Performance improvement in flexible polymer solar cells based on modified silver nanowire electrode
Performance improvement in flexible polymer solar cells based on modified silver nanowire electrode
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DOI：
10.1088/0957-4484/27/33/335203
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发表时间：
2016-08-19
期刊：
影响因子：
3.5
通讯作者：
Zhang, Hongmei
中科院分区：
文献类型：
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作者：
Wang, Danbei;Zhou, Weixin;Zhang, Hongmei
在这项工作中，通过控制紫外-臭氧处理时间的银纳米线（银纳米线）的电极中使用，并结合其他修饰材料，实现了一个高效的柔性聚合物太阳能电池。通过优化紫外-臭氧处理时间，发现紫外-臭氧处理10 s可使聚3-己基噻吩（P3 HT）：[6，6]-苯基C61-丁酸甲酯（PC61 BM）共混物的光电转换效率（PCE）从0.76%提高到1.34%。紫外臭氧处理后的银纳米线电极具有高的光学透明度、低的方块电阻和优良的上级表面功函数。因此，使用10 s UV-臭氧处理的Ag NW与PEDOT：PSS或MoO 3作为复合阳极的器件的性能显示出比没有UV-臭氧处理的Ag NW电极更高的PCE，为2.77%（2.73%）。此外，在基于聚[4，8-双（5-（2-乙基己基）噻吩-2-基）-苯并[1，2-B：4，5-b 0]二噻吩-2，6-二基-交替-（4-（2-乙基己基）-3-氟噻吩并[3，4-B]噻吩-）-2-羧酸酯-2-6-二基]（PBDTTT-EFT）：[6，6]-苯基C71-丁酸甲酯（PC 71 BM）作为光活性层的柔性聚合物太阳能电池中获得了5.97%的PCE。
In this work, an efficient flexible polymer solar cell was achieved by controlling the UV-ozone treatment time of silver nanowires (Ag NWs) used in the electrode and combined with other modification materials. Through optimizing the time of UV-ozone treatment, it is shown that Ag NWs electrode treated by UV-ozone for 10 s improves the power conversion efficiency (PCE) of the device based on the blend of poly(3-hexylthiophene)(P3HT): [6,6]-phenyl C61-butyric acid methyl ester (PC61BM) from 0.76% to 1.34%. After treatment by UV-ozone, Ag NWs electrodes exhibit several promising characteristics, including high optical transparency, low sheet resistance and superior surface work function. As a consequence, the performance of devices utilizing 10 s UV-ozone-treated Ag NWs with PEDOT: PSS or MoO3 as composite anode showed higher PCEs of 2.77% (2.73%) compared with that for Ag NW electrodes without UV-ozone treatment. In addition, a PCE of 5.97% in flexible polymer solar cells based on poly[4,8-bis( 5-(2-ethylhexyl) thiophen-2-yl)-benzo[1,2-b: 4,5-b0] dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)- 3-fluorothieno[3,4-b] thiophene-)-2-carboxylate-2-6-diyl](PBDTTT-EFT):[6, 6]-phenyl C71-butyric acid methyl ester (PC71BM) as a photoactive layer was obtained.