Synthesis, characterization, photophysical and photovoltaic properties of new donor-acceptor platinum(II) acetylide complexes

Qian Liu, Nianyong ZHU, Cheuk Lam HO*, Yingying Fu, Wai Sum Lau, Zhiyuan Xie, Lixiang Wang, Wai Yeung WONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Six new solution processable platinum(II) acetylide donor-acceptor (D-A) triads end-capped by 4,7-di-2-thienyl-2,1,3-benzothiadiazole (DTBT) have been synthesized and characterized by photophysical and electrochemical methods. All these materials possess low bandgaps and strong UV/Vis absorption between 400 and 700 nm. Bulk heterojunction (BHJ) solar cells based on these molecules as donor materials were fabricated. The best power conversion efficiency (PCE) of 1.46% with the open-circuit voltage (Voc) of 0.70 V, short-circuit current density (Jsc) of 6.17 mA cm-2 and fill factor (FF) of 0.33 was achieved under illumination of an AM 1.5 solar cell simulator. These results suggest the potential use of solution-processable small molecular platinum(II)-acetylides for efficient generation in organic photovoltaic implementation.

Original languageEnglish
Pages (from-to)2-12
Number of pages11
JournalJournal of Organometallic Chemistry
Volume812
DOIs
Publication statusPublished - 15 Jun 2016

Scopus Subject Areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • Acetylide
  • Bulk heterojunction solar cell
  • Crystal structure
  • Photovoltaics
  • Platinum

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