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Attention Score in Context
| Title |
Endothermic singlet fission is hindered by excimer formation
|
|---|---|
| Published in |
Nature Chemistry, January 2018
|
| DOI | 10.1038/nchem.2926 |
| Pubmed ID | |
| Authors |
Cameron B. Dover, Joseph K. Gallaher, Laszlo Frazer, Patrick C. Tapping, Anthony J. Petty, Maxwell J. Crossley, John E. Anthony, Tak W. Kee, Timothy W. Schmidt |
| Abstract |
Singlet fission is a process whereby two triplet excitons can be produced from one photon, potentially increasing the efficiency of photovoltaic devices. Endothermic singlet fission is desired for a maximum energy-conversion efficiency, and such systems have been considered to form an excimer-like state with multiexcitonic character prior to the appearance of triplets. However, the role of the excimer as an intermediate has, until now, been unclear. Here we show, using 5,12-bis((triisopropylsilyl)ethynyl)tetracene in solution as a prototypical example, that, rather than acting as an intermediate, the excimer serves to trap excited states to the detriment of singlet-fission yield. We clearly demonstrate that singlet fission and its conjugate process, triplet-triplet annihilation, occur at a longer intermolecular distance than an excimer intermediate would impute. These results establish that an endothermic singlet-fission material must be designed to avoid excimer formation, thus allowing singlet fission to reach its full potential in enhancing photovoltaic energy conversion. |
X Demographics
The data shown below were collected from the profiles of 11 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Australia | 2 | 18% |
| Sweden | 1 | 9% |
| Unknown | 8 | 73% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 7 | 64% |
| Members of the public | 4 | 36% |
Mendeley readers
The data shown below were compiled from readership statistics for 208 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 208 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 69 | 33% |
| Researcher | 33 | 16% |
| Student > Bachelor | 22 | 11% |
| Student > Doctoral Student | 14 | 7% |
| Student > Master | 12 | 6% |
| Other | 18 | 9% |
| Unknown | 40 | 19% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 102 | 49% |
| Physics and Astronomy | 31 | 15% |
| Materials Science | 11 | 5% |
| Engineering | 7 | 3% |
| Agricultural and Biological Sciences | 2 | <1% |
| Other | 10 | 5% |
| Unknown | 45 | 22% |
Attention Score in Context
This research output has an Altmetric Attention Score of 70. 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 07 December 2020.
All research outputs
#596,908
of 25,052,270 outputs
Outputs from Nature Chemistry
#458
of 3,276 outputs
Outputs of similar age
#14,252
of 452,744 outputs
Outputs of similar age from Nature Chemistry
#10
of 45 outputs
Altmetric has tracked 25,052,270 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 97th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,276 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 35.6. This one has done well, scoring higher than 86% of its peers.
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 452,744 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 96% of its contemporaries.
We're also able to compare this research output to 45 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 80% of its contemporaries.