Synthesis, characterization and photovoltaic effect of porphyrin-fullerene compounds MP-C-60

The convalendy linked porphyrin-fullerene ligand was synthesized by 1, 3 dipolar cycloaddition reaction. The ligand and complexes were characterized by means of FT-IR, Uv-Vis, (HNMR)-H-1, ESI-MS and elemental analysis. The photoelectricity transform performance of the compounds was studied. The result indicated that the photovoltaic effect of (n + n) heterojunction electrode formed by MP-C-60/GaAs was super, especially in the I-2/I-3(-) and O-2/H2O redox couples, and photovoltaic potential was preferable. The photovoltaic performance of a MP-C-60/GaAs electrode at 1-2 mu m thinck MP-C-60 film of appeared peak value

Synthesis and photoelectric property of complexe C60Pd(Ph2PCH2CH2PPh2)

In the present work, the fullerene complexe C60Pd(Ph2PCH2CH2PPh2) was perpared by the method of ligand substitution via the reaction Of C-60 with Pd(Ph2PCH2CH2PPh2)2 in nitrogen atmosphere under refluxing, and the title compound was characterized by the methods of elemental analysis, FT-IR, UV-vis, XPS,XRD. The result shows that the structure of purposeful product is that the Ph2PCH2CH2PPh2 took up two coordination sites of the central metal, and C-60 took up another two sites in alpha - pi feedback pattern. Meanwhile the properties on redox and the thermostability were studied, the redox research indicates that the reduction potential of the complexe is more negative than that of the pure C60. And the research on the photovoltaic effect for C-60 Pd(Ph2PCH2CH2PPh2) complex which forming n+n heterojunction with GaAs electrode in photoelectrochemical cell shows that the photoelectric property Of C60Pd(Ph2PCH2CH2PPh2) is excellent, especially in the Fe(CN)(6)(3-)/Fe(CN)(6)(4-) redox couple mediator. The photovoltaic property of C60Pd(Ph2PCH2CH2PPh2) electrode at 1 mu m for thickness Of C60Pd(Ph2PCH2CH2PPh2) is the best,the photopotential value is up to 367 mV