化学
有机太阳能电池
富勒烯
表征(材料科学)
吸收(声学)
接受者
光化学
酰亚胺
异质结
光伏系统
吸收光谱法
聚合物太阳能电池
太阳能电池
光电子学
纳米技术
高分子化学
有机化学
材料科学
聚合物
光学
复合材料
生态学
物理
生物
凝聚态物理
作者
Jorge Labella,José García‐Calvo,Magaly Ramírez-Como,Josep Pallarès,Lluı́s F. Marsal,Tomás Torres⊗
标识
DOI:10.1142/s1088424623501110
摘要
Imide-based Subphthalocyanines (SubPcs) is gaining momentum as non-fullerene acceptors in organic solar cells (OSCs). Herein we report the synthesis, characterization, and photovoltaic performance of Perylenemonoimide (PMI)-SubPc conjugates in which the PMI is linked to the SubPc core by either alkynes or direct C-C bond. These derivatives are prepared via palladium-catalyzed cross-coupling reactions. The introduction of PMI units results in a red-shifted absorption, which can be described as the combination of the absorption properties of both SubPc and PMIs fragments. The absorption spectra are thus mainly composed of two transitions, one derived from the SubPc Q-band and the other from transitions within the PMI moieties. These PMI-SubPc systems exhibit moderate acceptor properties and therefore their use as non-fullerene acceptors in bulk-heterojunction organic solar cells is briefly explored.
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