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Acoustically-Driven Trion and Exciton Modulation in Piezoelectric Two-Dimensional MoS2

Overview of attention for article published in Nano Letters, January 2016
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Title
Acoustically-Driven Trion and Exciton Modulation in Piezoelectric Two-Dimensional MoS2
Published in
Nano Letters, January 2016
DOI 10.1021/acs.nanolett.5b02826
Pubmed ID
Authors

Amgad R. Rezk, Benjamin Carey, Adam F. Chrimes, Desmond W. M. Lau, Brant C. Gibson, Changxi Zheng, Michael S. Fuhrer, Leslie Y. Yeo, Kourosh Kalantar-zadeh

Abstract

By exploiting the very recent discovery of the piezoelectricity in odd-numbered layers of two-dimensional molybdenum disulfide (MoS2), we show the possibility of reversibly tuning the photoluminescence of single and odd-numbered multilayered MoS2 using high frequency sound wave coupling. We observe a strong quenching in the photoluminescence associated with the dissociation and spatial separation of electrons-holes quasi-particles at low applied acoustic powers. At the same applied powers, we note a relative preference for ionization of trions into excitons. This work also constitutes the first visual presentation of the surface displacement in one-layered MoS2 using laser Doppler vibrometry. Such observations are associated with the acoustically generated electric field arising from the piezoelectric nature of MoS2 for odd-numbered layers. At larger applied powers, the thermal effect dominates the behavior of the two-dimensional flakes. Altogether, the work reveals several key fundamentals governing acousto-optic properties of odd-layered MoS2 that can be implemented in future optical and electronic systems.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 135 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 1%
Germany 1 <1%
Unknown 132 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 50 37%
Researcher 25 19%
Student > Master 11 8%
Student > Doctoral Student 6 4%
Professor 6 4%
Other 15 11%
Unknown 22 16%
Readers by discipline Count As %
Physics and Astronomy 35 26%
Materials Science 34 25%
Engineering 24 18%
Chemistry 6 4%
Energy 2 1%
Other 9 7%
Unknown 25 19%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 January 2016.
All research outputs
#17,780,575
of 22,837,982 outputs
Outputs from Nano Letters
#10,243
of 12,392 outputs
Outputs of similar age
#267,571
of 393,726 outputs
Outputs of similar age from Nano Letters
#188
of 227 outputs
Altmetric has tracked 22,837,982 research outputs across all sources so far. This one is in the 19th percentile – i.e., 19% of other outputs scored the same or lower than it.
So far Altmetric has tracked 12,392 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.9. This one is in the 14th percentile – i.e., 14% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 393,726 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 27th percentile – i.e., 27% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 227 others from the same source and published within six weeks on either side of this one. This one is in the 14th percentile – i.e., 14% of its contemporaries scored the same or lower than it.