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Revealing the growt...
Revealing the growth of copper on polystyrene- : Block -poly(ethylene oxide) diblock copolymer thin films with in situ GISAXS
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Schaper, S. J. (author)
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Löhrer, F. C. (author)
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Xia, S. (author)
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Geiger, C. (author)
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Schwartzkopf, M. (author)
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Pandit, P. (author)
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Rubeck, J. (author)
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Fricke, B. (author)
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Frenzke, S. (author)
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Hinz, A. M. (author)
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Carstens, N. (author)
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Polonskyi, O. (author)
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Strunskus, T. (author)
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Faupel, F. (author)
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- Roth, Stephan V. (author)
- KTH,Biokompositer,Photon Science, Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
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Müller-Buschbaum, P. (author)
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(creator_code:org_t)
- 2021
- 2021
- English.
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In: Nanoscale. - : Royal Society of Chemistry (RSC). - 2040-3364 .- 2040-3372. ; 13:23, s. 10555-10565
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Copper (Cu) as an excellent electrical conductor and the amphiphilic diblock copolymer polystyrene-block-poly(ethylene oxide) (PS-b-PEO) as a polymer electrolyte and ionic conductor can be combined with an active material in composite electrodes for polymer lithium-ion batteries (LIBs). As interfaces are a key issue in LIBs, sputter deposition of Cu contacts on PS-b-PEO thin films with high PEO fraction is investigated with in situ grazing-incidence small-angle X-ray scattering (GISAXS) to follow the formation of the Cu layer in real-time. We observe a hierarchical morphology of Cu clusters building larger Cu agglomerates. Two characteristic distances corresponding to the PS-b-PEO microphase separation and the Cu clusters are determined. A selective agglomeration of Cu clusters on the PS domains explains the origin of the persisting hierarchical morphology of the Cu layer even after a complete surface coverage is reached. The spheroidal shape of the Cu clusters growing within the first few nanometers of sputter deposition causes a highly porous Cu-polymer interface. Four growth stages are distinguished corresponding to different kinetics of the cluster growth of Cu on PS-b-PEO thin films: (I) nucleation, (II) diffusion-driven growth, (III) adsorption-driven growth, and (IV) grain growth of Cu clusters. Percolation is reached at an effective Cu layer thickness of 5.75 nm.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Agglomeration
- Aliphatic compounds
- Block copolymers
- Deposition
- Ethylene
- Grain growth
- Growth kinetics
- Microphase separation
- Morphology
- Oxide films
- Polyelectrolytes
- Polyethylene oxides
- Polystyrenes
- Solvents
- Thin film lithium ion batteries
- Thin films
- X ray scattering
- Amphiphilic diblock copolymers
- Characteristic distance
- Diblock copolymer thin films
- Electrical conductors
- Grazing incidence small-angle X-ray scattering
- Hierarchical morphology
- Polymer lithium ion battery
- Selective agglomeration
- Copper
Publication and Content Type
- ref (subject category)
- art (subject category)
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Nanoscale
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To the university's database
- By the author/editor
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Schaper, S. J.
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Löhrer, F. C.
-
Xia, S.
-
Geiger, C.
-
Schwartzkopf, M.
-
Pandit, P.
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show more...
-
Rubeck, J.
-
Fricke, B.
-
Frenzke, S.
-
Hinz, A. M.
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Carstens, N.
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Polonskyi, O.
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Strunskus, T.
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Faupel, F.
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Roth, Stephan V.
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Müller-Buschbaum ...
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show less...
- 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 ...
- Articles in the publication
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Nanoscale
- By the university
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Royal Institute of Technology