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A series of novel non-aggregated hyperbranched phthalocyanine dyes with different metal centers (H2, AlCl, Co, Cu, Zn; 1–5) were prepared and utilized as sensitizers of TiO2 in dye-sensitized solar cells (DSSCs). The zinc substituted hyperbranched phthalocyanine dye 5 exhibited the highest photovoltaic performance, with a power conversion efficiency of at least ∼3 times higher than that of any other...
One asymmetric porphyrin 2-(1-acetyl-2-oxopropyl)-5,10,15,20-tetraphenylporphyrin and its Cu2+, Zn2+ complexes for dye-sensitized solar cell (DSSCs) are synthesized and characterized by single-crystal X-ray diffraction analysis. Dye-sensitized solar cells are fabricated with these porphyrins as dyes and the results show low energy conversion efficiency, which can be attributed to the steric hinderance...
Several 5-(4-carboxyphenyl)-10,15,20-tris(phenyl) porphyrin derivatives with different substituents (NO2, CN, CH3, OCH3, CN, NO2, Cl, N(CH3)2, N(Ph)2) in the para-positions of phenyl groups are designed and synthesized for systematic study of structural effect on their photovoltaic performance in dye-sensitized solar cells (DSSCs). Density Functional Theory (DFT) level calculation indicates the decrease...
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