Controlling aggregation using self-assembled axially coordinated pyridine-based ligands on porphyrin analogues for dye-sensitized solar cells

Bakhytzhan Baptayev, Sang Hee Lee, Dong Hee Kim, Mannix Balanay

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Porphyrin dyes are susceptible to aggregation which may cause lower short-circuit current density affecting its photoelectric conversion efficiency (PCE) in dye-sensitized solar cells. In this paper, we harness the inherent property of metallated porphyrins that it can axially coordinate with compounds containing lone-pair of electrons, such as pyridines, through the back π-bonding. The use of pyridine or bipyridine spacers to suppress aggregation in β-functionalized Zn-tetraphenylporphyrin-based dyes showed improvement of PCEs by 28% and 44% for 4-methylpyridine and 4,4′-bipyridine ligands, respectively. This clearly demonstrates the benefits of the simple but effective method in suppressing dye aggregation thereby increasing its efficiency.

Original languageEnglish
Pages (from-to)407-410
Number of pages4
JournalChemical Physics Letters
Volume730
DOIs
Publication statusPublished - Sep 1 2019

Keywords

  • Density functional theory
  • Dye-sensitized solar cell
  • Zinc-tetraphenylporphyrin

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Controlling aggregation using self-assembled axially coordinated pyridine-based ligands on porphyrin analogues for dye-sensitized solar cells'. Together they form a unique fingerprint.

  • Cite this