Sökning: id:"swepub:oai:DiVA.org:liu-154975" >
Electronic and opti...
Electronic and optical characterization of 2D Ti2C and Nb2C (MXene) thin films
-
- Halim, Joseph (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Persson, Ingemar (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Moon, Eun Ju (författare)
- SUNY Buffalo, NY 14260 USA
-
visa fler...
-
- Kuhne, Philipp (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
-
- Darakchieva, Vanya (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
-
- Persson, Per O A (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Eklund, Per (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Rosén, Johanna (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Barsoum, Michel W. (författare)
- Drexel Univ, PA 19104 USA
-
visa färre...
-
(creator_code:org_t)
- IOP PUBLISHING LTD, 2019
- 2019
- Engelska.
-
Ingår i: Journal of Physics. - : IOP PUBLISHING LTD. - 0953-8984 .- 1361-648X. ; 31:16
- Relaterad länk:
-
https://liu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Two-dimensional (2D) transition metal carbides and/or nitrides (MXenes) are a new class of 2D materials, with extensive opportunities for property tailoring due to the numerous possibilities for varying chemistries and surface terminations. Here, Ti2AlC and Nb2AlC MAX phase epitaxial thin films were deposited on sapphire substrates by physical vapor deposition. The films were then etched in LiF/HCl solutions, yielding Li-intercalated, 2D Ti2CTz and Nb2CTz films, whose terminations, transport and optical properties were characterized. The former exhibits metallic conductivity, with weak localization below 50 K. In contrast, the Nb-based film exhibits an increase in resistivity with decreasing temperature from RT down to 40K consistent with variable range hopping transport. The optical properties of both films were determined from spectroscopic ellipsometry in the 0.75 to 3.50 eV range. The results for Ti2Clz films confirm the metallic behavior. In contrast, no evidence of metallic behavior is observed for the Nb2CT(z) film. The present work therefore demonstrates that one fruitful approach to alter the electronic and optical properties of MXenes is to change the nature of the transition metal.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- MXene; thin films; transport properties; transition metal carbide
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas