Evidence map›Paper›PMID 31767991›Full record

ArticleNature chemistry2020

Slow charge transfer from pentacene triplet states at the Marcus optimum.

Natalie A Pace, Nadezhda V Korovina, Tyler T Clikeman, Sarah Holliday, Devin B Granger, Gerard M Carroll, Sanjini U Nanayakkara, John E Anthony, Iain McCulloch, Steven H Strauss and 4 more

Abstract read
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In one paragraph

Article in Nature chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Carrier Dynamics of Efficient Triplet Harvesting in AgBiSAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  5. Article
  6. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Natalie A PaceNational Renewable Energy Laboratory, Golden, CO, USA.ORCID http://orcid.org/0000-0001-6553-9363
Nadezhda V KorovinaNational Renewable Energy Laboratory, Golden, CO, USA.ORCID http://orcid.org/0000-0002-6465-7664
Tyler T ClikemanDepartment of Chemistry, Colorado State University, Fort Collins, CO, USA.
Sarah HollidayCenter for Plastic Electronics, Imperial College London, London, UK.
Devin B GrangerDepartment of Chemistry, University of Kentucky, Lexington, KY, USA.ORCID http://orcid.org/0000-0002-0839-9349
Gerard M CarrollNational Renewable Energy Laboratory, Golden, CO, USA.
Sanjini U NanayakkaraNational Renewable Energy Laboratory, Golden, CO, USA.
John E AnthonyDepartment of Chemistry, University of Kentucky, Lexington, KY, USA.ORCID http://orcid.org/0000-0002-8972-1888
Iain McCullochCenter for Plastic Electronics, Imperial College London, London, UK.
Steven H StraussDepartment of Chemistry, Colorado State University, Fort Collins, CO, USA.
Olga V BoltalinaDepartment of Chemistry, Colorado State University, Fort Collins, CO, USA.
Justin C JohnsonNational Renewable Energy Laboratory, Golden, CO, USA. Justin.Johnson@nrel.gov.ORCID http://orcid.org/0000-0002-8874-6637
Garry RumblesNational Renewable Energy Laboratory, Golden, CO, USA. Garry.Rumbles@nrel.gov.ORCID http://orcid.org/0000-0003-0776-1462
Obadiah G ReidNational Renewable Energy Laboratory, Golden, CO, USA. Obadiah.Reid@colorado.edu.ORCID http://orcid.org/0000-0003-0646-3981

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Singlet fission promises to surpass the Shockley-Queisser limit for single-junction solar cell efficiency through the production of two electron-hole pairs per incident photon. However, this promise has not been fulfilled because singlet fission produces two low-energy triplet excitons that have been unexpectedly difficult to dissociate into free charges. To understand this phenomenon, we study charge separation from triplet excitons in polycrystalline pentacene using an electrochemical series of 12 different guest electron-acceptor molecules with varied reduction potentials. We observe separate optima in the charge yield as a function of driving force for singlet and triplet excitons, including inverted regimes for the dissociation of both states. Molecular acceptors can thus provide a strategic advantage to singlet fission solar cells by suppressing singlet dissociation at optimal driving forces for triplet dissociation. However, even at the optimal driving force, the rate constant for charge transfer from the triplet state is surprisingly small, ~10

Identifiers

PMID31767991

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.