New oxindole-bridged acceptors for organic sensitizers: Substitution and performance studies in dye-sensitized solar cells

Yogesh S. Tingare*, Chaochin Su, Ming Tai Shen, Sheng Han Tsai, Shih Yu Ho, Wen Ren Li

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

9 Scopus citations

Abstract

New D-π-A configured organic sensitizers featuring halogen-substituted oxindole-bridged acceptor units have been synthesized for dye-sensitized solar cells applications. Among fluorine, bromine, and iodine substitution, the cell based on bromine incorporated dye exhibited the highest efficiency. The oxindoles in these sensitizers were found to assist the electron injection through the chelation of their amide carbonyl groups to the TiO2 surface. This study provides an alternate approach for future rational dye design to gain excellent DSSC performance.

Original languageEnglish
Article number2159
JournalMolecules
Volume25
Issue number9
DOIs
StatePublished - 05 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 by the authors.

Keywords

  • Dye-sensitized solar cells
  • Electron injection
  • Halogens
  • Oxindoles

Fingerprint

Dive into the research topics of 'New oxindole-bridged acceptors for organic sensitizers: Substitution and performance studies in dye-sensitized solar cells'. Together they form a unique fingerprint.

Cite this