Contact-Electrification between Two Identical Materials: Curvature Effect.

@article{Xu2019ContactElectrificationBT,
  title={Contact-Electrification between Two Identical Materials: Curvature Effect.},
  author={Cheng Xu and Binbin Zhang and Aurelia Chi Wang and Haiyang Zou and Guanlin Liu and Wenbo Ding and Changsheng Wu and M. K. Ma and Peizhong Feng and Zhiqun Lin and Zhong Lin Wang},
  journal={ACS nano},
  year={2019},
  volume={13 2},
  pages={
          2034-2041
        }
}
It is known that contact-electrification (or triboelectrification) usually occurs between two different materials, which could be explained by several models for different materials systems ( Adv. Mater. 2018, 30, 1706790; Adv. Mater. 2018, 30, 1803968). But contact between two pieces of the chemically same material could also result in electrostatic charges, although the charge density is rather low, which is hard to understand from a physics point of view. In this paper, by preparing a… 

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