Evidence map›Paper›PMID 40529881›Full record

ArticleSmall science2025

Record-Breaking Far-Red Silicon Quantum Dots LEDs Enabled by Solvent Engineering: Toward Superseding Perovskite Quantum Dots.

Li Wang, Yuto Wada, Honoka Ueda, Temmaru Hirota, Kota Sumida, Yuito Oba, Ken-Ichi Saitow

Abstract read
In one paragraph

Article in Small science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. Article
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

7 authors.

Li WangDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0009-0008-8759-1398
Yuto WadaDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0009-0004-5563-1464
Honoka UedaDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0009-0001-2398-1783
Temmaru HirotaDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0000-0002-2642-515X
Kota SumidaDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0009-0009-0833-8093
Yuito ObaDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0009-0008-3884-5195
Ken-Ichi SaitowDepartment of Chemistry Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8526 Japan.ORCID https://orcid.org/0000-0003-2405-222X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most quantum dots (QDs) contain either toxic elements, which are health and environmental hazards, or costly precious metals. In contrast, as nanocrystals consisting mainly of an earth-abundant, light element, silicon QDs (SiQDs) have attracted attention as cost-effective biomedical, display, and solid-state lighting materials. However, unlike heavy-metal or perovskite QDs, SiQDs have not yet been used to create high-performance optoelectronics or long-lifetime light-emitting diodes (LEDs). Herein, the fabrication via solvent engineering of SiQD LEDs with record-breaking external quantum efficiency (16.5%) and lifetimes up to 733 times longer than the previous record is reported. Furthermore, the far-red (750 nm) luminance is comparable to that of state-of-the-art perovskite QD LEDs. Dispersing the SiQDs in octane yields particularly efficient LEDs owing to negligible SiQD aggregation, and Joule heating minimization realizes long-term stability (lifetime >200 h). Thus, solvent engineering is harnessed to break four QD LED performance records-for efficiency, luminance, voltage, and operational lifetime-using a more sustainable QD material, and the mechanisms underlying these performance improvements are unveiled. Thus, a new solvent-engineering approach for developing efficient, stable, and sustainable far-red SiQD LEDs, which are valuable light sources for applications including plant growth acceleration and photodynamic therapy, is highlighted.

Indexed as

far‐red luminanceslight‐emitting diodesnon‐toxic quantum dotssiliconssolvent engineerings

Identifiers

PMID40529881
PMCPMC12168609

What OpenQuestion holds

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Registered trials

None linked

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.