High performance quasi-solid-state dye-sensitized solar cells based on acetamide-modified polymer electrolytes

High performance quasi-solid-state dye-sensitized solar cells based on acetamide-modified polymer electrolytes
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基于乙酰胺改性聚合物电解质的高性能准固态染料敏化太阳能电池

DOI:
10.1016/j.orgel.2012.07.038
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发表时间:
2012-11
影响因子:
3.2
通讯作者:
Zhu Y.
Zhu Y.
中科院分区:
工程技术3区
文献类型:
--
作者:
Zhang X.;Feng J.;Hong Y.;Zhu Y.

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用乙酰胺修饰的PEO/P(VDF-HFP)复合聚合物电解质(CPE)与KI和I2制备了准固态染料敏化太阳能电池(DSC)。与未改性CPE组装的DSSC相比,经乙酰胺修饰的CPE组装的DSSC具有更高的开路电压和短路光电流密度。适量的乙酰胺含量(0.20g)改性后,光电压提高14.3 mV,电流密度提高2.83mAcm−~2,性能由原来的4.68%提高到6.04%。用二氧化钛平带电势的移动和电解液中乙酰胺的I_3-和-NH_2络合物的形成解释了词汇和J_(Scr)的变化。
Quasi-solid-state dye-sensitized solar cells (DSSCs) are fabricated using acetamide-modified PEO/P(VDF-HFP) composite polymer electrolytes (CPEs) along with KI and I2. The DSSC assembled with acetamide-modified CPE shows higher open-circuit voltage and higher short-circuit photocurrent density than those of DSSC with unmodified CPE. With moderate acetamide content (0.20g) modification, the DSSC exhibits a 14.3mV improvement of photovoltage, a 2.83mAcm−2improvement of current density and a improved performance of 6.04% compared with 4.68% of the original DSSC. Variations in the Vocand Jscare explained in terms of shift of the flat band potential of TiO2and a complex formation between I3-and –NH2of acetamide in the electrolyte.
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