Solution-Processed Flexible Polymer Solar Cells with Silver Nanowire Electrodes
Solution-Processed Flexible Polymer Solar Cells with Silver Nanowire Electrodes
复制标题
DOI：
10.1021/am2009585
复制
发表时间：
2011-10-01
影响因子：
9.5
通讯作者：
You, Wei
中科院分区：
文献类型：
--
作者：
Yang, Liqiang;Zhang, Tim;You, Wei
用于有机光致发光器件（OPV）的常规阳极氧化铟锡（ITO）昂贵且易碎，因此不适用于OPV的卷对卷制造。在这项研究中，完全溶液处理的聚合物本体异质结（BHJ）太阳能电池与阳极制成的银纳米线（银纳米线）已成功地制造与配置的银纳米线/聚（3，4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）/聚合物：苯基-Cm-丁酸甲酯（PCBM）/Ca/Al。2.8和2.5%a：re获得的装置与银纳米线网络的玻璃和聚（对苯二甲酸乙二醇酯）（PET），分别。器件的效率受限于Ag NW/PEDOT：PSS膜的低功函数以及Ag NW阳极与活性层之间的非理想欧姆接触。与基于ITO阳极的器件相比，基于Ag NW阳极的太阳能电池的开路电压（V-oc）降低了约0.3 V。更重要的是，首次在Ag NW/PET阳极上制造了高度柔性的BHJ太阳能电池，在高达120度的大变形下，其可恢复效率为2.5%。这项研究表明，随着纳米线/聚合物界面工程的改进，Ag NW电极可以作为ITO的低成本，灵活的替代品，从而提高OPV的经济可行性和机械稳定性。
The conventional anode for organic photovoltaics (OPVs), indium tin oxide (ITO), is expensive and brittle, and thus is not suitable for use in roll-to-roll manufacturing of OPVs. In this study, fully solution-processed polymer bulk heterojunction (BHJ) solar cells with anodes made from silver nanowires (Ag NWs) have been successfully fabricated with a configuration of Ag NWs/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/polymer: phenyl-Cm-butyric acid methyl ester (PCBM)/Ca/Al. Efficiencies of 2.8 and 2.5% a:re obtained for devices with Ag NW network on glass and on poly(ethylene terephthalate) (PET), respectively. The efficiency of the devices is limited by the low work function of the Ag NWs/PEDOT:PSS film and the non-ideal ohmic contact between the Ag NW anode and the active layer. Compared with devices based on the ITO anode, the open-circuit voltage (V-oc) of solar cells based on the Ag NW anode is lower by similar to 0.3 V. More importantly, highly flexible BHJ solar cells have been firstly fabricated on Ag NWs/PET anode with recoverable efficiency of 2.5% under large deformation up to 120 degrees. This study indicates that, with improved engineering of the nanowires/polymer interface, Ag NW electrodes can serve as a low-cost, flexible alternative to ITO, and thereby improve the economic viability and mechanical stability of OPVs.