Long Jie, Liu Yuxin, Huang Zefeng, Ye Zijian, He Guping, Sun Fengqiang, Xu Bingjia, Chen Xinli, Wang Yuhai, Xing Xiaobo, Ng Kar Wei, Zhang Li, Liu Cong
School of Chemistry, South China Normal University, Guangzhou, 510006, China.
Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, China.
Chemistry. 2024 Apr 16;30(22):e202304268. doi: 10.1002/chem.202304268. Epub 2024 Mar 1.
High-quality conjugated microporous polymer (CMP) films with orientation and controlled structure are extremely desired for applications. Here, we report the effective construction of CMP 3D composite films (pZn/PTPCz) with a controlled porosity structure and preferred orientation using the template-assisted electropolymerization (EP) approach for the first time. The structure of pZn/PTPCz composite thin films and nitrophenol sensing performance were thoroughly studied. When compared to the control CMP film made on flat indium tin oxide (ITO) substrates, the as-prepared pZn/PTPCz composite films showed significantly enhanced fluorescent intensity and much better sensing performance for the model explosive. This was attributed to the metal-enhanced fluorescence (MEF) of porous nanostructured zinc (pZn) and the additional macroporosity of the pZn/PTPCz composite films. This work provides a feasible approach for creating oriented 3D CMP-based thin films for advanced applications.
具有取向性和可控结构的高质量共轭微孔聚合物（CMP）薄膜在应用中极为需要。在此，我们首次报道了使用模板辅助电聚合（EP）方法有效构建具有可控孔隙结构和择优取向的CMP 3D复合薄膜（pZn/PTPCz）。对pZn/PTPCz复合薄膜的结构和硝基苯酚传感性能进行了深入研究。与在平面铟锡氧化物（ITO）基板上制备的对照CMP薄膜相比，所制备的pZn/PTPCz复合薄膜显示出显著增强的荧光强度以及对模型炸药更好的传感性能。这归因于多孔纳米结构锌（pZn）的金属增强荧光（MEF）以及pZn/PTPCz复合薄膜的额外大孔隙率。这项工作为制备用于先进应用的取向性3D CMP基薄膜提供了一种可行的方法。
