1. Synthesis, Structural Characterisation, and Spectroscopic Properties of Copper(i) Complexes and their Applications to Dye-Sensitised Solar Cells.
- Author
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Ting-Hong Huang, Jie Yan, Ye-Feng Liu, Yun-Tao Xie, and Chen Jia
- Subjects
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SPECTRUM analysis , *SOLAR cells , *DIRECT energy conversion , *PHOTOVOLTAIC cells , *COPPER glazes - Abstract
Based on the ligand 1,4-bis(2-(diphenylphophino)benzylideneamino)benzene (pbb), two complexes, [Cu[sub 2](pbb)(2,2'-bipyridine)[sub 2]](BF[sub 4])[sub 2] (1) and [Cu[sub 2](pbb)(phen)[sub 2]](BF[sub 4])[sub 2] (2), have been prepared and characterised by IR, [sup 1]H NMR, [sup 31]P NMR, [sup 19]F NMR, and [sup 11]B NMR spectroscopy and X-ray crystal structure analysis. Structural analysis reveals that complexes 1 and 2 contain 1D infinite chains and 2D supramolecular networks constructed by C-H···π and π···π interactions, and an ordered-layer-lattice of BF[sub 4][sup -] is located between these 2D networks. The results show that C-H···π and π···π interactions play an important role in the formation of 2D supramolecular networks. The UV-vis absorption peaks of complexes 1 and 2 display intraligand charge transfer and metal to ligand charge transfer (MLCT) absorption. Complexes 1 and 2 display efficient luminescent emission assigned to MLCT excited states, and the maximum emissions of these complexes in acetonitrile solution are different from those of the solid-state samples. In addition, complexes 1 and 2 have been exploited as sensitisers in dye-sensitised solar cells, and efficiencies are also observed. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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