摘要
利用超微铂电极和循环伏安法及电化学阻抗谱研究了在1,2-二甲基-3-丙基咪唑碘(DMPII)的3-甲氧基丙腈(MePN)溶液中I3-和I-的氧化还原行为,并对比了由不同浓度的I2和DMPII组成的电解质溶液,其染料敏化纳米薄膜太阳电池(DSCs)的光伏性能.发现以MePN为溶剂,含1.0mol·dm-3DMPII、0.12mol·dm-3I2、0.10mo·ldm-3LiI和0.50mo·ldm-34-叔丁基吡啶的电解质溶液,其DSCs的短路光电流密度为16.67mA·cm-2、开路电压为0.69V、填充因子为0.70、光电转换效率达8.08%.
The redox behaviors of I- and I-3(-) in 3-methoxypropionitrile (MePN) with different concentrations of 1,2-dimethyl-3-propylimidazolium iodide(DMPII) and iodine were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. The photovoltaic performance of dye-sensitized solar cells (DSCs) was compared with electrolytes containing different concentrations of DMPII and iodine. The DSCs with the electrolyte (1.0 mol center dot dm(-3) DMPII, 0.10 mol center dot dm(-3) LiI, 0.12 mol center dot dm(-3) I-2, 0.50 mol center dot dm(-3) 4-tert-butylpyridine, in MePN) gave short circuit photocurrent density (J(ac)) of 16.76 mA center dot cm(-2), open circuit voltage (V-oc) of 0.69 V, and fill factor (FF) of 0.70, corresponding to a photoelectric conversion efficiency (eta) of 8.08% under one Sun (AM1.5).
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2005年第5期534-538,共5页
Acta Physico-Chimica Sinica
基金
国家重点基础研究发展规划项目(G2000028200)资助~~
