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

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Two-Dimensional Hydroxyl-Functionalized and Carbon-Deficient Scandium Carbide, ScCxOH, a Direct Band Gap Semiconductor
Chinese Acad Sci, Peoples R China.
Chinese Acad Sci, Peoples R China.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-1785-0864
Show others and affiliations
2019 (English)In: ACS Nano, ISSN 1936-0851, E-ISSN 1936-086X, Vol. 13, no 2, p. 1195-1203Article in journal (Refereed) Published
Abstract [en]

Two-dimensional (2D) materials have attracted intense attention in nanoscience and nanotechnology due to their outstanding properties. Among these materials, the emerging family of 2D transition metal carbides, carbonitrides, and nitrides (referred to as MXenes) stands out because of the vast available chemical space for tuning materials chemistry and surface termination, offering opportunities for property tailoring. Specifically, semiconducting properties are needed to enable utilization in optoelectronics, but direct band gaps are experimentally challenging to achieve in these 2D carbides. Here, we demonstrate the fabrication of 2D hydroxyl-functionalized and carbon-deficient scandium carbide, namely, ScCxOH, by selective etching of a layered parent ScAI(3)C(3) compound. The 2D configuration is determined as a direct band gap semiconductor, with an experimentally measured band gap approximated at 2.5 eV. Furthermore, this ScCxOH-based device exhibits excellent photoresponse in the ultraviolet-visible light region (responsivity of 0.125 A/W at 360 nm/10 V, and quantum efficiency of 43%). Thus, this 2D ScCxOH direct band gap semiconductor may find applications in visible light detectors, photocatalytic chemistry, and optoelectronic devices.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 13, no 2, p. 1195-1203
Keywords [en]
MXene; two-dimensional material; selective etching; DFT calculation; electronic properties; photodetector
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-155579DOI: 10.1021/acsnano.8b06279ISI: 000460199400024PubMedID: 30703319OAI: oai:DiVA.org:liu-155579DiVA, id: diva2:1297921
Note

Funding Agencies|National Key Research and Development Program of China [2016YFB0700100]; National Natural Science Foundation of China [11604346, 21671195, 21805295, 21875271, 51502310, 21577144, 91426304]; Key Research Program of Frontier Sciences, CAS [QYZDB-SSW-JSC037]; K.C. Wong Education Foundation [rczx0800]; CAS Interdisciplinary Innovation Team; Research Infrastructure Fellow Program [RIF 14-0074]; Swedish Research Council [2016-04412]; key technology of nuclear energy

Available from: 2019-03-21 Created: 2019-03-21 Last updated: 2019-03-21

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Yildizhan Özyar, MelikeEklund, PerPersson, Per O A
By organisation
Thin Film PhysicsFaculty of Science & Engineering
In the same journal
ACS Nano
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 27 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf