A novel polymer gel electrolyte based on cyanoethylated cellulose for dye-sensitized solar cells

作者：Huang, Xianwei^*; Liu, Yijiang; Deng, Jiyong; Yi, Bing; Yu, Xinliang; Shen, Ping; Tan, Songting

来源：Electrochimica Acta, 2012, 80: 219-226.

DOI：10.1016/j.electacta.2012.07.014

• Dye-sensitized solar cell
• Gel electrolyte
• Cyanoethylated cellulose
• Ionic conductivity
• Conversion efficiency

A polymer gel electrolyte with the cyanoethylated hydroxypropyl cellulose (CN-HPC) as polymer matrix was prepared and applied in dye-sensitized solar cells (DSSCs). The ionic conductivities of the gel electrolytes based on LiI/I-2 and 1-methyl-3-hexylimidazolium iodide (MHII)/I-2 as the I-/I-3(-) redox couple were determined. being 2.94 mS cm(-1) and 2.46 mS cm(-1) with the respective diffusion constants of I-3(-) (D-app) of 2.54 x 10(-6) cm(2) S-1, 2.15 x 10(-6) cm(2) S-1. Under the optimized condition, the overall conversion efficiencies of quasi-solid DSSCs were determined to be 7.40% based on a triphenylamine dye (SD2) and 7.55% based on a ruthenium dye (N719), which is 94% of those with liquid electrolyte.

• 出版日期2012-10-1
• 单位湖南工程学院; 湘潭大学