Ordered Au nanocrystals on a substrate formed by light-induced rapid annealing

Nanoscale
Xi ChenMin Qiu

Abstract

Light-induced rapid annealing (LIRA) is a widely used method to modify the morphology and crystallinity of noble metal nanoparticles, and the nanoparticles generally evolve into nanospheres. It is rather challenging to form faceted Au nanocrystals on a substrate using LIRA. Here the formation of spatially ordered Au nanocrystals using a continuous wave infrared laser is reported, assisted by a metamaterial perfect absorber. Faceted Au nanocrystals in truncated-octahedral or multi-twinned geometries can be obtained. The evolution of morphology and crystallinity of the Au nanoparticles during laser annealing is also revealed, where the crystal grain growth and the surface melting are shown to play key roles in nanocrystal formation. The evolution of morphology also gives the freedom of tuning the absorption spectrum of the metamaterial absorber. These findings provide a novel way for tailoring the morphology and crystallinity of metallic nanoparticles and may pave the way to fabricate refined nano-devices in many potential applications for optics, electronics, catalysis, surface-chemistry and biology.

References

May 15, 1994·Physical Review. B, Condensed Matter· van Pinxteren HMJ W Frenken
Apr 9, 2001·Science·R A ShelbyS Schultz
Sep 24, 2005·Science·A HabenichtJ Boneberg
Oct 27, 2005·Journal of the American Chemical Society·Hui WangNaomi J Halas
May 27, 2006·Science·J B PendryD R Smith
Jul 21, 2006·The Journal of Physical Chemistry. B·Catherine J MurphyTan Li
Oct 21, 2006·Science·D SchurigD R Smith
Mar 14, 2007·Nano Letters·Anton PlechThomas Dekorsy
Jun 4, 2008·Physical Review Letters·N I LandyW J Padilla
May 1, 2010·Science·Nikolay I Zheludev
Jun 22, 2010·Nano Letters·Na LiuHarald Giessen
May 5, 2011·ACS Nano·Arseniy I KuznetsovBoris N Chichkov
Dec 3, 2008·Nanotechnology·Claudia Manuela MüllerRalph Spolenak
Sep 22, 2011·Optics Express·Jing WangMin Qiu
Nov 24, 2011·Chemical Society Reviews·Erik C DreadenMostafa A El-Sayed
Dec 12, 2012·Nature·Antoine MoreauDavid R Smith

❮ Previous
Next ❯

Citations

Dec 25, 2015·Chemical Communications : Chem Comm·Anaïs Pitto-BarryNicolas P E Barry
Jul 6, 2017·ACS Applied Materials & Interfaces·Seong Ho Ryu, Dong Ki Yoon
Apr 6, 2019·Nanotechnology·C JürgensenP Romero-Gomez

❮ 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.