Journal of Infrared and Millimeter Waves, Volume. 43, Issue 6, 744(2024)
Extracting the effective mass of fewer layers 2D h-BN nanosheets using the Fowler-Nordheim tunneling model
Figures & Tables(5)
Fig. 1. （a）Crystal structure of h-BN（dash lines represent the unit cell［2］）；energy bands of the MIM structure：（b）V=0；（c）V＜φ0；（d）V＞φ0
Fig. 2. （a）ln（I/V 2）-1/V curve and its fitting curve for dh-BN=7.54 nm，the inset shows the experimental I-V curve of one MIM structure；（b）comparison of theoretical and experimental values of FN tunneling with N representing the number of layers
Fig. 3. （a）Effective mass and（b）parameters A，B varies with h-BN thickness
Fig. 4. （a）Effect of fixed charge at the Gold/h-BN interface on FN tunneling；（b）effect of metals with different work function（WF）on FN tunneling when dh-BN =7.54 nm（The illustration is the JFN-V characteristic curve in logarithmic coordinates）.
Table 1. Calculated physical quantities corresponding to different h-BN thicknesses
View tableView in ArticleTable 1. Calculated physical quantities corresponding to different h-BN thicknesses
dh-BN layers m*/m Seff（cm2） A（A/V2） B （V/cm） 7.54 nm 22 0.184216 4.116×10-12 2.786×10-6 1.528×108 5.88 nm 17 0.281889 4.291×10-12 1.821×10-6 1.890×108 3.56 nm 10 0.311893 9.160×10-12 1.645×10-6 1.988×108 2.89 nm 8 0.364484 2.718×10-12 1.408×10-6 2.149×108 2.29 nm 6 0.36478 1.483×10-12 1.407×10-6 2.150×108 1.38 nm 4 0.366063 6.812×10-15 1.402×10-6 2.154×108
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Jia-Yi QIN, Man LUO, Tian-Tian CHENG, Yu-Xin MENG, Yuan-Ze ZU, Xin WANG, Chen-Hui YU. 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
Paper Information
Category: Infrared Physics, Materials and Devices
Received: Sep. 20, 2023
Accepted: --
Published Online: Dec. 13, 2024
The Author Email: Man LUO (luoman@ntu.edu.cn), Chen-Hui YU (ychyu@ntu.edu.cn)
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