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Quantitative Determination of the Band Gap of WS2 with Ambipolar Ionic Liquid-Gated Transistors
Open accessAbstract
We realized ambipolar field-effect transistors by coupling exfoliated thin flakes of tungsten disulfide (WS(2)) with an ionic liquid dielectric. The devices show ideal electrical characteristics, including very steep subthreshold slopes for both electrons and holes and extremely low OFF-state currents. Thanks to these ideal characteristics, we determine with high precision the size of the band gap of WS(2) directly from the gate-voltage dependence of the source-drain current. Our results demonstrate how a careful use of ionic liquid dielectrics offers a powerful strategy to study quantitatively the electronic properties of nanoscale materials.
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Geim, A. K., & Novoselov, K. S. (2007) · Nature Materials · doi:10.1038/nmat1849 · Cited by 39,979
The electronic properties of graphene
Castro Neto, A. H., Guinea, F., Peres, N. M. R., Novoselov, K. S., & Geim, A. K. (2009) · Reviews of Modern Physics · doi:10.1103/revmodphys.81.109 · Cited by 24,803
Two-dimensional atomic crystals
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Morosan, E., Zandbergen, H. W., Dennis, B. S., Bos, J. W. G., Onose, Y., Klimczuk, T., Ramirez, A. P., Ong, N. P., & Cava, R. J. (2006) · Nature Physics · doi:10.1038/nphys360 · Cited by 991
Cited by
Emerging Device Applications for Semiconducting Two-Dimensional Transition Metal Dichalcogenides
Jariwala, D., Sangwan, V. K., Lauhon, L. J., Marks, T. J., & Hersam, M. C. (2014) · ACS Nano · doi:10.1021/nn500064s · Cited by 2,753
Electrically Switchable Chiral Light-Emitting Transistor
Zhang, Y. J., Oka, T., Suzuki, R., Ye, J. T., & Iwasa, Y. (2014) · Science · doi:10.1126/science.1251329 · Cited by 773
Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices
Pang, J., Bachmatiuk, A., Yin, Y., Trzebicka, B., Zhao, L., Fu, L., Mendes, R. G., Gemming, T., Liu, Z., & Rummeli, M. H. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201702093 · Cited by 518
Schmidt, H., Giustiniano, F., & Eda, G. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00275c · Cited by 466
Rational Design of Better Hydrogen Evolution Electrocatalysts for Water Splitting: A Review
Liu, F., Shi, C., Guo, X., He, Z., Pan, L., Huang, Z., Zhang, X., & Zou, J. (2022) · Advanced Science · doi:10.1002/advs.202200307 · Cited by 455
Metadata
- Authors
- Braga, D., Gutiérrez Lezama, I., Berger, H., & Morpurgo, A. F.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-09-21
- Volume
- 12
- Issue
- 10
- Pages
- 5218-5223
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2076422252
- Cited by
- 519
- References
- 4
- FWCI
- 18.24
- Type
- journal article
- Language
- en
- Open access
- green
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