Band Alignment Engineering in Two-Dimensional Lateral Heterostructures

Journal of the American Chemical Society
Biyuan ZhengAnlian Pan

Abstract

Two-dimensional (2D) heterostructures have aroused widespread attentions due to the fascinating properties originating from the interfaces and the derived potential applications in modern electronics and optoelectronics. The interfacial band alignment engineering of 2D heterostructures would open up promising routes toward the flexible design and optimization of the electronic and optoelectronic properties. Herein, we report a one-step chemical vapor deposition method for the growth of band alignment continuously modulated WS2-WS2(1- x)Se2 x (0 < x ≤ 1) monolayer lateral heterostructures, with atomically sharp interfaces at the junction area. Local photoluminescence (PL) and Raman measurements demonstrate the position-dependent composition and band gap information on the as-grown nanosheets. Kelvin probe force microscopy (KPFM) investigations further confirm the tunable band alignments in the heterostructures, where a continuously decreased Fermi level difference between the core and the shell regions is observed with the x value varied from 1 to 0. The direct growth of high-quality atomic-level junctions with controllable band alignment marks an important step toward the potential applications of 2D semiconductors in integrate...Continue Reading

References

Feb 1, 2011·Nature Nanotechnology·B RadisavljevicA Kis
Feb 26, 2014·Journal of the American Chemical Society·Honglai LiXiangfeng Duan
Mar 29, 2014·Advanced Materials·Qingliang FengLiming Xie
Aug 26, 2014·Nature Materials·Chunming HuangXiaodong Xu
Sep 30, 2014·Nature Materials·Yongji GongPulickel M Ajayan
Sep 30, 2014·Nature Nanotechnology·Xidong DuanXiangfeng Duan
Feb 25, 2015·Nature Communications·Pasqual RiveraXiaodong Xu
Apr 15, 2015·Journal of the American Chemical Society·Honglai LiXiangfeng Duan
Feb 26, 2016·Science·Pasqual RiveraXiaodong Xu
Jun 13, 2017·Nature Nanotechnology·Dong LiZengxing Zhang
Jul 15, 2017·Advanced Materials·Sandhya SusarlaPulickel M Ajayan
Aug 5, 2017·ACS Nano·Jing ZhangJun Lou

❮ Previous
Next ❯

Citations

Oct 5, 2019·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Na LiHao-Li Zhang
Aug 23, 2019·Chemical Society Reviews·Liping ZhangMietek Jaroniec
May 13, 2020·Nature Materials·Long YuanLibai Huang
Oct 9, 2020·Research : a Science Partner Journal·Ziwei LiAnlian Pan
Nov 2, 2018·ACS Applied Materials & Interfaces·Yi ZhuYuerui Lu
Aug 28, 2020·Journal of the American Chemical Society·Juntong ZhuGuifu Zou
Jul 13, 2019·Journal of the American Chemical Society·Biyuan ZhengAnlian Pan
Oct 26, 2021·Advanced Science·Min ZhouWingkei Ho

❮ 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.