Transport characteristics of multi-terminal pristine and defective phosphorene systems

Nanotechnology
Nayyar Abbas ShahGuo-Ping Guo

Abstract

Atomic vacancies and nanopores act as local scattering centers and modify the transport properties of charge carriers in phosphorene nanoribbons (PNRs). We investigate the influence of such atomic defects on the electronic transport of multi-terminal PNR. We use the non-equilibrium Green's function approach within the tight-binding framework to calculate the transmission coefficient and the conductance. Terminals induce band mixing resulting in oscillations in the conductance. In the presence of atomic vacancies and nanopores the conductance between non-axial terminals exhibit constructive scattering, which is in contrast to mono-axial two-terminal systems where the conductance exhibits destructive scattering. This can be understood from the spatial local density of states of the transport modes in the system. Our results provide fundamental insights into the electronic transport in PNR-based multi-terminal systems and into the ability of atomic defects and nanopores through tuning the transport properties.

References

Oct 23, 2004·Science·K S NovoselovA A Firsov
Feb 1, 2011·Nature Nanotechnology·B RadisavljevicA Kis
Oct 24, 2007·Nanotechnology·Thushari Jayasekera, J W Mintmire
Mar 4, 2014·Nature Nanotechnology·Likai LiYuanbo Zhang
May 8, 2014·Nature Nanotechnology·Hugh O H Churchill, Pablo Jarillo-Herrero
Aug 12, 2014·Nano Letters·Saptarshi DasAndreas Roelofs
Oct 21, 2014·Scientific Reports·Yongqing CaiYong-Wei Zhang
Sep 9, 2016·Physical Chemistry Chemical Physics : PCCP·Caixia GuoYufang Liu
May 10, 2017·Nano Letters·Brian KiralyAlexander A Khajetoorians
Jun 10, 2017·The Journal of Physical Chemistry Letters·Chandra Chowdhury, Ayan Datta
Jun 24, 2017·Advanced Science·Sathish Chander DhanabalanHan Zhang
Jun 16, 2018·Chemical Society Reviews·Xingke CaiHui-Ming Cheng

❮ Previous
Next ❯

Citations

May 29, 2020·Nanotechnology·Xitong Liang, Dongfeng Xue

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.