Evidence map›Paper›PMID 23394574›Full record

ArticleACS nano2013

Chemical insight into the origin of red and blue photoluminescence arising from freestanding silicon nanocrystals.

Mita Dasog, Zhenyu Yang, Sarah Regli, Tonya M Atkins, Angelique Faramus, Mani P Singh, Elayaraja Muthuswamy, Susan M Kauzlarich, Richard D Tilley, Jonathan G C Veinot

Abstract read
In one paragraph

Article in ACS nano, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
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  9. "Switch-Off-On" Detection of FeNanomaterials (Basel, Switzerland) · 2022
    Article
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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

10 authors.

Mita DasogDepartment of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
Zhenyu Yang
Sarah Regli
Tonya M Atkins
Angelique Faramus
Mani P Singh
Elayaraja Muthuswamy
Susan M Kauzlarich
Richard D Tilley
Jonathan G C Veinot

Funding

Nontoxic Si Nanoprobes for Mulitple Biomarker ImagingR01EB008576 · NIBIB · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LOUIE, ANGELIQUE Y · 2008 to 2011
$1.3M
NIBIB NIH HHS EB008576-01NIBIB NIH HHS R01 EB008576
6 · The paper itself

Abstract

Silicon nanocrystals (Si NCs) are attractive functional materials. They are compatible with standard electronics and communications platforms and are biocompatible. Numerous methods have been developed to realize size-controlled Si NC synthesis. While these procedures produce Si NCs that appear identical, their optical responses can differ dramatically. Si NCs prepared using high-temperature methods routinely exhibit photoluminescence agreeing with the effective mass approximation (EMA), while those prepared via solution methods exhibit blue emission that is somewhat independent of particle size. Despite many proposals, a definitive explanation for this difference has been elusive for no less than a decade. This apparent dichotomy brings into question our understanding of Si NC properties and potentially limits the scope of their application. The present contribution takes a substantial step forward toward identifying the origin of the blue emission that is not expected based upon EMA predictions. It describes a detailed comparison of Si NCs obtained from three of the most widely cited procedures as well as the conversion of red-emitting Si NCs to blue emitters upon exposure to nitrogen-containing reagents. Analysis of the evidence is consistent with the hypothesis that the presence of trace nitrogen and oxygen even at the parts per million level in Si NCs gives rise to the blue emission.

Indexed as

AlkylationLuminescenceMicroscopy, Electron, TransmissionNanoparticlesNanotechnologyNitrogenOptical PhenomenaOxygenParticle SizeSiliconSpectroscopy, Fourier Transform InfraredSurface PropertiesNitrogenOxygenSilicon

Identifiers

PMID23394574
PMCPMC3631599

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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.