Embedding variable micro-capacitors in polydimethylsiloxane for enhancing output power of triboelectric nanogenerator

Polydimethylsiloxane (PDMS) is an excellent material for investigating the mechanism of triboelectricity as it can easily be used to construct various microstructures. In this study, micro-capacitors (MCs) and variable microcapacitors (VMCs) were embedded in PDMS by filling PDMS with silver nanoparticles (NPs) and constructing an internal cellular structure. The output performance of the triboelectric nanogenerators (TENGs) based on MCs@PDMS and VMCs@PDMS films was systematically investigated, with variation of the filling content of silver NPs and the pore ratio and size. The microstructure, permittivity, dielectric loss, and capacitance of the VMCs@PDMS films were well characterized. The output current of the TENG based on the VMCs@PDMS film was respectively 4.0 and 1.6 times higher than that of the TENGs based on the pure PDMS film and MCs@PDMS film, and the output power density of the former reached 6 W·m–2. This study sheds light on the physical nature of conductive nanoparticle fillings and cellular structures in dielectric triboelectric polymers.

[1]  Zhong Lin Wang,et al.  Self-powered cleaning of air pollution by wind driven triboelectric nanogenerator , 2015 .

[2]  Junwen Zhong,et al.  Theoretical Study of Cellular Piezoelectret Generators , 2016 .

[3]  Manoj Kumar Gupta,et al.  Hydrophobic Sponge Structure‐Based Triboelectric Nanogenerator , 2014, Advanced materials.

[4]  Jun Chen,et al.  Triboelectrification-based organic film nanogenerator for acoustic energy harvesting and self-powered active acoustic sensing. , 2014, ACS nano.

[5]  Zhong Lin Wang,et al.  Flutter-driven triboelectrification for harvesting wind energy , 2014, Nature Communications.

[6]  B. Hu,et al.  Cellular Polypropylene Piezoelectret for Human Body Energy Harvesting and Health Monitoring , 2015 .

[7]  Haofei Shi,et al.  Enhancing Performance of Triboelectric Nanogenerator by Filling High Dielectric Nanoparticles into Sponge PDMS Film. , 2016, ACS applied materials & interfaces.

[8]  Zhong Lin Wang,et al.  Rotary triboelectric nanogenerator based on a hybridized mechanism for harvesting wind energy. , 2013, ACS nano.

[9]  Jun Chen,et al.  Harmonic‐Resonator‐Based Triboelectric Nanogenerator as a Sustainable Power Source and a Self‐Powered Active Vibration Sensor , 2013, Advanced materials.

[10]  Jin Woong Kim,et al.  Mesoporous pores impregnated with Au nanoparticles as effective dielectrics for enhancing triboelectric nanogenerator performance in harsh environments , 2015 .

[11]  Zhong Lin Wang,et al.  Maximum Surface Charge Density for Triboelectric Nanogenerators Achieved by Ionized‐Air Injection: Methodology and Theoretical Understanding , 2014, Advanced materials.

[12]  Chenguo Hu,et al.  Improving energy conversion efficiency for triboelectric nanogenerator with capacitor structure by maximizing surface charge density. , 2015, Nanoscale.

[13]  Hengyu Guo,et al.  Blow-driven triboelectric nanogenerator as an active alcohol breath analyzer , 2015 .

[14]  Zhong Lin Wang,et al.  Toward large-scale energy harvesting by a nanoparticle-enhanced triboelectric nanogenerator. , 2013, Nano letters.

[15]  Zhong Lin Wang,et al.  Flexible triboelectric generator , 2012 .

[16]  Yan Zhang,et al.  Self-powered acoustic source locator in underwater environment based on organic film triboelectric nanogenerator , 2015, Nano Research.

[17]  Woonbong Hwang,et al.  Energy harvesting model of moving water inside a tubular system and its application of a stick-type compact triboelectric nanogenerator , 2015, Nano Research.

[18]  Tao Jiang,et al.  Structural Optimization of Triboelectric Nanogenerator for Harvesting Water Wave Energy. , 2015, ACS nano.

[19]  Zhong Lin Wang,et al.  Networks of triboelectric nanogenerators for harvesting water wave energy: a potential approach toward blue energy. , 2015, ACS nano.

[20]  Zhong Lin Wang,et al.  Woven structured triboelectric nanogenerator for wearable devices. , 2014, ACS applied materials & interfaces.

[21]  Minhao Zhu,et al.  Lawn Structured Triboelectric Nanogenerators for Scavenging Sweeping Wind Energy on Rooftops , 2016, Advanced materials.

[22]  J. Yu,et al.  PDMS-based triboelectric and transparent nanogenerators with ZnO nanorod arrays. , 2014, ACS applied materials & interfaces.

[23]  Zhong Lin Wang,et al.  Hybrid triboelectric nanogenerator for harvesting water wave energy and as a self-powered distress signal emitter , 2014 .

[24]  Zhong Lin Wang,et al.  Simultaneously harvesting electrostatic and mechanical energies from flowing water by a hybridized triboelectric nanogenerator. , 2014, ACS nano.

[25]  Wei Tang,et al.  Cover-sheet-based nanogenerator for charging mobile electronics using low-frequency body motion/vibration , 2014 .

[26]  Zhong Lin Wang,et al.  Harvesting Water Drop Energy by a Sequential Contact‐Electrification and Electrostatic‐Induction Process , 2014, Advanced materials.

[27]  Simiao Niu,et al.  Triboelectric Nanogenerator Based on Fully Enclosed Rolling Spherical Structure for Harvesting Low‐Frequency Water Wave Energy , 2015 .

[28]  Simiao Niu,et al.  Topographically-designed triboelectric nanogenerator via block copolymer self-assembly. , 2014, Nano letters.

[29]  Zhong Lin Wang,et al.  A universal self-charging system driven by random biomechanical energy for sustainable operation of mobile electronics , 2015, Nature Communications.

[30]  Zhong Lin Wang,et al.  Hybrid energy cell for simultaneously harvesting wind, solar, and chemical energies , 2014, Nano Research.

[31]  Long Lin,et al.  Nanoscale triboelectric-effect-enabled energy conversion for sustainably powering portable electronics. , 2012, Nano letters.

[32]  Caofeng Pan,et al.  Triboelectric-generator-driven pulse electrodeposition for micropatterning. , 2012, Nano letters.

[33]  Chenguo Hu,et al.  Honeycomb-like three electrodes based triboelectric generator for harvesting energy in full space and as a self-powered vibration alertor , 2015 .

[34]  Haofei Shi,et al.  Foldable and portable triboelectric-electromagnetic generator for scavenging motion energy and as a sensitive gas flow sensor for detecting breath personality , 2015, Nanotechnology.

[35]  B. Hu,et al.  Sandwiched Composite Fluorocarbon Film for Flexible Electret Generator , 2016 .

[36]  Jun Zhou,et al.  Paper‐Based Active Tactile Sensor Array , 2015, Advanced materials.

[37]  Zhong Lin Wang,et al.  Functional electrical stimulation by nanogenerator with 58 V output voltage. , 2012, Nano letters.

[38]  Myeong-Lok Seol,et al.  A Triboelectric Sponge Fabricated from a Cube Sugar Template by 3D Soft Lithography for Superhydrophobicity and Elasticity , 2016 .