N-type polymer semiconductors incorporating para, meta, and ortho-carborane in the conjugated backbone
N-type polymer semiconductors incorporating para, meta, and ortho-carborane in the conjugated backbone
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DOI：
10.1016/j.polymer.2021.124481
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发表时间：
2022-01-06
期刊：
影响因子：
4.6
通讯作者：
Heeney, Martin
中科院分区：
文献类型：
--
作者：
Anies, Filip;Qiao, Zhuoran;Heeney, Martin
我们报告了三种在聚合物骨架中引入碳硼烷的新型n型共轭聚合物半导体，并证明了它们在光电子器件中的适用性。比较的光电性能的帕拉，Meta位，和邻位碳硼烷异构体之间的不同的聚合物显示类似的能量特性，与碳硼烷单元作为一个“共轭断路器”，限制电子离域的共轭部分。全聚合物有机光伏（OPV）器件和薄膜晶体管（TFT）的制造揭示了聚合物之间的器件性能的一些差异，其中基于间碳硼烷的聚合物在OPV和TFT器件中均表现出上级性能。
We report on three novel n-type conjugated polymer semiconductors incorporating carborane in the polymer backbone and demonstrate their applicability in optoelectronic devices. Comparing the optoelectronic properties of para-, meta-, and ortho-carborane isomers revealed similar energetic characteristics between the different polymers, with the carborane unit acting as a "conjugation breaker", confining electron delocalisation to the conjugated moieties. The fabrication of all-polymer organic photovoltaic (OPV) devices and thin-film transistors (TFTs) revealed some differences in device performance between the polymers, with the meta-carborane based polymer exhibiting superior performance in both OPV and TFT devices.