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Harvesting all sources of available clean energy is an essential strategy to contribute to healing current dependence on non-sustainable energy sources. Recently, triboelectric nanogenerators (TENGs) have gained visibility as new mechanical energy harvester offering a valid alternative to batteries, being particularly suitable for portable devices. Here, the increased capacitance of a few-layer graphene-based electrode is obtained by incorporating nitrogen-doped graphene (N-graphene), enabling a 3-fold enhancement in TENGs’ power output. The dependence of TENGs’ performance on the electronic properties of different N-graphene types, varying in the doping concentration and in the relative content of N-pyridinic and N-graphitic sites is investigated. These sites have different electron affinities, and synergistically contribute to the variation of the capacitive and resistive properties of N-graphene and …
Publication date: 
1 Sep 2021

Giuseppina Pace, Michele Serri, Antonio Esau del Rio Castillo, Alberto Ansaldo, Simone Lauciello, Mirko Prato, Lea Pasquale, Jan Luxa, Vlastimil Mazánek, Zdenek Sofer, Francesco Bonaccorso

Biblio References: 
Volume: 87 Pages: 106173
Nano Energy