Direct imaging of the atomic structure inside a nanowire by scanning tunnelling microscopy

Nature Materials
A MikkelsenE Lundgren

Abstract

Semiconductor nanowires are expected to be important components in future nano-electronics and photonics. Already a wide range of applications has been realized, such as high-performance field-effect transistors, bio/chemical sensors, diode logics and single-nanowire lasers. As nanowires have small cross-sections and large surface-to-bulk ratios, their properties can be significantly influenced by individual atomic-scale structural features, and they can have properties or even atomic arrangements with no bulk counterparts. Hence, experimental methods capable of directly addressing the atomic-scale structure of nanowires are highly desirable. One such method is scanning tunnelling microscopy (STM), which, by direct imaging of the atomic and electronic structure of surfaces has revolutionized the perception of nanoscale objects and low-dimensional systems. Here we demonstrate how combining STM with an embedding scheme allows us to image the interior of semiconductor nanowires with atomic resolution. Defect structures such as planar twin segments and single-atom impurities are imaged inside a GaAs nanowire. Further, we image an intriguing GaAs nanowire that is separated into two distinct nanocrystallites along the growth directio...Continue Reading

References

Mar 8, 1993·Physical Review Letters·P EbertK Urban
Aug 30, 2001·Scientific American·C M Lieber
Jun 20, 1997·Chemical Reviews·Edward T. Yu
Mar 22, 2002·Nature·P GambardellaC Carbone
Nov 8, 2002·Nature·Lincoln J LauhonCharles M Lieber
Jan 17, 2003·Nature·Xiangfeng DuanCharles M Lieber
Sep 6, 2003·Nature Materials·Jiankuai DiaoMartin L Dunn

❮ Previous
Next ❯

Citations

Aug 15, 2012·Nano Letters·Waldomiro PaschoalHåkan Pettersson
Jun 20, 2006·Nature Materials·Jonas JohanssonWerner Seifert
Feb 4, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·J BolinssonA Mikkelsen
Sep 9, 2011·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Martin EkL Reine Wallenberg
Jun 20, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Friedhelm Bechstedt, Abderrezak Belabbes
Feb 6, 2020·Nature Communications·Cloudy CarnegieJeremy J Baumberg
Aug 29, 2007·Nano Letters·Lassana OuattaraEdvin Lundgren
Apr 16, 2009·Nano Letters·Benjamin W JacobsVirginia M Ayres
Oct 15, 2008·Nano Letters·Emelie HilnerAnders Mikkelsen
Jun 1, 2010·Nano Letters·Rienk E AlgraErik P A M Bakkers
May 13, 2008·Nano Letters·Gilles PatriarcheGeorge E Cirlin
Feb 9, 2006·Nano Letters·Daniel E PereaLincoln J Lauhon

❮ 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.