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Integrated digital inverters based on two-dimensional anisotropic ReS2 field-effect transistors
- Source :
- Nature Communications
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- Semiconducting two-dimensional transition metal dichalcogenides are emerging as top candidates for post-silicon electronics. While most of them exhibit isotropic behaviour, lowering the lattice symmetry could induce anisotropic properties, which are both scientifically interesting and potentially useful. Here we present atomically thin rhenium disulfide (ReS2) flakes with unique distorted 1T structure, which exhibit in-plane anisotropic properties. We fabricated monolayer and few-layer ReS2 field-effect transistors, which exhibit competitive performance with large current on/off ratios (∼107) and low subthreshold swings (100 mV per decade). The observed anisotropic ratio along two principle axes reaches 3.1, which is the highest among all known two-dimensional semiconducting materials. Furthermore, we successfully demonstrated an integrated digital inverter with good performance by utilizing two ReS2 anisotropic field-effect transistors, suggesting the promising implementation of large-scale two-dimensional logic circuits. Our results underscore the unique properties of two-dimensional semiconducting materials with low crystal symmetry for future electronic applications.<br />Many two-dimensional materials exhibit isotropic properties, but anisotropy can extend the functionality of future devices. Here, the authors fabricate field-effect transistors from single and few-layer rhenium disulfide and observe an anisotropic ratio of three to one along the two principle axes
- Subjects :
- Materials science
Applied physics
FOS: Physical sciences
General Physics and Astronomy
chemistry.chemical_element
Bioinformatics
Article
General Biochemistry, Genetics and Molecular Biology
law.invention
law
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Anisotropy
Condensed Matter - Materials Science
Multidisciplinary
Condensed Matter - Mesoscale and Nanoscale Physics
business.industry
Isotropy
Transistor
Disulfide bond
Materials Science (cond-mat.mtrl-sci)
General Chemistry
Rhenium
chemistry
Optoelectronics
Field-effect transistor
business
Subjects
Details
- ISSN :
- 20411723
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....de5f47ff869195be12a87e6808d35bad