Spatiotemporal dynamics of excitons in monolayer and bulk WS
Nanoscale, ISSN: 2040-3372, Vol: 7, Issue: 21, Page: 9526-9531
2015
- 71Citations
- 84Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Citations71
- Citation Indexes71
- 71
- CrossRef66
- Captures84
- Readers84
- 84
Article Description
Spatiotemporal dynamics of excitons in monolayer and bulk WS at room temperature is studied by transient absorption microscopy in the reflection geometry. Excitons are formed from photocarriers injected by a tightly focused 390 nm pump pulse, and monitored by detecting different reflection of a time-delayed and spatially scanned 620 nm probe pulse. We obtain exciton lifetimes of 22 ± 1 and 110 ± 10 ps in monolayer and bulk WS, respectively. Both lifetimes are independent of the exciton density, showing the absence of multi-exciton recombination processes. Exciton diffusion coefficients of 60 ± 20 and 3.5 ± 0.5 cm s are obtained in monolayer and bulk samples, respectively. These results provide a foundation for understanding excitons in this new material and its optoelectronic applications.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84930063921&origin=inward; http://dx.doi.org/10.1039/c5nr00188a; http://www.ncbi.nlm.nih.gov/pubmed/25947347; http://xlink.rsc.org/?DOI=C5NR00188A; http://pubs.rsc.org/en/content/articlepdf/2015/NR/C5NR00188A; https://xlink.rsc.org/?DOI=C5NR00188A; https://dx.doi.org/10.1039/c5nr00188a; https://pubs.rsc.org/en/content/articlelanding/2015/nr/c5nr00188a
Royal Society of Chemistry (RSC)
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