Directly measuring flexoelectric coefficients <i>μ</i><sub>11</sub> of the van der Waals materials
Menghan Deng, Xiang Wang, Xionghu Xu, Anyang Cui, Kai Jiang, Jinzhong Zhang, Liangqing Zhu, Liyan Shang, Yawei Li, Zhigao Hu, Junhao Chu
Abstract
. The quantification of the flexoelectric constant in this work not only promotes the understanding of mechanical and electromechanical properties in van der Waals materials, but also paves the way for developing novel 2D nano-energy devices and mechanical transducers based on flexoelectric effects.
Topics & Concepts
van der Waals forceMaterials scienceFlexoelectricityMonolayerHamaker constantRaman spectroscopyPiezoelectricityDLVO theoryPolarization (electrochemistry)Electromechanical coupling coefficientCondensed matter physicsPiezoresponse force microscopyNanomechanicsNanotechnologyAtomic force microscopyComposite materialVan der Waals radiusDielectricOpticsOptoelectronicsChemistryMoleculePhysicsPhysical chemistryFerroelectricityOrganic chemistryColloid2D Materials and ApplicationsNonlocal and gradient elasticity in micro/nano structuresMXene and MAX Phase Materials