Electronic band gaps and exciton binding energies in monolayerMoxW1−xS2transition metal dichalcogenide alloys probed by scanning tunneling and optical spectroscopy
| Autor: | Tony F. Heinz, Albert F. Rigosi, Heather M. Hill, George W. Flynn, Kwang Taeg Rim |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Condensed matter physics Band gap Exciton Scanning tunneling spectroscopy Binding energy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Condensed Matter::Materials Science Condensed Matter::Superconductivity 0103 physical sciences Monolayer Quasiparticle 010306 general physics 0210 nano-technology Spectroscopy Quantum tunnelling |
| Zdroj: | Physical Review B. 94 |
| ISSN: | 2469-9969 2469-9950 |
| Popis: | Using optical absorption and scanning tunneling spectroscopy techniques, the authors investigate band-gap properties of single layers of transition metal dichalcogenide (TMDC) alloyed crystals (Mo${}_{x}$W${}_{1-x}$S${}_{2}$). They observe a significant modulation of the excitonic transitions, quasiparticle band gaps, and exciton binding energies. These findings may hold promise for fundamental studies of intralayer phenomena and for potential applications of TMDC alloys in electronic and optoelectronic devices. |
| Databáze: | OpenAIRE |
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