首页|Investigating the impact of metallic nanoparticles on performance of nanowire-based plasmonic photodetectors

Investigating the impact of metallic nanoparticles on performance of nanowire-based plasmonic photodetectors

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  • NETL
  • NSTL
  • Inst Engineering Technology-Iet
In this study, the authors have theoretically investigated the effects of metallic nanoparticles (NPs) on the performance of nanowire-based plasmonic photodetectors. For this goal, they propose a novel structure for plasmonic photodetectors in which the metallic NPs are deposited on a semiconductor nanowire sandwiched between two ohmic contacts. To calculate the eigenstates of the system, they have solved the Schrodinger equation for the nanowire in a nanostructure system with metallic NPs. Obtaining the system's eigenstates, the nanowires absorption coefficient, dielectric constant, and refractive index have been calculated. Also, the dependency of these parameters on the input wavelength has discussed. Besides, to find out the impact of metallic NPs, they have calculated the current of the system. They also have made a comparison of the system's responsivity in the simple condition (where there are no NPs effects) and the hybrid condition, in which the effects of NPs are also be considered. In fact, the effects of the NPs in the enhancement of the electrical field, and their role in the scattering of the field are the main fields of studies in this work.

absorption coefficientssemiconductor quantum wiresplasmonicsrefractive indexSchrodinger equationohmic contactsnanoparticlesphotodetectorspermittivitynanowire-based plasmonic photodetectorsmetallic nanoparticlessemiconductor nanowireohmic contactseigenstatesrefractive indexdielectric constantabsorption coefficientSchrodinger equation

Rashidi, Mohammad、Asgari, Asghar

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Univ Tabriz, Res Inst Appl Phys & Astron, Tabriz 5166614766, Iran|Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, GPO Box 4, Canberra, ACT 0200, Australia

Univ Tabriz, Res Inst Appl Phys & Astron, Tabriz 5166614766, Iran|Univ Western Australia, Sch Elect Elect & Comp Engn, Crawley, WA 6009, Australia

2020

10.1049/iet-opt.2019.0005

IET optoelectronics

IET optoelectronics

ISSN：1751-8768
年,卷(期)：2020.14(6)
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