高等学校化学学报Issue(6)：1293-1299,7.DOI:10.7503/cjcu20131250
聚乙烯吡咯烷酮基碘凝胶电解质的制备及在染料敏化太阳能电池中的应用
Preparation of PVP-based Iodine-iodide Gel-electrolyte and Its Application in DSSCs
摘要
Abstract
In the preparation of gel polymer electrolyte(GPE) for dye-sensitized solar cell(DSSCs), lithium iodide was used as the I- source, ethylene carbonate(EC) and propylene carbonate(PC) were used as the sol-vent, polyvinyl pyrrolidone(PVP) and polyvinylidene fluoride(PVDF) were used as the gelling agent. Raman spectroscopy, cyclic voltammetry and alternate current(AC) impedance were used to characterize the gel elec-trolyte. The results show that the concentration(mass fraction) of polymer and the ratios of PVP to PVDF and iodine to iodide have great influence on the performance of the GPE. The prepared GPE comes to the highest ion conductivity of 3. 27 mS / cm at room temperature when the concentration of polymer is 10% [m(PVP) /m(PVDF)= 80 : 20] and the molar ratio of LiI/ I2 is 30 : 1 with the concentration of iodide as 0. 042 mol/ L. DSSC with the PVP-based GPE achieves a good output performance with open circuit voltage of 0. 64 V, short circuit current density of 13. 6 mA/ cm2 , fill factor of 0. 595, the overall photoelectric conversion efficiency of 5. 18% under 100 mW/ cm2 of simulated sunlight and exhibits a good stability during the test time of 30 d. The new GPE which is cheap and available overcomes the problem of liquid electrolytes leakage in DSSCs.关键词
聚乙烯吡咯烷酮/凝胶聚合物电解质/离子电导率/染料敏化太阳能电池Key words
Poly(vinylpyrrolidone)/Polymer gel-electrolyte/Ionic conductivity/Dye-sensitized solar cell分类
化学化工引用本文复制引用
卢善富,刘祎阳,相艳..聚乙烯吡咯烷酮基碘凝胶电解质的制备及在染料敏化太阳能电池中的应用[J].高等学校化学学报,2014,(6):1293-1299,7.基金项目
“北京市青年英才计划”项目(批准号:29201493)资助. Supported by the Beijing Higher Education Young Elite Teacher Project, China(No.29201493) （批准号:29201493）
