Research on PDMS TENG of laser etch 3D structure

Abtract In recent years, the development boom of the triboelectric nanogenerator (TENG) has attracted the attention of many researchers. Compared with the research on the surface structure and chemical modification of the friction layer, the improvement of the spatial structure of the friction layer has a profound impact on triboelectricity. This study uses laser etching technology to design the friction layer of TENG as a micro-pillar array, which increases its friction area. This structure is also conducive to the rapid contact and separation of the friction layer. Through the test, the open-circuit voltage Voc and short-circuit current the amplitudes of Isc are as high as 49 V and 1.008 mu A, respectively; and the output power of this TENG device is 56.82 mu w, the output signal of 5000 s is repeatedly tested and has good stability and consistency. In terms of practical application: The device charges 1.1, 3.3, 4.7 and 10 mu F capacitors for 100 s and can store voltage values of 3.92, 2.06, 1.82 and 1.35 V. At the same time, TENG can collect the mechanical energy of human movement, showing great potential in wearable electronic devices and other fields.