High Quality Electret Based Triboelectric Nanogenerator for Boosted and Reliable Electrical Output Performance

The triboelectric nanogenerator (TENG) is in the spotlight due to its advantages of material and processing diversity. Despite these advantages, for its practical utilization, the output performance of the TENG still needs to be enhanced. Unlike most of the previous approach to increase triboelectricity between two contact surfaces, in this paper, the output performance is significantly enhanced by improving the electrical charge induction through employment of a stably pre-charged electret. The main advantages of the proposed strategy is stable long term output enhancement of the TENG. For the first time, the eminent concept of “quality of electrical charges” on the electret is proposed as the degree of helpfulness of the electrical charges to enhance the electrical output performance of the TENG. In this regard, a procedure to develop the electret with high quality electrical charges in deep traps, which determines long-term performance of the TENG, is systematically investigated to maximize the amount of electrical charges and simultaneously minimize their escape to the external environment. In consequence, unlike existing studies only focusing on immediate enhancement of electrical output performance of the TENG with electret, this study provides the strategy to stably enhance the output performance for a long time. This strategy becomes dominant especially with weak contact force generating small oscillation without strong contact between two materials. Thus, using the developed electret, enhanced and reliable performance of the energy harvester is further demonstrated as a proof of niche application to effectively harvest energy from weak vibration of an automobile engine.

[1]  Wei Tang,et al.  Multilayered electret films based triboelectric nanogenerator , 2016, Nano Research.

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

[3]  Fang Zhang,et al.  Nanowire-composite based flexible thermoelectric nanogenerators and self-powered temperature sensors , 2012, Nano Research.

[4]  Qitao Zhou,et al.  Treefrog Toe Pad‐Inspired Micropatterning for High‐Power Triboelectric Nanogenerator , 2019, Advanced Functional Materials.

[5]  Meng Su,et al.  Simply Structured Wearable Triboelectric Nanogenerator Based on a Hybrid Composition of Carbon Nanotubes and Polymer Layer , 2020, International Journal of Precision Engineering and Manufacturing-Green Technology.

[6]  Zhong Lin Wang.  Triboelectric nanogenerators as new energy technology for self-powered systems and as active mechanical and chemical sensors. , 2013, ACS nano.

[7]  Teresa J. Feo,et al.  Structural absorption by barbule microstructures of super black bird of paradise feathers , 2018, Nature Communications.

[8]  Dukhyun Choi,et al.  Transparent and attachable ionic communicators based on self-cleanable triboelectric nanogenerators , 2018, Nature Communications.

[9]  Wanchul Seung,et al.  Fully Stretchable Textile Triboelectric Nanogenerator with Knitted Fabric Structures. , 2017, ACS nano.

[10]  K. Ahn,et al.  Self-powered Flexible PDMS Channel Assisted Discrete Liquid Column Motion Based Triboelectric Nanogenerator (DLC-TENG) as Mechanical Transducer , 2019, International Journal of Precision Engineering and Manufacturing-Green Technology.

[11]  Sung Jea Park,et al.  Development of a highly transparent and flexible touch sensor based on triboelectric effect , 2019, Functional Composites and Structures.

[12]  Charles M. Lieber,et al.  Coaxial silicon nanowires as solar cells and nanoelectronic power sources , 2007, Nature.

[13]  Zhong Lin Wang,et al.  Triboelectric nanogenerator built inside shoe insole for harvesting walking energy , 2013 .

[14]  Dong Sung Kim,et al.  Spontaneous electrical charging of droplets by conventional pipetting , 2013, Scientific Reports.

[15]  W. Stark.  Electret formation by electrical discharge in air , 1989 .

[16]  Y. Choi,et al.  Efficient Microfluidic Power Generator Based on Interaction between DI Water and Hydrophobic-Channel Surface , 2018 .

[17]  Maciej Haranczyk,et al.  Metal–organic framework with optimally selective xenon adsorption and separation , 2016, Nature Communications.

[18]  A. Alivisatos,et al.  Hybrid Nanorod-Polymer Solar Cells , 2002, Science.

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

[20]  J. M. Baik,et al.  Kinematic design for high performance triboelectric nanogenerators with enhanced working frequency , 2016 .

[21]  Zhong Lin Wang,et al.  Direct-Current Nanogenerator Driven by Ultrasonic Waves , 2007, Science.

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

[23]  Zhong Lin Wang,et al.  Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays , 2006, Science.

[24]  Hyekyoung Choi,et al.  A Review on Eco-Friendly Quantum Dot Solar Cells: Materials and Manufacturing Processes , 2018 .

[25]  Rusen Yang,et al.  Effect of humidity and pressure on the triboelectric nanogenerator , 2013 .

[26]  Xia Zhongfu,et al.  Influence of environment humidity on properties of FEP, PTFE, PCTFE and PI film electrets , 1994, Proceedings of 8th International Symposium on Electrets (ISE 8).

[27]  Tao Jiang,et al.  Multilayer wavy-structured robust triboelectric nanogenerator for harvesting water wave energy , 2016 .

[28]  R. Gerhard,et al.  Enhanced electret charge stability on polyethylene films treated with titanium-tetrachloride vapor , 2012, IEEE Transactions on Dielectrics and Electrical Insulation.

[29]  Zhong Lin Wang,et al.  Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO2 nanomaterials. , 2013, ACS nano.

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

[31]  Long Lin,et al.  Robust triboelectric nanogenerator based on rolling electrification and electrostatic induction at an instantaneous energy conversion efficiency of ∼ 55%. , 2015, ACS nano.

[32]  Tae Yun Kim,et al.  Nanopatterned textile-based wearable triboelectric nanogenerator. , 2015, ACS nano.

[33]  Zachary A. Lamport,et al.  A simple and robust approach to reducing contact resistance in organic transistors , 2018, Nature Communications.

[34]  K. Ahn,et al.  Mechanically Active Transducing Element Based on Solid–Liquid Triboelectric Nanogenerator for Self-Powered Sensing , 2019, International Journal of Precision Engineering and Manufacturing-Green Technology.

[35]  José A. Giacometti,et al.  Corona charging of polymers , 1992 .

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

[37]  Gang Chen,et al.  High-performance flat-panel solar thermoelectric generators with high thermal concentration. , 2011, Nature materials.

[38]  Dae Yun Kim,et al.  Design and optimization of rotating triboelectric nanogenerator by water electrification and inertia , 2016 .

[39]  E. A. Baum,et al.  Decay of electrical charge on polyethylene films , 1977 .

[40]  Jongbaeg Kim,et al.  Flexible Energy Harvester with Piezoelectric and Thermoelectric Hybrid Mechanisms for Sustainable Harvesting , 2019, International Journal of Precision Engineering and Manufacturing-Green Technology.

[41]  Hanlu Zhang,et al.  An electret film-based triboelectric nanogenerator with largely improved performance via a tape-peeling charging method , 2018, Nano Energy.

[42]  Erjun Liang,et al.  Single-electrode triboelectric nanogenerator for scavenging friction energy from rolling tires , 2015 .

[43]  L. Bell.  Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems , 2008, Science.

[44]  D. Choi,et al.  A Simple Approach to Characterize Gas-Aqueous Liquid Two-phase Flow Configuration Based on Discrete Solid-Liquid Contact Electrification , 2015, Scientific Reports.

[45]  Dong Sung Kim,et al.  A zeta (ζ)-pipet tip to reduce the spontaneously induced electrical charge of a dispensed aqueous droplet. , 2014, Langmuir : the ACS journal of surfaces and colloids.

[46]  Guang Zhu,et al.  Triboelectric nanogenerators as a new energy technology: From fundamentals, devices, to applications , 2015 .

[47]  Arunkumar Chandrasekhar,et al.  Metal–Organic Framework: A Novel Material for Triboelectric Nanogenerator–Based Self‐Powered Sensors and Systems , 2019, Advanced Energy Materials.

[48]  Kyung Jin Park,et al.  Light-transformable and -healable triboelectric nanogenerators , 2017 .

[49]  Sang‐Jae Kim,et al.  Phase inversion enabled energy scavenger: A multifunctional triboelectric nanogenerator as benzene monitoring system , 2019, Sensors and Actuators B: Chemical.

[50]  D. Choi,et al.  Development of the Triboelectric Nanogenerator Using a Metal-to-Metal Imprinting Process for Improved Electrical Output , 2018, Micromachines.

[51]  Jae Won Lee,et al.  Boosted output performance of triboelectric nanogenerator via electric double layer effect , 2016, Nature Communications.

[52]  Venkateswaran Vivekananthan,et al.  A fully packed water-proof, humidity resistant triboelectric nanogenerator for transmitting Morse code , 2019, Nano Energy.

[53]  Jie Chen,et al.  Airflow-induced triboelectric nanogenerator as a self-powered sensor for detecting humidity and airflow rate. , 2014, ACS applied materials & interfaces.

[54]  Peter Ping-yi Tsai,et al.  Different electrostatic methods for making electret filters , 2002 .

[55]  Shaoyu Liu,et al.  A self-powered smart safety belt enabled by triboelectric nanogenerators for driving status monitoring , 2019, Nano Energy.

[56]  Dong Sung Kim,et al.  Spontaneous occurrence of liquid-solid contact electrification in nature: Toward a robust triboelectric nanogenerator inspired by the natural lotus leaf , 2017 .

[57]  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.

[58]  Zhong Lin Wang,et al.  Triboelectric nanogenerator built on suspended 3D spiral structure as vibration and positioning sensor and wave energy harvester. , 2013, ACS nano.

[59]  Zhong Lin Wang.  Triboelectric nanogenerators as new energy technology and self-powered sensors - principles, problems and perspectives. , 2014, Faraday discussions.

[60]  Dong Sung Kim,et al.  Capacitive Control of Spontaneously Induced Electrical Charge of Droplet by Electric Field-Assisted Pipetting , 2015, Nano-micro letters.