4-Carboxybiphenyl and thiophene substituted porphyrin derivatives for dye-sensitized solar cell


ÇOĞAL S., ERTEN ELA Ş., OCAKOĞLU K., ÖKSÜZ A.

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, vol.637, no.1, pp.87-95, 2016 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 637 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.1080/15421406.2016.1184383
  • Journal Name: MOLECULAR CRYSTALS AND LIQUID CRYSTALS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.87-95

Abstract

Porphyrin 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, H-1 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 (eta) of 1.33%.