Bifacial dye-sensitized solar cells from covalent-bonded polyaniline–multiwalled carbon nanotube complex counter electrodes
Bifacial dye-sensitized solar cells from covalent-bonded polyaniline–multiwalled carbon nanotube complex counter electrodes
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DOI：
10.1016/j.jpowsour.2014.11.046
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发表时间：
2015-02
影响因子：
9.2
通讯作者：
Huihui Zhang;B. He;Q. Tang;Liangmin Yu
中科院分区：
文献类型：
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作者：
Huihui Zhang;B. He;Q. Tang;Liangmin Yu
探索具有成本效益的对电极（CE）和提高功率转换效率一直是染料敏化太阳能电池（DSSC）的两个持续目标。本论文采用回流法合成了聚苯胺-多壁碳纳米管复合物，并将其用作双面DSSC的CE材料。由于PANi-MWCNT复合物CE的高光学透明性，从背面入射的光可以补偿从TiO 2阳极入射的光。电荷转移能力和电化学行为表明PANi-MWCNT复合物CE在稳健的双面DSSC中的潜在用途。通过调节MWCNT的用量，优化了其电化学性能和光伏性能。采用PANi-8 wt‰ MWCNT复合CE的双面DSSC在两种辐照下的最大功率转换效率为9.24%，优于纯PANi CE的8.08%。
Exploration of cost-effective counter electrodes (CEs) and enhancement of power conversion efficiency have been two persistent objectives for dye-sensitized solar cells (DSSCs). In the current work, polyaniline–multiwalled carbon nanotube (PANi–MWCNT) complexes are synthesized by a reflux method and employed as CE materials for bifacial DSSCs. Owing to the high optical transparency of PANi–MWCNT complex CE, the incident light from rear side can compensate for the incident light from TiO2anode. The charge-transfer ability and electrochemical behaviors demonstrate the potential utilization of PANi–MWCNT complex CEs in robust bifacial DSSCs. The electrochemical properties as well as photovoltaic performances are optimized by adjusting MWCNT dosages. A maximum power conversion efficiency of 9.24% is recorded from the bifacial DSSC employing PANi–8 wt‰ MWCNT complex CE for both irradiation, which is better than 8.08% from pure PANi CE.