Unlocking the Potential of Hexagonal Boron Nitride Through Metallization

Strategic Insights -

Research conducted by Xiaohong Zheng and colleagues at Nanjing Forestry University has made a breakthrough in the metallization of hexagonal boron nitride (h-BN) monolayers. This achievement, supported by the National Natural Science Foundation of China (NSFC), holds significant promise for various fields, including memory devices. By constructing a van der Waals (vdW) heterostructure consisting of graphene, alpha-In2Se3, and h-BN, the team was able to successfully drive h-BN to become metallic, enabling nonvolatile resistance switching.

Key Takeaways:

  • The research focuses on the metallization of h-BN monolayers, which is crucial for unlocking its potential in various fields, including memory devices.
  • Current attempts to achieve metallization through carrier doping and interlayer charge transfer in vdW heterostructures have been unsuccessful.
  • A vdW heterostructure of graphene/alpha-In2Se3/h-BN was proposed, and the team successfully demonstrated charge transfer mediated by alpha-In2Se3, driving h-BN to become metallic.
  • The research concluded that the nonvolatile resistance switching of h-BN by the graphene/In2Se3/h-BN vdW heterostructure will promote its practical applications, such as memory devices.
  • The team's findings have been peer-reviewed and published in Applied Physics Letters.

Statistics:

  • h-BN is a wide bandgap material that requires metallization to unlock its potential in various fields.
  • The vdW heterostructure used in the research consists of three layers: graphene, alpha-In2Se3, and h-BN.
  • The polarization field of alpha-In2Se3 pushes the valence band of h-BN to higher energy, allowing charge transfer and metallization.
  • The nonvolatile resistance switching of h-BN enabling its practical applications, such as memory devices.

Sources:

  • Zheng, X., et al. "Nonvolatile Resistance Switching In h -bn By Van Der Waals Ferroelectric Engineering." Applied Physics Letters, vol. 127, no. 12, 2025.
  • National Natural Science Foundation of China (NSFC)
  • Xiaohong Zheng, Nanjing Forestry University
  • Jincheng Liu, Chun-Sheng Liu, Wei Xiao, and Weiyang Wang, colleagues and co-authors of the research study.
  • Applied Physics Letters, Aip Publishing (www.aip.org/; apl.aip.org/)
  • American Institute of Physics (www.aip.org/)
  • NewsRx, "Researchers from Nanjing Forestry University Report New Studies and Findings in the Area of Applied Physics (Nonvolatile Resistance Switching In h -bn By Van Der Waals Ferroelectric Engineering)." Journal of Engineering, 20 Oct. 2025, p. 3519.