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Photo-induced halide redistribution in organic–inorganic perovskite films

Overview of attention for article published in Nature Communications, May 2016
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (98th percentile)
  • High Attention Score compared to outputs of the same age and source (94th percentile)

Mentioned by

news
24 news outlets
blogs
3 blogs
twitter
1 X user
facebook
3 Facebook pages

Citations

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792 Dimensions

Readers on

mendeley
837 Mendeley
Title
Photo-induced halide redistribution in organic–inorganic perovskite films
Published in
Nature Communications, May 2016
DOI 10.1038/ncomms11683
Pubmed ID
Authors

Dane W. deQuilettes, Wei Zhang, Victor M. Burlakov, Daniel J. Graham, Tomas Leijtens, Anna Osherov, Vladimir Bulović, Henry J. Snaith, David S. Ginger, Samuel D. Stranks

Abstract

Organic-inorganic perovskites such as CH3NH3PbI3 are promising materials for a variety of optoelectronic applications, with certified power conversion efficiencies in solar cells already exceeding 21%. Nevertheless, state-of-the-art films still contain performance-limiting non-radiative recombination sites and exhibit a range of complex dynamic phenomena under illumination that remain poorly understood. Here we use a unique combination of confocal photoluminescence (PL) microscopy and chemical imaging to correlate the local changes in photophysics with composition in CH3NH3PbI3 films under illumination. We demonstrate that the photo-induced 'brightening' of the perovskite PL can be attributed to an order-of-magnitude reduction in trap state density. By imaging the same regions with time-of-flight secondary-ion-mass spectrometry, we correlate this photobrightening with a net migration of iodine. Our work provides visual evidence for photo-induced halide migration in triiodide perovskites and reveals the complex interplay between charge carrier populations, electronic traps and mobile halides that collectively impact optoelectronic performance.

X Demographics

X Demographics

The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 837 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 <1%
Germany 2 <1%
Sweden 1 <1%
Netherlands 1 <1%
Unknown 830 99%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 270 32%
Researcher 136 16%
Student > Master 98 12%
Student > Bachelor 45 5%
Student > Doctoral Student 37 4%
Other 112 13%
Unknown 139 17%
Readers by discipline Count As %
Materials Science 200 24%
Physics and Astronomy 158 19%
Chemistry 135 16%
Engineering 84 10%
Energy 38 5%
Other 51 6%
Unknown 171 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 189. 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 14 November 2017.
All research outputs
#175,148
of 22,873,031 outputs
Outputs from Nature Communications
#2,541
of 47,109 outputs
Outputs of similar age
#3,837
of 334,086 outputs
Outputs of similar age from Nature Communications
#49
of 817 outputs
Altmetric has tracked 22,873,031 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 47,109 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.8. This one has done particularly well, scoring higher than 94% 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 334,086 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 98% of its contemporaries.
We're also able to compare this research output to 817 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 94% of its contemporaries.