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  High-mobility band-like charge transport in a semiconducting two-dimensional metal–organic framework

Dong, R., Han, P., Arora, H., Ballabio, M., Karakus, M., Zhang, Z., et al. (2018). High-mobility band-like charge transport in a semiconducting two-dimensional metal–organic framework. Nature Materials, 1027-1032. doi:10.1038/s41563-018-0189-z.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-5A41-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-7340-4
Genre: Journal Article

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 Creators:
Dong, Renhao1, Author
Han, Peng1, Author
Arora, Himani1, Author
Ballabio, Marco1, Author
Karakus, Melike1, Author
Zhang, Zhe1, Author
Shekhar, Chandra2, Author              
Adler, Peter3, Author              
Petkov, Petko St.1, Author
Erbe, Artur1, Author
Mannsfeld, Stefan C. B.1, Author
Felser, Claudia4, Author              
Heine, Thomas1, Author
Bonn, Mischa1, Author
Feng, Xinliang1, Author
Cánovas, Enrique1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              
3Peter Adler, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863435              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Metal–organic frameworks (MOFs) are hybrid materials based on crystalline coordination polymers that consist of metal ions connected by organic ligands. In addition to the traditional applications in gas storage and separation or catalysis, the long-range crystalline order in MOFs, as well as the tunable coupling between the organic and inorganic constituents, has led to the recent development of electrically conductive MOFs as a new generation of electronic materials. However, to date, the nature of charge transport in the MOFs has remained elusive. Here we demonstrate, using high-frequency terahertz photoconductivity and Hall effect measurements, Drude-type band-like transport in a semiconducting, π–d conjugated porous Fe3(THT)2(NH4)3 (THT, 2,3,6,7,10,11-triphenylenehexathiol) two-dimensional MOF, with a room-temperature mobility up to ~ 220 cm2 V–1 s–1. The temperature-dependent conductivity reveals that this mobility represents a lower limit for the material, as mobility is limited by impurity scattering. These results illustrate the potential for high-mobility semiconducting MOFs as active materials in thin-film optoelectronic devices.

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Language(s): eng - English
 Dates: 2018-10-152018-10-15
 Publication Status: Published in print
 Pages: -
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 Rev. Method: -
 Identifiers: DOI: 10.1038/s41563-018-0189-z
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Title: Nature Materials
  Abbreviation : Nat. Mater.
Source Genre: Journal
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Publ. Info: London, UK : Nature Pub. Group
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1027 - 1032 Identifier: ISSN: 1476-1122
CoNE: https://pure.mpg.de/cone/journals/resource/111054835734000