2D Materials: Probing Effective Out‐of‐Plane Piezoelectricity in van der Waals Layered Materials Induced by Flexoelectricity (Small 46/2019)

The piezoelectric property of van der Waals materials is difficult to be collected and quantified experimentally. In article number 1903106, Zhigao Hu and co-workers present an efficient scanning probe method to quantify the effective out-of-plane electromechanical coupling response on 2D layered materials including MoS2 and InSe by a free-standing designation.