Mayeen Anshida, M S Kala, Jayalakshmy M S, Thomas Sabu, Rouxel Didier, Philip Jacob, Bhowmik R N, Kalarikkal Nandakumar
School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, Kerala 686 560, India.
Dalton Trans. 2018 Feb 6;47(6):2039-2051. doi: 10.1039/c7dt03389c.
Electro-active polymer-ceramic composite systems are emerging materials in the fields of nanoelectronic, microelectromechanical and macroelectronic device applications. Still more precise and concise research studies have yet to come in the areas of energy storage, harvesting, energy conversion, etc. In line with this, we have synthesized and analyzed PVDF-TrFE based nanocomposites of both functionalized and non-functionalized BaTiO (BTO). All the samples were prepared as free standing films by employing a solvent cast method. A systematic study of structural, morphological, thermal, dielectric, ferroelectric, piezoelectric and magnetoelectric (ME) properties has been carried out. It has been reported that the addition of BTO nanoparticles (with and without functionalization) into a polymer matrix substantially improved the properties of the nanocomposite. By performing the above mentioned characterization, it could be proved that dopamine functionalized BTO (DBTO) samples are better choices for the above mentioned applications including magnetoelectric applications, than the non-functionalized ones.
电活性聚合物-陶瓷复合体系是纳米电子、微机电和宏观电子器件应用领域中新兴的材料。在能量存储、收集、能量转换等领域,仍有待开展更精确、更简洁的研究。与此相符的是,我们合成并分析了功能化和非功能化钛酸钡(BTO)的聚偏氟乙烯-三氟乙烯(PVDF-TrFE)基纳米复合材料。所有样品均采用溶液浇铸法制备成自支撑薄膜。对其结构、形态、热学、介电、铁电、压电和磁电(ME)性能进行了系统研究。据报道,向聚合物基体中添加BTO纳米颗粒(有无功能化)可显著改善纳米复合材料的性能。通过进行上述表征,可以证明多巴胺功能化的BTO(DBTO)样品在包括磁电应用在内的上述应用中,比未功能化的样品是更好的选择。