Photovoltaic Properties of Thiophene-Containing Derivatives of 4,5-Diazafluorene and Their Ruthenium(II) Complexes


Sezgin C., ERDEN İ.

Theoretical and Experimental Chemistry, vol.59, no.3, pp.186-192, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 3
  • Publication Date: 2023
  • Doi Number: 10.1007/s11237-023-09777-2
  • Journal Name: Theoretical and Experimental Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core
  • Page Numbers: pp.186-192
  • Keywords: 4,5-diazafluorene, dye-sensitized solar cells, ruthenium complexes, Schiff bases
  • Yıldız Technical University Affiliated: Yes

Abstract

It is shown that the derivatives of 4,5-diazafluorenone-9-hydrazone containing thiophene and aldehyde anchor groups, as well as mixed-ligand Ru(II) complexes with these dyes and bipyridine, have the properties of sensibilizers of TiO2-based photovoltaic cells. The power conversion efficiency (η) in such photovoltaic elements under simulated 100 mW/cm2 solar radiation is in the range of 0.25-0.48%. The value of η in the case of compounds, bearing thiophene-2,5-dicarbaldehyde fragment as an anchor, is almost two times higher compared to the analogues, containing non-substituted thiophene fragment.