Abstract.
Charge transfer between graphene and a metal during contact electrification is theoretically investigated herein using a double graphene triboelectric nanogenerator (TENG) as a model system. This contact-separation process has been widely used in energy harvesting, where maximization of the tribo-charge density from an efficiency point of view is preferred. Herein, we introduce an analytical approach for calculating the Fermi energy shift with respect to the graphene conical point as a function of the graphene-metal distance with a change in the work function between the metal and graphene. This theoretical model for understanding the charge transfer between graphene and the metal can potentially be used to enhance device performance of two-dimensional energy harvesting systems.
Similar content being viewed by others
References
W.R. Harper, Contact and Frictional Electrification, 1st edition (Springer, Morgan Hill, CA, 1998)
R.G. Horn, D.T. Smith, Science 256, 5055 (1992)
R.G. Horn, D.T. Smith, A. Grabbe, Nature 366, 442 (1993)
C.-Y. Liu, A.J. Bard, Nat. Mater. 7, 505 (2008)
M.M. Apodaca, P.J. Wesson, K.J. Bishop, M.A. Ratner, B.A. Grzibowski, Angew. Chem. Int. Ed. 49, 5 (2010)
H.T. Baytekin, A.Z. Patashinski, M. Branicki, B. Baytekin, S. Soh, B.A. Grzibowski, Science 333, 6040 (2011)
F.-R. Fan, Z.-Q. Tian, Z.L. Wang, Nano Energy 1, 2 (2012)
Y. Yang, Z. Hulin, Z. Xiandai, Y. Fang, Y. Ruomeng, Z. Yue, Z.L. Wang, ACS Appl. Mater. Interfaces 6, 5 (2014)
S. Wang, S. Niu, J. Yang, L. Lin, Z.L. Wang, ACS Nano 8, 12 (2014)
J. Yang, J. Chen, Y. Yang, H. Zhang, W. Yang, P. Bai, Y. Su, Z.L. Wang, Adv. Energy Mater. 4, 6 (2014)
J. Bae, J. Lee, S. Kim, J. Ha, B.-S. Lee, Y. Park, C. Choong, J.-B. Kim, Z.L. Wang, Nat. Commun. 5, 4929 (2014)
Y. Yang, G. Zhu, H. Zhang, J. Chen, X. Zhong, Z.-H. Lin, Y. Su, P. Bai, X. Wen, Z.L. Wang, ACS Nano 7, 10 (2013)
G. Zhu, Y. Su, P. Bai, J. Chen, Q. Jing, W. Yang, Z.L. Wang, ACS Nano 8, 6 (2014)
Y. Su, X. Wen, G. Zhu, Z.L. Wang, Nano Energy 9, 186 (2014)
G. Zhu, Z.-H. Lin, Q. Jing, P. Bai, C. Pan, Y. Yang, Y. Zhou, Z.L. Wang, Nano Lett. 13, 2 (2013)
P. Bai, G. Zhu, Z.-H. Lin, Q. Jing, J. Chen, G. Zhang, J. Ma, Z.L. Wang, ACS Nano 7, 4 (2013)
S. Niu, Y. Liu, S. Wang, Y.S. Zhou, Y. Hu, Z.L. Wang, Adv. Mater. 25, 43 (2013)
S.M. Niu, S. Wang, L. Lin, Y. Liu, Y.S. Zhou, Y. Hu, Z.L. Wang, Energy Environ. Sci. 6, 12 (2013)
G. Giovannetti, P.A. Khomyakov, G. Brocks, V.M. Karpan, J. van den Brink, P.J. Kelly, Phys. Rev. Lett. 101, 026803 (2008)
V. Panchal, R. Pearce, R. Yakimova, A. Tzalenchuk, O. Kazakova, Sci. Rep. 3, 2597 (2013)
J. Cazaux, Appl. Phys. Lett. 98, 013109 (2011)
Z. Wang, R. Scharstein, Chem. Phys. Lett. 489, 229 (2010)
C. Liu, Z. Yu, D. Neff, A. Zhamu, B.Z. Jang, Nano Lett. 10, 4863 (2010)
S. Kim, M.K. Gupta, K.Y. Lee, A. Sohn, T.Y. Kim, K.-S. Shin, D. Kim, S.K. Kim, K.H. Lee, H.-J. Shin, D.-W. Kim, S.-W. Kim, Adv. Mater. 26, 3918 (2014)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kim, S.M. Theoretical study on a graphene triboelectric nanogenerator with metal contacts. Eur. Phys. J. Plus 133, 334 (2018). https://doi.org/10.1140/epjp/i2018-12189-4
Received:
Accepted:
Published:
DOI: https://doi.org/10.1140/epjp/i2018-12189-4