| Title |
Chemical vapor deposition of layered two-dimensional MoSi2N4 materials
|
|---|---|
| Published in |
Science, August 2020
|
| DOI | 10.1126/science.abb7023 |
| Pubmed ID | |
| Authors | |
| Abstract |
Identifying two-dimensional layered materials in the monolayer limit has led to discoveries of numerous new phenomena and unusual properties. We introduced elemental silicon during chemical vapor deposition growth of nonlayered molybdenum nitride to passivate its surface, which enabled the growth of centimeter-scale monolayer films of MoSi2N4 This monolayer was built up by septuple atomic layers of N-Si-N-Mo-N-Si-N, which can be viewed as a MoN2 layer sandwiched between two Si-N bilayers. This material exhibited semiconducting behavior (bandgap ~1.94 electron volts), high strength (~66 gigapascals), and excellent ambient stability. Density functional theory calculations predict a large family of such monolayer structured two-dimensional layered materials, including semiconductors, metals, and magnetic half-metals. |
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X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 25% |
| Japan | 1 | 25% |
| Belgium | 1 | 25% |
| Unknown | 1 | 25% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 50% |
| Science communicators (journalists, bloggers, editors) | 1 | 25% |
| Scientists | 1 | 25% |
Mendeley demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 294 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 45 | 15% |
| Researcher | 32 | 11% |
| Student > Master | 23 | 8% |
| Student > Doctoral Student | 11 | 4% |
| Professor | 11 | 4% |
| Other | 32 | 11% |
| Unknown | 140 | 48% |
| Readers by discipline | Count | As % |
|---|---|---|
| Materials Science | 44 | 15% |
| Physics and Astronomy | 37 | 13% |
| Engineering | 21 | 7% |
| Chemistry | 17 | 6% |
| Chemical Engineering | 5 | 2% |
| Other | 18 | 6% |
| Unknown | 152 | 52% |