Influences of poly(ether urethane) introduction on poly(ethylene oxide) based polymer electrolyte for solvent-free dye-sensitized solar cells
Influences of poly(ether urethane) introduction on poly(ethylene oxide) based polymer electrolyte for solvent-free dye-sensitized solar cells
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DOI：
10.1016/j.electacta.2009.06.064
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发表时间：
2009-11
影响因子：
6.6
通讯作者：
Yanfang Zhou;W. Xiang;Shen Chen;Shi-bi Fang;Xiaowen Zhou;Jingbo Zhang;Yuan Lin
中科院分区：
文献类型：
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作者：
Yanfang Zhou;W. Xiang;Shen Chen;Shi-bi Fang;Xiaowen Zhou;Jingbo Zhang;Yuan Lin
制备了聚醚氨酯(PEUR)/聚环氧乙烷(PEO)/二氧化硅纳米复合聚合物，并将其用于构建高效全固态染料敏化纳米晶太阳能电池。在PEO电解液中引入低相对分子质量的PEUR预聚体，既改善了电极/电解液的界面接触性能，又减少了PEO的结晶，大大提高了电解液的性能，X射线衍射和扫描电子显微镜的表征也证实了这一点。研究了聚合物组成、纳米二氧化硅含量对聚合物共混电解液的离子电导率和I3−离子扩散的影响。在白光(100 mW·cm·−~2)照射下，得到了3.71%的能量转换效率。
A poly(ether urethane) (PEUR)/poly(ethylene oxide) (PEO)/SiO2based nanocomposite polymer is prepared and employed in the construction of high efficiency all-solid-state dye-sensitized nanocrystalline solar cells. The introduction of low-molecular weight PEUR prepolymer into PEO electrolyte has greatly enhance the electrolyte performance by both improving the interfacial contact properties of electrode/electrolyte and decreasing the PEO crystallization, which were confirmed by XRD and SEM characteristics. The effects of polymer composition, nano SiO2content on the ionic conductivity and I3−ions diffusion of polymer-blend electrolyte are investigated. The optimized composition yields an energy conversion efficiency of 3.71% under irradiation by white light (100mWcm−2).