Fig. 3From: Facile Fabrication of Micro-Nano Structured Triboelectric Nanogenerator with High Electric OutputMicro-nano structured TENG with high electric output. a FE-SEM of electrospun POM; the inset shows the details of the fiber. b FE-SEM of PTFE. c, d I s and V o of the TENG under external impact forces of 5 HzBack to article page