摘要

One-dimensional (1D) halide-bridged Cu(I)-Ni(II) heterometal coordination polymers containing a hexamethylene dithiocarbamate (Hm-dtc) ligand have been synthesized and crystallographically characterized. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of the coordination polymers were estimated using UV-Vis-NIR and photoelectron spectroscopies, and it was revealed that these coordination polymers have appropriate HOMO levels for use as dye sensitizers. Direct-current electrical conductivity measurements and impedance measurements indicated that these 1D Cu(I)-Ni(II) heterometal coordination polymers were insulators (sigma(300K) < 10(-12) S cm(-1)). In addition, the coordination polymers were used as sensitizing materials in dye-sensitized solar cells (DSSCs). DSSCs with 1D Cu(I)-Ni(II) heterometal coordination polymers showed lower performances than those with 1D halide-bridged Cu(I)-Cu(II) mixed-valence coordination polymers.

  • 出版日期2012-9