Synthetic Band Structure Engineering of Graphene Using Block Copolymer-Templated Dielectric Superlattices.

• Tác giả: Gregory S Doerk, Zhujun Huang, Moeid Jamalzadeh, Kim Kisslinger, Miguel Manzo-Perez, Pilkyung Moon, Davood Shahrjerdi, Takashi Taniguchi, Kenji Watanabe, Zihan Zhang
• Ngôn ngữ: eng
• Thông tin xuất bản: United States : ACS nano , 2025
• Bộ sưu tập: NCBI
• ID: 722855

Tóm tắt

Engineering the electronic band structure of two-dimensional (2D) materials by imposing spatially periodic superlattice (SL) potentials opens a pathway to unconventional electronics. Nanopatterning the gate electrode or surface dielectric near 2D crystals provides a powerful strategy for realizing electrostatically tunable "remote" SLs with flexibility in lattice design. Here, we demonstrate the effectiveness of block copolymer (BCP)-templated dielectric nanopatterns for fabricating etch-free high-grade metal oxide SLs. Alumina (AlO