Mixed Triboelectric and Flexoelectric Charge Transfer at the Nanoscale.

ABSTRACT: The triboelectric effect is a ubiquitous phenomenon in which the surfaces of two materials are easily charged during the contact-separation process. Despite the widespread consequences and applications, the charging mechanisms are not sufficiently understood. Here, the authors report that, in the presence of a strain gradient, the charge transfer is a result of competition between flexoelectricity and triboelectricity, which could enhance charge transfer during triboelectric measurements when the charge transfers of both effects are in the same direction. When they are in the opposite directions, the direction and amount of charge transfer could be modulated by the competition between flexoelectric and triboelectric effects, which leads to a distinctive phenomenon, that is, the charge tran

SUBMITTER: Qiao H 

PROVIDER: S-EPMC8529448 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature