The use of ternary additives in organic photovoltaics is a promising route for improving overall device performance. Silicon phthalocyanines (SiPcs) are ideal candidates due to their absorption profile, low cost, and ease of synthesis and chemical tunability. However, to date, only a few examples have been reported and specific strategies for aiding in the design of improved ternary additives have
在有机光伏中使用三元添加剂是改善整体器件性能的有前途的途径。
硅酞菁(SiPcs)由于其吸收曲线,低成本,易于合成和
化学可调性而成为理想的候选材料。然而,迄今为止,仅报道了几个例子,并且尚未建立用于设计改进的三元添加剂的具体策略。在这项研究中,我们报告了三元添加剂的溶解度与器件性能之间的关系,表明当SiPc添加剂的溶解度与供体聚合物(在这种情况下为P3HT)相似时,器件的性能将最大化。当SiPc的溶解度与薄膜中其他组分的溶解度匹配时,这种改善的性能可归因于SiPc的有利界面沉淀。