Evidence map›Paper›PMID 32483150›Full record

ArticleNature communications2020

Hot carriers perspective on the nature of traps in perovskites.

Marcello Righetto, Swee Sien Lim, David Giovanni, Jia Wei Melvin Lim, Qiannan Zhang, Sankaran Ramesh, Yong Kang Eugene Tay, Tze Chien Sum

Abstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Article
  2. Photophysics of Distinguished Defect States in BiNanophotonics (Berlin, Germany) · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. NIR Luminescence from Deep-Level Traps in CsPbBrThe journal of physical chemistry letters · 2025
    Article
  11. Mechanism of Hot-Carrier Photoluminescence in Sn-Based Perovskites.Advanced materials (Deerfield Beach, Fla.) · 2025
    Article
  12. Anomalous Polarons in Two-Dimensional Organometallic Perovskite Ferroelectric.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  13. Article
  14. Hot Carrier Trapping and It's Influence to the Carrier Diffusion in CsPbBrAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

8 authors.

Marcello Righetto *Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.ORCID http://orcid.org/0000-0001-5507-1445
Swee Sien Lim *Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
David Giovanni *Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.ORCID http://orcid.org/0000-0002-2764-5613
Jia Wei Melvin LimDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.ORCID http://orcid.org/0000-0001-6284-2340
Qiannan ZhangDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.ORCID http://orcid.org/0000-0002-8139-6160
Sankaran RameshDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.ORCID http://orcid.org/0000-0002-1557-3798
Yong Kang Eugene TayDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.ORCID http://orcid.org/0000-0002-8981-6131
Tze Chien SumDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore. Tzechien@ntu.edu.sg.ORCID http://orcid.org/0000-0003-4049-2719

Funding

Ministry of Education - Singapore (MOE) MOE2016-T2-1-034Ministry of Education - Singapore (MOE) MOE2017-T2-2-002Nanyang Technological University (NTU) JSPS-NTU Joint Research Project M4082176Nanyang Technological University (NTU) M4080514National Research Foundation Singapore (National Research Foundation-Prime Minister's office, Republic of Singapore) NRF-NRFI-2018-04
6 · The paper itself

Abstract

Amongst the many spectacular properties of hybrid lead halide perovskites, their defect tolerance is regarded as the key enabler for a spectrum of high-performance optoelectronic devices that propel perovskites to prominence. However, the plateauing efficiency enhancement of perovskite devices calls into question the extent of this defect tolerance in perovskite systems; an opportunity for perovskite nanocrystals to fill. Through optical spectroscopy and phenomenological modeling based on the Marcus theory of charge transfer, we uncover the detrimental effect of hot carriers trapping in methylammonium lead iodide and bromide nanocrystals. Higher excess energies induce faster carrier trapping rates, ascribed to interactions with shallow traps and ligands, turning these into potent defects. Passivating these traps with the introduction of phosphine oxide ligands can help mitigate hot carrier trapping. Importantly, our findings extend beyond photovoltaics and are relevant for low threshold lasers, light-emitting devices and multi-exciton generation devices.

Identifiers

PMID32483150
PMCPMC7264280

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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.