title: Novel Piezoelectric Paper-Based Flexible Nanogenerators Composed of BaTiO3Nanoparticles and Bacterial Cellulose.
abstract: A piezoelectric paper based on BaTiO3(BTO) nanoparticles and bacterial cellulose (BC) with excellent output properties for application of nanogenerators (NGs) is reported. A facile and scalable vacuum filtration method is used to fabricate the piezoelectric paper. The BTO/BC piezoelectric paper based NG shows outstanding output performance with open-circuit voltage of 14 V and short-circuit current density of 190 nA cm-2. The maximum power density generated by this unique BTO/BC structure is more than ten times higher than BTO/polydimethylsiloxane structure. In bending conditions, the NG device can generate output voltage of 1.5 V, which is capable of driving a liquid crystal display screen. The improved performance can be ascribed to homogeneous distribution of piezoelectric BTO nanoparticles in the BC matrix as well as the enhanced stress on piezoelectric nanoparticles implemented by the unique percolated networks of BC nanofibers. The flexible BTO/BC piezoelectric paper based NG is lightweight, eco-friendly, and cost-effective, which holds great promises for achieving wearable or implantable energy harvesters and self-powered electronics.
authors: Department of Materials Physics and Chemistry University of Science and Technology Beijing Beijing 100083 P.R. China.
authors: Guangjie
authors: G
authors: Zhang
authors: Department of Materials Physics and Chemistry University of Science and Technology Beijing Beijing 100083 P.R. China.
authors: Qingliang
authors: Q
authors: Liao
authors: Department of Materials Physics and Chemistry University of Science and Technology Beijing Beijing 100083 P.R. China.
authors: Zheng
authors: Z
authors: Zhang
authors: Department of Materials Physics and Chemistry University of Science and Technology Beijing Beijing 100083 P.R. China.
authors: Qijie
authors: Q
authors: Liang
authors: Department of Materials Physics and Chemistry University of Science and Technology Beijing Beijing 100083 P.R. China.
authors: Yingli
authors: Y
authors: Zhao
authors: Department of Materials Physics and Chemistry University of Science and Technology Beijing Beijing 100083 P.R. China.
authors: Xin
authors: X
authors: Zheng
authors: Department of Materials Physics and ChemistryUniversity of Science and Technology BeijingBeijing100083P.R. China; Key Lab for New Energy and NanotechnologyUniversity of Science and Technology BeijingBeijing100083P.R. China.
authors: Yue
authors: Y
authors: Zhang
keywords: bacterial cellulose; barium titanate; energy harvester; nanogenerators; piezoelectric paper