Abstract
ABSTRACTPorphyrin sensitizer (Por) containing 4-carboxybiphenyl and 2-thienyl and its metallated Zn(II) derivative (ZnPor) were synthesized and investigated. The porphyrin dyes were characterized by MALDI-MS, 1H NMR, UV–vis, fluorescence and cyclic voltammetry methods. It was found that using of biphenyl bridge between anchoring group and porphyrin core enhanced the conjugation length of the porphyrin macrocycle. The new porphyrin dyes were used as sensitizers in dye-sensitized solar cells (DSSCs). ZnPor-based dye sensitized solar cells yielded a short circuit photocurrent density of 3.98 mA cm−2, an open circuit voltage of 500 mV, and a fill factor of 0.67, corresponding to an overall conversion efficiency (η) of 1.33%.
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