A polyelectrolytic polyacetylene for quasi-solid state dye-sensitized solar cell applications. (2nd July 2020)

• Record Type: Journal Article
• Authors: Choi, Hyun-Kuk; Shin, Dong Jin; Jin, Sung-Ho; Lim, Kwon Taek; Jeong, Seung-Hwan; Gal, Yeong-Soon
• Is Part Of: Molecular crystals and liquid crystals. Volume 705(2020)
• Page Start: 87
• Page End: 92
• Publication Date: 2020-07-02
• Subjects: conjugated polymer -- electrolytes -- 2-ethynylpyridine -- photoluminescence -- quasi-solid-state DSSC; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2020.1741828
• Languages: English
• ISSNs: 1542-1406

Abstract

Abstract: A new polyelectrolytic polyacetylene, poly(2-ethynyl-N-iodopyridinium triiodide), was applied for DSSCs. Poly(2-ethynyl-N-iodopyridinium triiodide) was prepared by the non-catalyst polymerization of 2-ethynylpyridine using iodine without any additional initiator or catalyst in high yields. The photoluminescence peak was observed at 534 nm corresponding to a photon energy of 2.32 eV. Quasi-solid-state DSSCs with a SnO2 :F/TiO2 /D719 dye/solid-state electrolyte/Pt device was fabricated with the poly(2-ethynyl-N-iodopyridinium triiodide) electrolyte, which shows the power conversion efficiency (PCE) of 5.79%.