Synthesis and characterization of cross-linkable ruthenium dye with ion coordinating property for dye-sensitized solar cells

POLYMER

卷:52

Article

Liu, Ken-Yen¹  Ko, Chih-Yang²  Ho, Kuo-Chuan²  Lin, King-Fu^1,2 

[1] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 10764, Taiwan

[2] Natl Taiwan Univ, Inst Polymer Sci & Engn, Taipei 10764, Taiwan

关键词: Ruthenium dye;    Dye-sensitized solar cells;    Crosslink;   

DOI  :  10.1016/j.polymer.2011.05.035

来源: Elsevier

【 摘 要 】

Crosslinkable ruthenium complex dye, Ru(2,2'-bipyridine-4,4'-bicarboxylic acid)(4,4'-bis((4-vinyl benzyloxy)methyl)-2,2'-bipyridine)(NCS)(2) (denoted as Ru-S dye), was synthesized and characterized using (1)H-NMR, (13)C-NMR, Fourier transform infrared (FTIR) and UV/vis spectroscopies. The power conversion efficiency of dye-sentitized solar cell (DSSC) using Ru-S and liquid electrolyte containing lithium iodide (LiI) reached 7.53% under standard global AM 1.5 full sunlight, which is partly attributed to Li(+) being coordinated by Ru-S as verified by ATR-FTIR spectroscopy. As Ru-S was further crosslinked with glycerol propoxylate triacrylate (GPTA), not only 89% of dye retained on TiO(2) mesoporous surface after rinsed by 0.1 N NaOH aqueous solution, the power efficiency was also increased to 7.88%. As poly(methyl acrylate) was used to gel the electrolyte system, the power efficiency of DSSC with Ru-S dye was 6.96% but increased to 7.57% after crosslinking with GPTA. Notably, both DSSCs showed a good long-term stability after one month storage. (C) 2011 Elsevier Ltd. All rights reserved.

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