liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Ultra-small photoluminescent silicon-carbide nanocrystals by atmospheric-pressure plasmas
Linköping University, Department of Physics, Chemistry and Biology, Plasma and Coating Physics. Linköping University, Faculty of Science & Engineering. University of Ulster, North Ireland.
University of Ulster, North Ireland.
University of Ulster, North Ireland.
Queensland University of Technology, Australia.
Show others and affiliations
2016 (English)In: Nanoscale, ISSN 2040-3364, E-ISSN 2040-3372, Vol. 8, no 39, 17141-17149 p.Article in journal (Refereed) Published
Abstract [en]

Highly size-controllable synthesis of free-standing perfectly crystalline silicon carbide nanocrystals has been achieved for the first time through a plasma-based bottom-up process. This low-cost, scalable, ligand-free atmospheric pressure technique allows fabrication of ultra-small (down to 1.5 nm) nanocrystals with very low level of surface contamination, leading to fundamental insights into optical properties of the nanocrystals. This is also confirmed by their exceptional photoluminescence emission yield enhanced by more than 5 times by reducing the nanocrystals sizes in the range of 1-5 nm, which is attributed to quantum confinement in ultra-small nanocrystals. This method is potentially scalable and readily extendable to a wide range of other classes of materials. Moreover, this ligand-free process can produce colloidal nanocrystals by direct deposition into liquid, onto biological materials or onto the substrate of choice to form nanocrystal films. Our simple but efficient approach based on non-equilibrium plasma environment is a response to the need of most efficient bottom-up processes in nanosynthesis and nanotechnology.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2016. Vol. 8, no 39, 17141-17149 p.
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:liu:diva-132700DOI: 10.1039/c6nr03702jISI: 000386074900011PubMedID: 27722686OAI: diva2:1048095

Funding Agencies|Royal Society International Exchange Scheme [IE120884]; Leverhulme International Network [IN-2012-136]; EPSRC [EP/K022237/1, EP/M024938/1]; EU-FP7 [606889]; University of Ulster Vice-Chancellor Studentship; EU [606889]; CSIRO; Australian Research Council; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology

Available from: 2016-11-20 Created: 2016-11-18 Last updated: 2016-12-07

Open Access in DiVA

fulltext(2555 kB)25 downloads
File information
File name FULLTEXT01.pdfFile size 2555 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Askari Ghotbabadi, Sadegh
By organisation
Plasma and Coating PhysicsFaculty of Science & Engineering
In the same journal
Atom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar
Total: 25 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 35 hits
ReferencesLink to record
Permanent link

Direct link