Abstract This work reports the preparation of two novel materials: a non-covalently bonded hybrid based on amino-carbazole-functionalized multi-walled carbon nanotube (MWCNTCO-NHCbz) and poly(3-dodecylthiophene) (P3DDT) and a covalently bonded nanohybrid based on MWCNT functionalized with 3,6-diamino-methylcarbazole (H2NCbzNH2), 3-carboxythiophene (ThCOOH) and a final grafting of poly(3-hexylthiophene) (P3HT). These materials were characterized by several spectroscopic techniques that proved their successfully preparation. Beyond the thermal, electrochemical, electrical and morphological characterizations, thin films of both materials were also tested by spectroelectrochemical experiments. The covalently bonded material presented a better electrochromic performance when compared with the other material: optical contrast three times higher (6%); coloration efficiency of 10.8 C−1 cm2; fast response times on the scale of few seconds; and greater long-term cyclability presenting a stable color changing memory and 73% of the original charge after 100 cycles. This enhanced performance might be related to the benefits provided by the covalent connections between the building blocks, such an important strategy of tailoring hybrid materials for multifunctional applications.

中文翻译：

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基于咔唑-噻吩功能化多壁碳纳米管和接枝聚（3-己基噻吩）的纳米杂化材料：制备、表征和光谱电化学

摘要 这项工作报告了两种新型材料的制备：一种基于氨基-咔唑官能化多壁碳纳米管 (MWCNTCO-NHCbz) 和聚（3-十二烷基噻吩）（P3DDT）的非共价键杂化材料和一种基于共价键合纳米杂化材料的材料。在用 3,6-二氨基-甲基咔唑 (H2NCbzNH2)、3-羧基噻吩 (ThCOOH) 和最终接枝的聚 (3-己基噻吩) (P3HT) 功能化的 MWCNT 上。这些材料通过几种光谱技术进行表征，证明它们已成功制备。除了热、电化学、电学和形态学表征外，还通过光谱电化学实验测试了两种材料的薄膜。与其他材料相比，共价键材料表现出更好的电致变色性能：光学对比度高三倍（6%）；着色效率为 10.8 C−1 cm2；几秒钟的快速响应时间；和更大的长期循环能力，呈现出稳定的变色记忆和 100 次循环后 73% 的原始电荷。这种增强的性能可能与构建块之间的共价连接提供的好处有关，这是为多功能应用定制混合材料的重要策略。