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A detailed geometric analysis of spherical triboelectric nanogenerators is presented. In comparison with earlier works on spherical triboelectric generators, the general case where the moving dielectric rolls on the inside surface of the larger sphere of the TENG is discussed in terms of maximum energy harvesting. An optimization analysis of geometrical parameters allows various cases of electrode geometry, either in the form of a spherical circle, spherical ellipse, spherical rectangle, or spherical isosceles trapezium, to be solved. The analytical insight and computational effective models provided by differential geometry make the mathematical model superior compared to standard three-dimensional (3D) numerical methods.
Fan, F. R.; Tian, Z. Q.; Wang, Z. L. Flexible triboelectric generator. Nano Energy 2012, 1, 328–334.
Horn, R. G.; Smith, D. T.; Grabbe, A. Contact electrification induced by monolayer modification of a surface and relation to acid-base interactions. Nature 1993, 366, 442–443.
Lowell, J.; Rose-Innes, A. C. Contact electrification. Adv. Phys. 1980, 29, 947–1023.
Wang, Z. L. Triboelectric nanogenerators as new energy technology for self-powered systems and as active mechanical and chemical sensors. ACS Nano 2013, 7, 9533–9557.
Hinchet, R.; Yoon, H. J.; Ryu, H.; Kim, M. K.; Choi, E. K.; Kim, D. S.; Kim, S. W. Transcutaneous ultrasound energy harvesting using capacitive triboelectric technology. Science 2019, 365, 491–494.
Wang, Z. L. New wave power. Nature 2017, 542, 159–160.
Shao, J. J.; Willatzen, M.; Wang, Z. L. Theoretical modeling of triboelectric nanogenerators (TENGs). J. Appl. Phys. 2020, 128, 111101.
Gravesen, J.; Willatzen, M.; Shao, J. J.; Wang, Z. L. Energy optimization of a mirror-symmetric spherical triboelectric nanogenerator. Adv. Funct. Mater. 2022, 32, 2110516.
Gravesen, J.; Willatzen, M.; Shao, J. J.; Wang, Z. L. Modeling and optimization of a rotational symmetric spherical triboelectric generator. Nano Energy 2022, 100, 107491.