Effect on TENG Performance by Phase Control of TiOx Nanoparticles
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
One of the critical parameters to improve the output power for triboelectric nanogenerators (TENGs) is the surface charge density. In this work, we modify the tribo-material of TENG by introducing the TiOx embedded Polydimethylsiloxane (PDMS) in anatase and rutile phase. The effect of dielectric constant and electronic structure of the TiOx on the capacitance of TENG and the output power as well are discussed. The surface charge density is increased as the control of the dielectric constant in difference weight percent of TiOx and PDMS. As the results of that, the 5% TiOx rutile phase and 7% TiOx anatase phase embedded PDMS exhibit the highest TENG output. The peak value of voltage/current obtained from TiOx rutile and anatase phase are ~180 V/8.2 μA and 211.6 V/8.7 μA, respectively, at the external force of 5 N and working frequency of 5 Hz, which gives over 12-fold and 15-fold power enhancement compared with the TENG based on the pristine PDMS film. This study provides a better understanding for TENG performance enhancement from the materials view.
Abstract
One of the critical parameters to improve the output power for triboelectric nanogenerators (TENGs) is the surface charge density. In this work, we modify the tribo-material of TENG by introducing the TiOx embedded Polydimethylsiloxane (PDMS) in anatase and rutile phase. The effect of dielectric constant and electronic structure of the TiOx on the capacitance of TENG and the output power as well are discussed. The surface charge density is increased as the control of the dielectric constant in difference weight percent of TiOx and PDMS. As the results of that, the 5% TiOx rutile phase and 7% TiOx anatase phase embedded PDMS exhibit the highest TENG output. The peak value of voltage/current obtained from TiOx rutile and anatase phase are ~180 V/8.2 μA and 211.6 V/8.7 μA, respectively, at the external force of 5 N and working frequency of 5 Hz, which gives over 12-fold and 15-fold power enhancement compared with the TENG based on the pristine PDMS film. This study provides a better understanding for TENG performance enhancement from the materials view.
참고문헌 (18)
- Zhu, G, "Triboelectric Nanogenerators as a New Energy Technology: From Fundamentals, Devices, to Applications", Nano Energy, 14, pp.126~138 (2015)
- Wang, Z.L, "On Maxwell's Displacement Current for Energy and Sensors: the Origin of Nanogenerators", Materials Today, 20(2), pp.74~82 (2017)
- Byun, K.E, "Control of Triboelectrification by Engineering Surface Dipole and Surface Electronic State", ACS Applied Materials & Interfaces, 8(28), pp.18519~18525 (2016)
- He, X, "Improving Energy Conversion Efficiency for Triboelectric Nanogenerator with Capacitor Structure by Maximizing Surface Charge Density", Nanoscale, 7(5), pp.1896~1903 (2015)
- Chen, J, "Enhancing Performance of Triboelectric Nanogenerator by Filling High Dielectric Nanoparticles into Sponge PDMS Film", ACS Applied Materials & Interfaces, 8(1), pp.736~744 (2015)
- Dudem, B, "Nanopillar-array Architectured PDMSBased Triboelectric Nanogenerator Integrated with a Windmill Model for Effective Wind Energy Harvesting", Nano Energy, 42, pp.269~281 (2017)
- Lee, K.Y, "Hydrophobic Sponge Structure‐based Triboelectric Nanogenerator", Advanced Materials, 26(29), pp.5037~5042 (2014)
- Jeong, C.K, "Topographically-designed Triboelectric Nanogenerator via Block Copolymer Self-assembly", Nano Letters, 14(12), pp.7031~7038 (2014)
- Park, H.W, "Electron Blocking Layer-based Interfacial Design for Highly-enhanced Triboelectric Nanogenerators", Nano Energy, 50, pp.9~15 (2018)
- Park, K.I, "Flexible Nanocomposite Generator Made of BaTiO3 Nanoparticles and Graphitic Carbons", Advanced Materials, 24(22), pp.2999~3004 (2012)
- Sun, H, "A Novel Flexible Nanogenerator Made of ZnO Nanoparticles and Multiwall Carbon Nanotube", Nanoscale, 5(13), pp.6117~6123 (2013)
- Nguyen, V, "Effect of Humidity and Pressure on the Triboelectric Nanogenerator", Nano Energy, 2(5), pp.604~608 (2013)
- Lu, C.X, "Temperature Effect on Performance of Triboelectric Nanogenerator", Advanced Engineering Materials, 19(12), pp.1700275~ (2017)
- Kim, W, "Kinematic Design for High Performance Triboelectric Nanogenerators with Enhanced Working Frequency", Nano Energy, 21, pp.19~25 (2016)
- Bhatia, D, "Tandem Triboelectric Nanogenerators for Optimally Scavenging Mechanical Energy with Broadband Vibration Frequencies", Nano Energy, 33, pp.515~521 (2017)
- Bhatia, D, "Design of Mechanical Frequency Regulator for Predictable Uniform Power from tribOelectric Nanogenerators", Advanced Energy Materials, 8(15), pp.1702667~ (2018)
- n, F.R, "Transparent Triboelectric Nanogenerators and Self-powered Pressure Sensors Based on Micropatterned Plastic Films", Nano Letters, 12(6), pp.3109~3114 (2012)
- Lee, K.Y, "Hydrophobic Sponge Structure-based Triboelectric Nanogenerator", Advanced Materials, 26(29), pp.5037~5042 (2014)