PDF Publication Title:
Text from PDF Page: 009
Triboelectric nanogenerators as a new energy technology: From fundamentals, devices, to applications 9 [37]. The structure provides a novel and simple method to stack multiple TENGs without either expanding the area or considerably complicating the fabrication process. As a con- sequence, we were able to achieve multi-folds enhancement of the output power while keeping the TENG's area constant. A TENG with a size of 3.8 cm 3.8 cm 0.95 cm contains 5 active layers of units that are parallel connected. The instantaneous short-circuit current and the open-circuit voltage could reach 0.66 mA and 215 V, corresponding to an instantaneous power density of 9.76 mW/cm2 and 10.24 mW/cm3 at device level. Micro-structure When we first proposed the basic sliding mode, a concept of linear gratings was demonstrated to enhance the current amplitude, current frequency, and conversion efficiency [17]. Identical linear grating with uniform period is fabri- cated on both sliding surfaces. Every row of the grating units can be considered as a reduced-sized TENG; and it is in parallel connection with all other rows. In contrast to a non- grating TENG that needs to be fully displaced in order to complete pumping of the induced charges for one time, the grating TENG only requires a displacement of a unit length to completely transport the induced charges. Therefore, for a one-way sliding process across the entire length of the TENG, the induced charges can be pumped for (2N 1) times in total, where N is the number of grating units. The following equation represents the total induced charges Q in a single sliding across the entire length of the TENG. Fig. 8 Structure and photographs of a flexible multilayered TENG with 5 layers of units. (a) Schematic and (b) an enlarged view of the zigzag-shaped structure of the TENG. (c) SEM image of nano-pores on aluminum foils. (d) Photograph of a fabricated flexible multilayered TENG and (e) photograph of a bent flexible multilayered TENG by human fingers. Fig. 9 Electrical measurement results of grating TENGs with multiple grating units within a fixed total length. Short-circuit current of a grating TENG with 6 (a), 8 (b) and 10 (c) grating units for a single sliding process across the full width of the TENG. Insets: schematic of the TENGs structure. Q 1⁄4Nq'þjq' ðN1Þjþq' ðN1Þþ...þjq'jþq' ''N1 1⁄4Nq þ2q ∑ i i1⁄41 1⁄4 ð2q'NÞN=2 ð4Þ where q' is the induced charges generated from a single grating unit for a displacement of the unit length. As shown in Fig. 9a–c, the amplitude of short-circuit current produced by TENGs having 6, 8 and 10 grating units increases in a linear manner, as indicated in Eq. (4). Therefore, high-density and fine-sized periodic pattern on the sliding surface is the key to substantially promote the output power of the TENG. Following the above grating concept, we developed two types of high-performance TENGs that have fine-sized periodic patterns of different shapes. One of them is based linear micro-gratings [19]. The device is composed of PTFE thin films with a pair of metal gratings on opposite sides. As schemed in Fig. 10a, the grating is a collection of metal Please cite this article as: G. Zhu, et al., Triboelectric nanogenerators as a new energy technology: From fundamentals, devices, to applications, Nano Energy (2014), http://dx.doi.org/10.1016/j.nanoen.2014.11.050PDF Image | Triboelectric nanogenerators as a new energy technology
PDF Search Title:
Triboelectric nanogenerators as a new energy technologyOriginal File Name Searched:
15_NE_13.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)