Regioirregular Ambipolar Naphthalenediimide-Based Alternating Polymers: Synthesis, Characterization, and Application in Field-Effect Transistors
Regioirregular Ambipolar Naphthalenediimide-Based Alternating Polymers: Synthesis, Characterization, and Application in Field-Effect Transistors
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区域不规则双极性萘二亚胺交替聚合物：合成、表征及其在场效应晶体管中的应用
DOI：
10.1002/pola.28747
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发表时间：
2017
影响因子：
--
通讯作者：
Yu Gui
中科院分区：
文献类型：
--
作者：
Lin Zuzhang;Liu Xiaotong;Zhang Weifeng;Wei Congyuan;Huang Jianyao;Chen Zhihui;Wang Liping;Yu Gui
在本工作中，我们报道了两种基于区域不规则萘二亚胺(NDI)的交替共轭聚合物P1和P2的合成、表征和应用。其中，氰基取代部分、2，3-二(硫代-2-基)丙烯腈和NDI部分分别作为给体和受体单元。这两种区域不规则聚合物具有低的LUMO能级，P1的−为3.92 eV，P2的−为3.96 eV。这两种聚合物都具有NDI型聚合物典型的双波段UV-−-Vis-−近红外吸收谱，并且与溶液相比，固态吸收光谱展宽和红移。采用上栅底接触结构的场效应晶体管器件对聚合物的半导体性能进行了评价。这两种聚合物具有良好的空气稳定的双极电荷传输特性。薄膜微结构研究(AFM和2D-GIXRD)表明，两种聚合物都形成了连续光滑的薄膜，并且在固相中主要采用了面对面的分子堆积。©2017威利期刊公司J.Polym。科学，A部分：多晶硅。化学.2017，55,3627-3635
In this work, we report the synthesis, characterization, and application of two regioirregular naphthalenediimide (NDI)‐based alternating conjugated polymers, namelyP1andP2, in which nitrile‐substituted moiety, 2,3‐bis(thiophen‐2‐yl)acrylonitrile and NDI moiety act as donor and acceptor unit, respectively. The two regioirregular polymers possess low‐lying LUMO energy levels of −3.92 eV forP1and −3.96 eV forP2. Both polymers possess typical dual‐band UV−Vis−NIR absorption profiles of NDI‐based polymers, and show broadened and red‐shifted absorption spectra in the solid state compared with those in solutions. Field‐effect transistor devices with top‐gate bottom‐contact configuration were used to evaluate the polymers' semiconducting properties. The two polymers exhibited promising and air‐stable ambipolar charge transport characteristics. Thin film microstructure investigations (AFM and 2D‐GIXRD) suggest both polymers formed continuous and smooth thin films, and adopted predominantly face‐on molecular packing in the solid state. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2017,55, 3627–3635