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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Organic Photovoltaic Devices Based on Water-Soluble Copper Phthalocyanine
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Organic Photovoltaic Devices Based on Water-Soluble Copper Phthalocyanine

机译：基于水溶性铜酞菁的有机光伏器件

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摘要

Organic photovoltaic (OPV) planar heterojunction devices based on an aqueous solution processed 3,4',4",4"'-copper(II) phthalo-cyanine-tetrasulfonic acid tetrasodium salt (TSCuPc) donor layer and a , fullerene (C_(60)) acceptor have been fabricated demonstrating power conversion efficiencies of up to 0.32% and an open circuit voltage (V_(OC)) of almost 0.6 V. The V_(OC) is significantly larger than that produced by similar cells based on the commonly studied copper phthalocyanine (CuPc)/C_(60) heterojunction (V_(OC) = 0.46 V). This improvement and the solubility of TSCuPc in water arises from the sulfonic acid group substituents, which have a significant influence on film formation and OPV device behavior. In contrast to other solution-processed molecular semiconductors, TSCuPc forms nanocrystals in solution resulting in dense crystal thin film networks on the substrate surface. This unusual thin film morphology was studied in detail using ultraviolet—visible absorption spectroscopy, X-ray diffraction, and atomic force microscopy. Combined with current density—voltage analysis under 1 sun solar illumination, a deeper understanding of the molecular arrangement of TSCuPc thin films is presented as well as its impact on the resulting device behavior.
机译：基于水溶液的有机光伏（OPV）平面异质结器件，基于水溶液处理的3,4'，4''，4'''-铜（II）酞菁-四磺酸四钠盐（TSCuPc）供体层和富勒烯（C_（ 60））受体已经制造出来，其功率转换效率高达0.32％，开路电压（V_（OC））几乎为0.6V。V_（OC）明显大于同类电池基于共同点产生的电压。研究了铜酞菁（CuPc）/ C_（60）异质结（V_（OC）= 0.46 V）。这种改进和TSCuPc在水中的溶解性是由磺酸基取代基引起的，这些取代基对成膜和OPV器件的性能有重大影响。与其他溶液处理的分子半导体相反，TSCuPc在溶液中形成纳米晶体，从而在基板表面形成致密的晶体薄膜网络。使用紫外可见吸收光谱，X射线衍射和原子力显微镜对这种异常的薄膜形态进行了详细研究。结合电流密度—在1个太阳光照射下的电压分析，可以更深入地了解TSCuPc薄膜的分子排列及其对所得器件性能的影响。

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