Strain-driven electronic band structure modulation of si nanowires

Nano Letters
Ki-Ha HongJai Kwang Shin

Abstract

One of the major challenges toward Si nanowire (SiNW) based photonic devices is controlling the electronic band structure of the Si nanowire to obtain a direct band gap. Here, we present a new strategy for controlling the electronic band structure of Si nanowires. Our method is attributed to the band structure modulation driven by uniaxial strain. We show that the band structure modulation with lattice strain is strongly dependent on the crystal orientation and diameter of SiNWs. In the case of [100] and [111] SiNWs, tensile strain enhances the direct band gap characteristic, whereas compressive strain attenuates it. [110] SiNWs have a different strain dependence in that both compressive and tensile strain make SiNWs exhibit an indirect band gap. We discuss the origin of this strain dependence based on the band features of bulk silicon and the wave functions of SiNWs. These results could be helpful for band structure engineering and analysis of SiNWs in nanoscale devices.

References

Nov 15, 1994·Physical Review. B, Condensed Matter·C Y YehA Zunger
Dec 15, 1994·Physical Review. B, Condensed Matter·P E Blöchl
Aug 24, 2001·Nature·M A GreenM Gal
Jul 13, 2004·Physical Review Letters·Xinyuan ZhaoM Y Chou
Oct 29, 2004·Nature·Vilson R AlmeidaMichal Lipson
May 12, 2005·Nano Letters·Volker SchmidtUlrich Gösele
Jun 10, 2005·Nano Letters·Zhaohui ZhongCharles M Lieber
Nov 10, 2005·Nano Letters·Abhishek Kumar SinghYoshiyuki Kawazoe
Jun 15, 2006·Nano Letters·Dunwei WangJames R Heath
Sep 14, 2006·Nano Letters·Alex R GuichardMark L Brongersma
Jan 11, 2007·Nano Letters·Michael NolanThomas Frauenheim

❮ Previous
Next ❯

Citations

Feb 4, 2012·ACS Applied Materials & Interfaces·Sung-Hoon LeeKinam Kim
Jun 15, 2012·Nano Letters·Yann-Michel NiquetChristophe Krzeminski
Aug 1, 2013·Nano Letters·Liaoxin SunRitesh Agarwal
Jun 4, 2014·Proceedings of the National Academy of Sciences of the United States of America·Nicholas A LanzilloSaroj K Nayak
Oct 3, 2014·Nanoscale Research Letters·Rui QinXiaoliang Deng
Feb 3, 2016·Nano Letters·Andreas HerklotzThomas Zac Ward
Oct 21, 2014·Nano Letters·María de la MataJordi Arbiol
Feb 5, 2015·Nano Letters·Karl WinklerAlois Lugstein
Jun 19, 2012·Scientific Reports·Daryoush ShiriM P Anantram
Feb 12, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Dayong TengChanghui Ye
Dec 9, 2014·Physical Chemistry Chemical Physics : PCCP·Jongseob Kim, Ki-Ha Hong
Jan 6, 2017·Reports on Progress in Physics·Walter M Weber, Thomas Mikolajick
May 8, 2009·Nanotechnology·David M KingAlan W Weimer
Oct 6, 2009·Nanotechnology·S KalemU Södervall
Sep 23, 2010·Advanced Materials·Zhipeng HuangUlrich Gösele
Apr 28, 2011·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Ren Qin ZhangQing Jiang
Apr 3, 2013·Optics Express·Jingnan CaiKazumi Wada
Mar 16, 2013·Physical Chemistry Chemical Physics : PCCP·Mahasin Alam SkKok Hwa Lim
Aug 25, 2020·Science Advances·Ajit K KatiyarJong-Hyun Ahn
Dec 22, 2020·Physical Chemistry Chemical Physics : PCCP·Atish GhoshPranab Sarkar
Sep 17, 2020·Science Advances·Ajit K KatiyarJong-Hyun Ahn
Aug 12, 2009·Nano Letters·V Lopez-RichardG E Marques
Apr 16, 2009·Nano Letters·Martin P PerssonStephan Roche
May 26, 2009·Nano Letters·Zhigang WuJeffrey C Grossman
Jan 3, 2013·The Journal of Physical Chemistry Letters·Jongseob KimKi-Ha Hong
Sep 18, 2021·Nature Materials·Dongtao LiuWei Zhang

❮ 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.