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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)


KGaA, Weinheim. 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
Issue number11
Publication statusPublished - 7 Mar 2016
Externally publishedYes


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

ASJC Scopus subject areas

  • Chemistry(all)

Cite this