One-dimensional Schottky nanodiode based on telescoping polyprismanes
Sergeyev D.
April 2021Techno-Press
Advances in Nano Research
2021#10Issue 4339 - 347 pp.
In the framework of the density functional theory combined with the method of non-equilibrium Green functions (DFT + NEGF), the electric transport properties of a one-dimensional nanodevice consisting of telescoping polyprismanes with various types of electrical conductivity were studied. Its transmission spectra, density of state, current-voltage characteristic, and differential conductivity are determined. It was shown that С[14,17], С[14,11], С[14,16], С[14,10] show a metallic nature, and polyprismanes С[14,5], С[14,4] possess semiconductor properties and has a band gap of 0.4 eV and 0.6 eV, respectively. It was found that, when metal С[14,11], С[14,10] and semiconductor С[14,5], С[14,4] polyprismanes are coaxially connected, a Schottky barrier is formed and a weak diode effect is observed, i.e., manifested valve (rectifying) property of telescoping polyprismanes. The enhancement of this effect occurs in the nanodevices С[14,17] – С[14,11] – С[14,5] and С[14,16] – С[14,10] – С[14,4], which have the properties of nanodiode and back nanodiode, respectively. The simulation results can be useful in creating promising active onedimensional elements of nanoelectronics
current-voltage characteristic , differential conductivity , electron transport , polyprisman , Schottky nanodiode
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Department of Physics, K. Zhubanov Aktobe Regional State University, 34A Moldagulova avenue, Aktobe, 030000, Kazakhstan
Department of Radio Electronics, T. Begeldinov Aktobe Avation Institute, 39 Moldagulova avenue, Aktobe, 030012, Kazakhstan
Department of Physics
Department of Radio Electronics
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