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Home > Archive>Volume 43, Issue 6, 2024 >744-748. DOI:10.11972/j.issn.1001-9014.2024.06.003
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Extracting the effective mass of fewer layers 2D h-BN nanosheets using the Fowler-Nordheim tunneling model
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Affiliation:

1.Jiangsu Key Laboratory of ASIC Design， School of Information Science and Technology， Nantong University， Nantong 226019， China;2.State Key Laboratory of Infrared Physics， Shanghai Institute of Technical Physics， Chinese Academy of Sciences， Shanghai 200083， China

Clc Number:

TN204;TN215

Fund Project:

Supported by the National Natural Science Foundation of China （62074085， 62104118）

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    Abstract:

    Hexagonal boron nitride （h-BN） is found to have widespread application， owing to its outstanding properties， including gate dielectrics， passivation layers， and tunneling layers. The current studies on the fundamental physical properties of these ultrathin h-BN films and the electron tunneling effect among them are inadequate. In this work， the effective mass in h-BN was successfully determined through a combined approach of experimental and theoretical research methods by fitting the current-voltage curves of metal/insulator/metal structures. It was observed that within a range of 4-22 layers， the effective mass of h-BN exhibits a monotonic decrease with an increase in the number of layers. The physical parameters of the Fowler-Nordheim tunneling model in the context of electron tunneling in h-BN are precisely ascertained by utilizing the extracted effective mass. Additionally， the impact of fixed charges at the metal/h-BN interface and various metal electrode types on Fowler-Nordheim tunneling within this structure is investigated utilizing this physical parameter in Sentaurus TCAD software. This work is informative and instructive in promoting applications in the fields of h-BN related infrared physics and technology.

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QIN Jia-Yi, LUO Man, CHENG Tian-Tian, MENG Yu-Xin, ZU Yuan-Ze, WANG Xin, YU Chen-Hui. Extracting the effective mass of fewer layers 2D h-BN nanosheets using the Fowler-Nordheim tunneling model[J]. Journal of Infrared and Millimeter Waves,2024,43(6):744~748

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History
  • Received:September 20,2023
  • Revised:November 08,2024
  • Adopted:October 10,2023
  • Online: November 06,2024
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