Advances in Efficient Polymerization of Solid-State Trithiophenes for Organic Thermoelectric Thin-Film,ACS Applied Polymer Materials

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Advances in Efficient Polymerization of Solid-State Trithiophenes for Organic Thermoelectric Thin-Film
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2020-01-16 , DOI: 10.1021/acsapm.9b00842
Lanlan Shen ₁ , Peipei Liu _{1,

2} , Congcong Liu ₁ , Qinglin Jiang ₂ , Jingkun Xu ₁ , Xuemin Duan ₁ , Yukou Du ₃ , Fengxing Jiang ₁

Affiliation

The polymerization of solid-state small organic molecules generally involving no less three units has been demonstrated to be an important prospect in the field of organic electrons. Presently, owing to the chemical coupling reactions, the polymerization for solid-state small molecules usually involves the complex operations and results in powder polymers and a poor-quality thin-film by spin coating due to their insoluble property in common solvents. The conventional vapor-phase polymerization (VPP) is a powerful technology and has been widely accepted for a high-quality polymer film. However, the VPP is generally used for a limited small organic molecules, but does not apply to a solid-state organic molecules due to the difficulty of vaporization. Herein, we proposed an upgrade vapor phase polymerization strategy, spin-spray coating polymerization method, to overcome the limitation of traditional VPP by spraying of solid-state trithiophenes as precursors in a common low-boiling point organic solvent for a homogeneous conjugated polymer thin-film. The as-fabricated conjugated polymer films show the uniform morphology with the fast and easy polymerization and acceptable thermoelectric performance compared to the traditional chemical and electrochemical oxidation in solution. This spin-spray coating polymerization technique has also been extended to the derivatives of trithiophenes with different alkyl side chains in thiophene, demonstrating the effective strategy for the development of an uniform polymer thin-film with relatively complex structure.

中文翻译：

固态三噻吩高效聚合用于有机热电薄膜的研究进展

已经证明，通常包含不少于三个单元的固态小有机分子的聚合是有机电子领域中的重要前景。目前，由于化学偶联反应，固态小分子的聚合通常涉及复杂的操作，并且由于其在普通溶剂中的不溶性，导致粉末聚合物和通过旋涂的劣质薄膜。常规的气相聚合（VPP）是一项强大的技术，已被高质量的聚合物膜广泛接受。然而，VPP通常用于有限的小的有机分子，但是由于汽化的困难而不适用于固态有机分子。在这里，我们提出了升级气相聚合策略，旋转喷涂聚合方法，克服了传统VPP的局限性，方法是在常见的低沸点有机溶剂中将固态三噻吩作为前体进行喷涂，以制备均质的共轭聚合物薄膜。与溶液中的传统化学和电化学氧化相比，所制备的共轭聚合物薄膜显示出均匀的形貌，快速，容易的聚合以及可接受的热电性能。这种自旋喷涂聚合技术也已扩展到噻吩中具有不同烷基侧链的三噻吩的衍生物，证明了开发具有相对复杂结构的均匀聚合物薄膜的有效策略。通过在固态低沸点有机溶剂中喷涂固态三噻吩作为前体，以克服传统VPP的局限性，从而制得均匀的共轭聚合物薄膜。与溶液中的传统化学和电化学氧化相比，所制备的共轭聚合物薄膜显示出均匀的形貌，快速，容易的聚合以及可接受的热电性能。这种自旋喷涂聚合技术也已扩展到噻吩中具有不同烷基侧链的三噻吩的衍生物，证明了开发具有相对复杂结构的均匀聚合物薄膜的有效策略。为了克服传统VPP的局限性，将固态三噻吩作为前体在普通的低沸点有机溶剂中进行喷涂，以制备均质的共轭聚合物薄膜。与溶液中的传统化学和电化学氧化相比，所制备的共轭聚合物薄膜显示出均匀的形貌，快速，容易的聚合以及可接受的热电性能。这种自旋喷涂聚合技术也已扩展到噻吩中具有不同烷基侧链的三噻吩的衍生物，证明了开发具有相对复杂结构的均匀聚合物薄膜的有效策略。与溶液中的传统化学和电化学氧化相比，所制备的共轭聚合物薄膜显示出均匀的形貌，快速，容易的聚合以及可接受的热电性能。这种自旋喷涂聚合技术也已扩展到噻吩中具有不同烷基侧链的三噻吩的衍生物，证明了开发具有相对复杂结构的均匀聚合物薄膜的有效策略。与溶液中的传统化学和电化学氧化相比，所制备的共轭聚合物薄膜显示出均匀的形貌，快速，容易的聚合以及可接受的热电性能。这种自旋喷涂聚合技术也已扩展到噻吩中具有不同烷基侧链的三噻吩的衍生物，证明了开发具有相对复杂结构的均匀聚合物薄膜的有效策略。

更新日期：2020-01-17

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