Influence of Polymer Concentration on Polysaccharide Electrolyte for Quasi-solid-state Dye-sensitized Solar Cell
A series of polymer electrolytes was synthesized to fabricate dye-sensitized solar cells by a novel polysaccharide agarose as polymer matrix, 1-methyl-2-pyrrolidinone (NMP) as plasticizers, lithium iodide (LiI)/iodine (I2) as redox couple and titania nanoparticles as an absorber. The agarose polymer electrolytes with different agarose concentrations (1-5 wt ％) were systematically studied by differential scanning calorimetry (DSC) and the AC impedance spectra. The photoelectric performances of the DSSCs with different agarose content were investigated. Increasing polymer concentration led to a decrease in Tg of electrolyte in the low content range (1-2 wt ％), which results in relative high conductivity in these content ranges. The 1.5 wt ％ agarose contained electrolyte showed the maximum conductivity of 3.94 ×10-4 S cm-1. After optimization, the energy conversion efficiency of 4.14 ％ was obtained in the cell with 2 wt ％ agarose.
polymer electrolyte agarose quasi-solid state dye sensitized solar cell
Ying Yang Xue-Yi Guo Xing-Zhong Zhao
School of Metallurgical Science & Engineering, Central South University,Changsha 410083, China Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Edu
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
76-81
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）