The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Red-to-Ultraviolet Emission Tuning of Two-Dimensional Gallium Sulfide/Selenide
Abstract
Graphene-like two-dimensional (2D) nanostructures have attracted significant attention because of their unique quantum confinement effect at the 2D limit. Multilayer nanosheets of GaS-GaSe alloy are found to have a band gap (Eg) of 2.0-2.5 eV that linearly tunes the emission in red-to-green. However, the epitaxial growth of monolayers produces a drastic increase in this Eg to 3.3-3.4 eV, which blue-shifts the emission to the UV region. First-principles calculations predict that the Eg of these GaS and GaSe monolayers should be 3.325 and 3.001 eV, respectively. As the number of layers is increased to three, both the direct/indirect Eg decrease significantly; the indirect Eg approaches that of the multilayers. Oxygen adsorption can cause the direct/indirect Eg of GaS to converge, resulting in monolayers with a strong emission. This wide Eg tuning over the visible-to-UV range could provide an insight for the realization of full-colored flexible and transparent light emitters and displays.
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Citations
Cites
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
Cited by
Promises and prospects of two-dimensional transistors
Liu, Y., Duan, X., Shin, H.-J., Park, S., Huang, Y., & Duan, X. (2021) · Nature · doi:10.1038/s41586-021-03339-z · Cited by 1,356
Two-dimensional transistors beyond graphene and TMDCs
Liu, Y., Duan, X., Huang, Y., & Duan, X. (2018) · Chemical Society Reviews · doi:10.1039/c8cs00318a · Cited by 474
Electronic Transport in Two-Dimensional Materials
Sangwan, V. K., & Hersam, M. C. (2018) · Annual Review of Physical Chemistry · doi:10.1146/annurev-physchem-050317-021353 · Cited by 336
Wafer-scale two-dimensional semiconductors from printed oxide skin of liquid metals
Carey, B. J., Ou, J. Z., Clark, R. M., Berean, K. J., Zavabeti, A., Chesman, A. S. R., Russo, S. P., Lau, D. W. M., Xu, Z.-Q., Bao, Q., et al. (2017) · Nature Communications · doi:10.1038/ncomms14482 · Cited by 292
Metadata
- Authors
- Jung, C. S., Shojaei, F., Park, K., Oh, J. Y., Im, H. S., Jang, D. M., Park, J., & Kang, H. S.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-09-17
- Volume
- 9
- Issue
- 10
- Pages
- 9585-9593
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W1444091019
- Cited by
- 225
- References
- 1
- FWCI
- 6.66
- Type
- journal article
- Language
- en
- Open access
- closed
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