Effect of surface density of states and dielectric constant on the transferred charges (Q_sc) of triboelectric nanogenerators: Analytical and numerical study

ABSTRACT

A theoretical model of the transferred charges from the contact-mode triboelectric nanogenerator (TENG) was performed in this work. Based on the analytical model, a triboelectric charge density consisting of structural parameters and averaged surface DOS () was used to calculate the transferred charges, (Q_sc), and the relationship between the Q_sc, the dielectric constant, and the was investigated. The model presented here is the first use of the parameter-dependent triboelectric charge density to derive the transferred charges. This can provide practical guidance on TENG design in energy harvesting application.

KEYWORDS:

• Surface density of states
• transferred charges
• triboelectric nanogenerators

Funding

This work is supported by the Office of Energy Harvesting and Energy Science in Korea.