Photon-Induced Fermi Level Shifts and Energetic Modulation of Resonant States in Double-Barrier Resonant Tunneling Nanostructures
Abstract
This paper presents a theoretical analysis of quantum tunneling mechanisms under photon energy excitation within the framework of the Landauer–Büttiker formalism. The study considers the effects of photon absorption during resonant tunneling, leading to modifications of the Fermi–Dirac distribution and shifts in the chemical potentials. It is shown that photogeneration processes induced by optical excitation enhance the tunneling probability, cause an energy broadening of the transmission function, and result in a shift of the resonant peak in the current–voltage (I–V) characteristics. Based on the proposed model, a nonlinear dependence of quantum conductance on photon energy is established, and it is theoretically demonstrated that an increase in photon energy leads to enhanced tunneling conductance. The developed approach provides a deeper insight into optically excited quantum transport phenomena and establishes a new theoretical basis for the design of light-controlled transport systems in nanoelectronic devices.
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Copyright (c) 2026 Shokhjakhon O. Mamadaliev, Mukhammadjon G. Dadamirzaev, Munirakhon K. Uktamova, Sobirjon R. Boidedaev, Kudiratulla B. Umarov, Yusuf Usmanov
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