Keywords
HIGHLY EFFICIENT; COMPLEXES; POLYMER; LIGAND; ACID
Issue Date
201101
Publisher
ELSEVIER SCIENCE SA
Citation
INORGANICA CHIMICA ACTA, v.365, no.1, pp.400 - 407
Abstract
In this study we synthesized bis (2,2'-bipyridine) nitratocopper(II) nitrate in order to examine its the crystal structure, optical property and application to dye-sensitized solar cells (DSSCs). Single X-ray analysis results revealed that the acquired complex exhibited five-coordination with four nitrogen atoms of bipyridine and the oxygen bond of the NO(3)(-) ion. The reflectance UV-Vis absorptions showed three absorptions that were assigned to ligand-to-ligand at around 230-350 nm, metal-to-ligand charge transfer at around 350-600 nm, and d-d transfer at around similar to 650 nm. Cyclic voltammetry in acetonitrile revealed a reversible Cu(I) -> Cu(II) oxidation process at a highest occupied molecular orbital (HOMO) and a lowest unoccupied molecular orbital (LUMO) levels of -4.692 and -4.071 eV, respectively. The photoelectric efficiency in DSSCs was approximately 0.032% with the nanometer-sized TiO(2) in the condition of an open-circuit voltage (V(oc)) of 0.346 V, a short-circuit current density (J(sc)) of 0.166 mA/cm(2) at an incident light intensity of 100 mW/cm(2). (C) 2010 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/25750http://dx.doi.org/10.1016/j.ica.2010.09.041
ISSN
0020-1693
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이과대학 > 화학생화학부 > Articles
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