Photoluminescence properties of InAs nanowires grown on GaAs and Si substrates

Nanotechnology
M H SunC Chang-Hasnain

Abstract

We report the first photoluminescence (PL) characterization of InAs nanowires (NWs). The InAs NWs were grown on GaAs(111) B and Si(111) substrates using the Au-assisted molecular beam epitaxy (MBE) growth technique or metal-organic chemical vapor deposition (MOCVD). We compared the PL response of four samples grown under different conditions using MBE or MOCVD. High-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) patterns were utilized to determine the crystal structure and growth directions of the NWs to relate PL features to NW structural parameters. We observed mainly three PL peaks which were below, near and above InAs bandgaps, respectively. Temperature and excitation intensity dependence PL measurements were also performed to help elucidate the origins of the PL peaks of NWs. Of particular interest was a band-edge emission peak that was blue-shifted due to quantization effects of the InAs NWs, as confirmed by our calculation.

References

Apr 29, 1991·Physical Review Letters·M NoguchiT Ikoma
May 6, 1996·Physical Review Letters·L Ö OlssonU O Karlsson
Feb 28, 2007·Nano Letters·Alan H ChinMahendra K Sunkara
Oct 13, 2007·Physical Review Letters·Frank GlasGilles Patriarche
Jan 16, 2009·Nano Letters·Alexandra C FordAli Javey
Jan 20, 2009·Small·Xin ZhangChennupati Jagadish
May 13, 2009·Nanotechnology·A I PerssonH Linke
Jul 25, 2007·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Z ZanolliL Samuelson

❮ Previous
Next ❯

Citations

Nov 28, 2013·Nano Letters·Julian TreuGregor Koblmüller
Jul 29, 2016·Nano Letters·Michele B RotaMario Capizzi
Nov 30, 2019·Scientific Reports·E A Anyebe, M Kesaria
Sep 30, 2017·ACS Nano·Johan Valentin KnutssonAnders Mikkelsen
Oct 23, 2019·Nano Letters·Hisashi SumikuraMasaya Notomi
May 22, 2020·ACS Nano·Vladislav KhayrudinovTuomas Haggren

❮ 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.