Evidence map›Paper›PMID 33888755›Full record

ArticleScientific reports2021

Systematic THz study of the substrate effect in limiting the mobility of graphene.

Samantha Scarfe, Wei Cui, Adina Luican-Mayer, Jean-Michel Ménard

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

4 authors.

Samantha ScarfeDepartment of Physics, University of Ottawa, Ottawa, Canada.
Wei CuiDepartment of Physics, University of Ottawa, Ottawa, Canada.
Adina Luican-MayerDepartment of Physics, University of Ottawa, Ottawa, Canada. luican-mayer@uottawa.ca.
Jean-Michel MénardDepartment of Physics, University of Ottawa, Ottawa, Canada. jean-michel.menard@uottawa.ca.

Funding

Canada Foundation for Innovation Project number 35269Department of National Defence (DND) - Innovation for Defence Excellence and Security (IDEaS) IDEaS-1-1A-CP-0122National Sciences and Engineering Research Council of Canada RGPIN-2016-04797National Sciences and Engineering Research Council of Canada RGPIN-2016-06717
6 · The paper itself

Abstract

We explore the substrate-dependent charge carrier dynamics of large area graphene films using contact-free non-invasive terahertz spectroscopy. The graphene samples are deposited on seven distinct substrates relevant to semiconductor technologies and flexible/photodetection devices. Using a Drude model for Dirac fermions in graphene and a fitting method based on statistical signal analysis, we extract transport properties such as the charge carrier density and carrier mobility. We find that graphene films supported by substrates with minimal charged impurities exhibit an enhanced carrier mobility, while substrates with a high surface roughness generally lead to a lower transport performance. The smallest amount of doping is observed for graphene placed on the polymer Zeonor, which also has the highest carrier mobility. This work provides valuable guidance in choosing an optimal substrate for graphene to enable applications where high mobility is required.

Identifiers

PMID33888755
PMCPMC8062515

What OpenQuestion holds

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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.