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Resonant Tunneling Spectroscopy to Probe the Giant Stark Effect in Atomically Thin Materials.
Zheng, Shoujun; Jo, Sanghyun; Kang, Kyungrok; Sun, Linfeng; Zhao, Mali; Watanabe, Kenji; Taniguchi, Takashi; Moon, Pilkyung; Myoung, Nojoon; Yang, Heejun.
Afiliación
  • Zheng S; Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea.
  • Jo S; Samsung Advanced Institute of Technology, Suwon, 16678, Korea.
  • Kang K; Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea.
  • Sun L; Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea.
  • Zhao M; Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea.
  • Watanabe K; National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan.
  • Taniguchi T; National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan.
  • Moon P; New York University Shanghai and NYU-ECNU Institute of Physics at NYU Shanghai, Shanghai, 200122, China.
  • Myoung N; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200122, China.
  • Yang H; Department of Physics Education, Chosun University, Gwangju, 61452, Korea.
Adv Mater ; 32(12): e1906942, 2020 Mar.
Article en En | MEDLINE | ID: mdl-32027062
Each atomic layer in van der Waals heterostructures possesses a distinct electronic band structure that can be manipulated for unique device operations. In the precise device architecture, the subtle but critical band splits by the giant Stark effect between atomic layers, varied by the momentum of electrons and external electric fields in device operation, has not yet been demonstrated or applied to design original devices with the full potential of atomically thin materials. Here, resonant tunneling spectroscopy based on the negligible quantum capacitance of 2D semiconductors in resonant tunneling transistors is reported. The bandgaps and sub-band structures of various channel materials could be demonstrated by the new conceptual spectroscopy at the device scale without debatable quasiparticle effects. Moreover, the band splits by the giant Stark effect in the channel materials could be probed, overcoming the limitations of conventional optical, photoemission, and tunneling spectroscopy. The resonant tunneling spectroscopy reveals essential and practical information for novel device applications.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2020 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2020 Tipo del documento: Article Pais de publicación: Alemania