High Voltage Cellulose Based Flexible Triboelectric Nanogenerator

A novel flexible triboelectric nanogenerator (TENG) was designed and fabricated for energy harvesting applications. The TENG consists of polystyrene-block-polybutadiene-block-polystyrene (SBS)/polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite on cellulose paper (CLP) as negative layer; and PDMS on CLP as positive layer. The SBS/PVDF was prepared by mixing SBS (20 wt%), PVDF (0.8 wt%) in trifluoroacetic acid (TF A) solution and spray coated on CLP. Similarly, PDMS was prepared by mixing liquid pre-polymer with curing agent (10:1) and bar coated on CLP. Combination of the polymer material with CLP was first time introduced in the TENG application and the capability of the developed TENG in term of open circuit voltage (OCV) was investigated which resulted in a maximum OCV of 151 V.