Piezoelectricity

Electrical engineering

Physics

Nanotechnology

Nanogenerator

Mathematics

Energy harvesting

Statistics

Engineering

Electronics

Composite material

Power (physics)

Materials science

Polyimide

Layer (electronics)

Kapton

Flexibility (engineering)

Quantum mechanics

Triboelectric effect

EcoMat

A triboelectric nanogenerator (TENG) is a novel technology with applications in many areas, including energy harvesting, self‐powered sensing, medication, and electronics. The materials used as triboelectric layers are diverse and include polymers, metals, and inorganic materials. The most commonly used materials are dielectric polymers such as PTFE, FEP, PDMS, and Kapton. Green materials, such as cellulose‐based materials, have recently gained increasing interest, and the performance of TENGs using cellulose materials has improved. The material choices are of great importance for TENGs since the triboelectric effects of the materials are fundamental for TENGs. To design a TENG for a particular application, several parameters need to be considered, such as power density, stability, flexibility, and sustainability. This critical review will summarize and evaluate the material choices for TENGs in different applications. image

Material choices for triboelectric nanogenerators: A critical review