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Mesoscopic 3D Charg...
Mesoscopic 3D Charge Transport in Solution-Processed Graphene-Based Thin Films: A Multiscale Analysis
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- Boschi, Alex (author)
- Fondazione Istituto Italiano di Tecnologia,Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Kovtun, Alessandro (author)
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Liscio, F. (author)
- Consiglo Nazionale Delle Richerche
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- Xia, Zhenyuan, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Kim, Kyung Ho, 1984 (author)
- Royal Holloway University of London,Chalmers tekniska högskola,Chalmers University of Technology
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- Lara Avila, Samuel, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- De Simone, Sara (author)
- Consiglo Nazionale Delle Richerche
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- Mussi, Valentina (author)
- Consiglo Nazionale Delle Richerche
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- Barone, C. (author)
- Universita degli Studi di Salerno,University of Salerno
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- Pagano, S. (author)
- Universita degli Studi di Salerno,University of Salerno
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- Gobbi, Marco (author)
- Centro de Investigacion Cooperativa en Nanociencias
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Samorì, Paolo (author)
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Affronte, Marco (author)
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- Candini, Andrea (author)
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Palermo, Vincenzo, 1972 (author)
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Liscio, A. (author)
- Consiglo Nazionale Delle Richerche
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Small. - 1613-6810 .- 1613-6829. ; 19:42
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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Abstract
Subject headings
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- Graphene and related 2D material (GRM) thin films consist of 3D assembly of billions of 2D nanosheets randomly distributed and interacting via van der Waals forces. Their complexity and the multiscale nature yield a wide variety of electrical characteristics ranging from doped semiconductor to glassy metals depending on the crystalline quality of the nanosheets, their specific structural organization ant the operating temperature. Here, the charge transport (CT) mechanisms are studied that are occurring in GRM thin films near the metal-insulator transition (MIT) highlighting the role of defect density and local arrangement of the nanosheets. Two prototypical nanosheet types are compared, i.e., 2D reduced graphene oxide and few-layer-thick electrochemically exfoliated graphene flakes, forming thin films with comparable composition, morphology and room temperature conductivity, but different defect density and crystallinity. By investigating their structure, morphology, and the dependence of their electrical conductivity on temperature, noise and magnetic-field, a general model is developed describing the multiscale nature of CT in GRM thin films in terms of hopping among mesoscopic bricks, i.e., grains. The results suggest a general approach to describe disordered van der Waals thin films.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- charge transport
- graphene
- Van der Waals thin films
- weak localization
- phase transition
- disordered systems
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Boschi, Alex
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Kovtun, Alessand ...
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Liscio, F.
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Xia, Zhenyuan, 1 ...
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Kim, Kyung Ho, 1 ...
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Lara Avila, Samu ...
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show more...
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De Simone, Sara
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Mussi, Valentina
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Barone, C.
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Pagano, S.
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Gobbi, Marco
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Samorì, Paolo
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Affronte, Marco
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Candini, Andrea
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Palermo, Vincenz ...
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Liscio, A.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Small
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Chalmers University of Technology