QUANTUM MODELING OF LIGHT ABSORPTION IN GRAPHENE BASED PHOTO-TRANSISTORS

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FAEZINIA HAMID; ZAVVARI MAHDI

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Journal Paper

Paper Information

Journal: JOURNAL OF OPTOELECTRONICAL NANOSTRUCTURES Year:2016 | Volume:1 | Issue:4 Page(s): 9-20

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Information Journal Paper

Title

QUANTUM MODELING OF LIGHT ABSORPTION IN GRAPHENE BASED PHOTO-TRANSISTORS

Author(s)

FAEZINIA HAMID | ZAVVARI MAHDI | Issue Writer Certificate

Keywords

NON-EQUILIBRIUM GREEN’S FUNCTION

GRAPHENE NANO-RIBBON

PHOTO-TRANSISTOR

SELFENERGY

Abstract

Graphene based optical devices are highly recommended and interested for integrated optical circuits. As a main component of an optical link, a photodetector based on graphene nano-ribbons is proposed and studied. A quantum transport model is presented for simulation of a graphene nano-ribbon (GNR) -based photo-transistor based on non-equilibrium Green’s function method. In the proposed model a self-energy matrix is introduced which takes the effect of optical absorption in GNR channel into account. The self-energy matrix is treated as a scattering matrix which leads to creation of carriers. The transition matrix element is calculated for optical absorption in graphene channel and is used to obtain the optical interaction self-energy. The resulting self-energy matrix is added to retarded Green’s function and is used in transport equations for calculation of current flow in the photo-transistor. By considering the effect of optical radiation, the dark and photocurrent of detector are calculated and results are used for calculation of responsivity.

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APA: Copy

FAEZINIA, HAMID, & ZAVVARI, MAHDI. (2016). QUANTUM MODELING OF LIGHT ABSORPTION IN GRAPHENE BASED PHOTO-TRANSISTORS. JOURNAL OF OPTOELECTRONICAL NANOSTRUCTURES, 1(4), 9-20. SID. https://sid.ir/paper/349313/en

Vancouver: Copy

FAEZINIA HAMID, ZAVVARI MAHDI. QUANTUM MODELING OF LIGHT ABSORPTION IN GRAPHENE BASED PHOTO-TRANSISTORS. JOURNAL OF OPTOELECTRONICAL NANOSTRUCTURES[Internet]. 2016;1(4):9-20. Available from: https://sid.ir/paper/349313/en

IEEE: Copy

HAMID FAEZINIA, and MAHDI ZAVVARI, “QUANTUM MODELING OF LIGHT ABSORPTION IN GRAPHENE BASED PHOTO-TRANSISTORS,” JOURNAL OF OPTOELECTRONICAL NANOSTRUCTURES, vol. 1, no. 4, pp. 9–20, 2016, [Online]. Available: https://sid.ir/paper/349313/en

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