Synthesis and Characterization of Phenothiazine-Based Platinum(II)-Acetylide Photosensitizers for Efficient Dye-Sensitized Solar Cells

Chi Ho Siu, Lawrence Tien Lin Lee, Sze Chun Yiu, Po Yu Ho, Panwang Zhou, Cheuk Lam Ho*, Tao Chen, Jianyong Liu, Keli Han, Wai Yeung Wong

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

28 Citations (Scopus)

Abstract

Three new unsymmetrical phenothiazine-based platinum(II) bis(acetylide) complexes PT1-PT3 with different electron-donating arylacetylide ligands were synthesized and characterized. Their photophysical, electrochemical, and photovoltaic properties have been fully investigated and the density functional theory (DFT) calculations have been carried out. Under AM 1.5 irradiation (100 mW cm-2), the PT1-based dye-sensitized solar cell (DSSC) device exhibited an attractive power conversion efficiency (η) up to 5.78 %, with a short-circuit photocurrent density (Jsc) of 10.98 mA cm-2, an open-circuit photovoltage (Voc) of 0.738 V, and a fill factor (ff) of 0.713. These findings provide strong evidence that platinum-acetylide complexes have great potential as promising photosensitizers in DSSC applications.

Original languageEnglish
Pages (from-to)3750-3757
Number of pages8
JournalChemistry - A European Journal
Volume22
Issue number11
DOIs
Publication statusPublished - 7 Mar 2016

Scopus Subject Areas

  • Catalysis
  • Organic Chemistry

User-Defined Keywords

  • acetylide
  • dye-sensitized solar cells
  • phenothiazine
  • photosensitizers
  • platinum

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