Charge conduction and relaxation in MoS2 nanoflakes synthesized by simple solid state reaction

We present the synthesis of crystalline MoS2 nanoflakes through self-exfoliation in a simple solid state reaction at temperature ∼650 °C. X-ray diffraction and Transmission Electron Microscope analysis indicate the formation of pure hexagonal phase MoS2 nanoflakes. Impedance and modulus plane plots...

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Published inJournal of applied physics Vol. 114; no. 4
Main Authors Ahmad, Mushtaq, Rafiq, M. A., Imran, Z., Rasool, Kamran, Shahid, R. N., Javed, Yasir, Hasan, M. M.
Format Journal Article
LanguageEnglish
Published 28.07.2013
Subjects
Charge
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Summary:We present the synthesis of crystalline MoS2 nanoflakes through self-exfoliation in a simple solid state reaction at temperature ∼650 °C. X-ray diffraction and Transmission Electron Microscope analysis indicate the formation of pure hexagonal phase MoS2 nanoflakes. Impedance and modulus plane plots from 20 Hz to 2 MHz show two relaxations associated with bulk and interface phases at temperatures from 180 K to 280 K. The conductivity obeys Mott's 2D variable-range hopping phenomenon and density of localized states ∼3.42 × 1019 eV-1 cm−3 is extracted.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4816570