Sundaram, R. S. ; Engel, M. ; Lombardo, A. ; Krupke, R. ; Ferrari, A. C. ; Avouris, Ph. ; Steiner, M. (2013):
Electroluminescence in Single Layer MoS2.
In: Nano Letters, 13 (4), pp. 1416-1421. ACS Publications, ISSN 1530-6984,
[Article]
Abstract
We detect electroluminescence in single layer molybdenum disulfide (MoS2) field-effect transistors built on transparent glass substrates. By comparing the absorption, photoluminescence, and electroluminescence of the same MoS2 layer, we find that they all involve the same excited state at 1.8 eV. The electroluminescence has pronounced threshold behavior and is localized at the contacts. The results show that single layer MoS2, a direct band gap semiconductor, could be promising for novel optoelectronic devices, such as two-dimensional light detectors and emitters.
| Item Type: | Article |
|---|---|
| Erschienen: | 2013 |
| Creators: | Sundaram, R. S. ; Engel, M. ; Lombardo, A. ; Krupke, R. ; Ferrari, A. C. ; Avouris, Ph. ; Steiner, M. |
| Title: | Electroluminescence in Single Layer MoS2 |
| Language: | English |
| Abstract: | We detect electroluminescence in single layer molybdenum disulfide (MoS2) field-effect transistors built on transparent glass substrates. By comparing the absorption, photoluminescence, and electroluminescence of the same MoS2 layer, we find that they all involve the same excited state at 1.8 eV. The electroluminescence has pronounced threshold behavior and is localized at the contacts. The results show that single layer MoS2, a direct band gap semiconductor, could be promising for novel optoelectronic devices, such as two-dimensional light detectors and emitters. |
| Journal or Publication Title: | Nano Letters |
| Volume of the journal: | 13 |
| Issue Number: | 4 |
| Publisher: | ACS Publications |
| Uncontrolled Keywords: | MoS2, photoluminescence, electroluminescence, photocurrent microscopy, nano-optics |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 21 Oct 2013 12:35 |
| URL / URN: | http://dx.doi.org/10.1021/nl400516a |
| Identification Number: | doi:10.1021/nl400516a |
| PPN: | |
| Funders: | We acknowledge funding from EU grants NANOPOTS, GENIUS, EPSRC grants EP/G042357/1, EP/K01711X/1, EP/K017144/1, a Royal Society Wolfson Research Merit Award, and St. Edmund’s College, Cambridge. |
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