AI Article Synopsis
- Surface potential measurements on MoS2 flakes showed that the thickness of the flakes affects the Schottky barriers when interfaced with high work function metals.
- Schottky diode devices were created using mono- and multi-layer MoS2 channels with different metal contacts (Ti for ohmic, Pt for Schottky) and demonstrated n-type behavior along with rectifying performance.
- The device characteristics varied based on the thickness of the MoS2 layers and displayed enhanced sensitivity to NH3 and NO2 gases, influenced by the metal's work function and changes in Schottky barrier height.
Article Abstract
Surface potential measurement on atomically thin MoS2 flakes revealed the thickness dependence in Schottky barriers formed between high work function metal electrodes and MoS2 thin flakes. Schottky diode devices using mono- and multi-layer MoS2 channels were demonstrated by employing Ti and Pt contacts to form ohmic and Schottky junctions respectively. Characterization results indicated n-type behavior of the MoS2 thin flakes and the devices showed clear rectifying performance. We also observed the layer dependence in device characteristics and asymmetrically enhanced responses to NH3 and NO2 gases based on the metal work function and the Schottky barrier height change.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4438430 | PMC |
| http://dx.doi.org/10.1038/srep10440 | DOI Listing |
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