Charge Transfer Between Two-Dimensional Materials

Contact electrification is a ubiquitous phenomenon involving charge transfer that is still poorly understood. It has been proposed as a clean energy source for the Internet of Things in triboelectric nanogenerators (TENGs). Recently, we proposed a microscopic model in one-dimension in order to study the dynamics of electrons between atomic chains [M. Willatzen, L. C. Lew Yan Voon, and Z.-L. Wang, Adv. Func. Mat. 1910461 (2020)]. In this talk, we compare the charge transfer between two-dimensional materials with different Bravais lattices in order to assess the relevance of using two-dimensional materials in the design of TENGs.