Evidence map›Paper›PMID 34127659›Full record

ArticleNature communications2021

Laser-excited elastic guided waves reveal the complex mechanics of nanoporous silicon.

Marc Thelen, Nicolas Bochud, Manuel Brinker, Claire Prada, Patrick Huber

Erratum issuedAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

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  9. Surface tension of cavitation bubbles.Proceedings of the National Academy of Sciences of the United States of America · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Marc Thelen *Hamburg University of Technology, Institute of Materials and X-Ray Physics, Hamburg, Germany.ORCID http://orcid.org/0000-0002-4931-4436
Nicolas Bochud *MSME, CNRS UMR 8208, Univ Paris Est Creteil, Univ Gustave Eiffel, Creteil, France.
Manuel BrinkerHamburg University of Technology, Institute of Materials and X-Ray Physics, Hamburg, Germany.ORCID http://orcid.org/0000-0002-1729-459X
Claire PradaInstitut Langevin, ESPCI Paris, Université Paris Sciences et Lettres, CNRS, Paris, France.
Patrick HuberHamburg University of Technology, Institute of Materials and X-Ray Physics, Hamburg, Germany. patrick.huber@tuhh.de.ORCID http://orcid.org/0000-0002-2126-9100

Funding

Agence Nationale de la Recherche (French National Research Agency) ANR-10-IDEX-0001-02 PSLAgence Nationale de la Recherche (French National Research Agency) ANR-10-LABX-24Deutsche Forschungsgemeinschaft (German Research Foundation) 192346071
6 · The paper itself

Abstract

Nanoporosity in silicon leads to completely new functionalities of this mainstream semiconductor. A difficult to assess mechanics has however significantly limited its application in fields ranging from nanofluidics and biosensorics to drug delivery, energy storage and photonics. Here, we present a study on laser-excited elastic guided waves detected contactless and non-destructively in dry and liquid-infused single-crystalline porous silicon. These experiments reveal that the self-organised formation of 100 billions of parallel nanopores per square centimetre cross section results in a nearly isotropic elasticity perpendicular to the pore axes and an 80% effective stiffness reduction, altogether leading to significant deviations from the cubic anisotropy observed in bulk silicon. Our thorough assessment of the wafer-scale mechanics of nanoporous silicon provides the base for predictive applications in robust on-chip devices and evidences that recent breakthroughs in laser ultrasonics open up entirely new frontiers for in-situ, non-destructive mechanical characterisation of dry and liquid-functionalised porous materials.

Identifiers

PMID34127659
PMCPMC8203614

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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.