Thickness-dependent Crack Propagation in Uniaxially Strained Conducting Graphene Oxide Films on Flexible Substrates Article Swipe
Tushar Sakorikar
,
Maheswari Kavirajan Kavitha
,
Pramitha Vayalamkuzhi
,
Manu Jaiswal
·
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1038/s41598-017-02703-2
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1038/s41598-017-02703-2
We demonstrate that crack propagation in uniaxially strained reduced graphene oxide (rGO) films is substantially dependent on the film thickness, for films in the sub-micron regime. rGO film on flexible polydimethylsiloxane (PDMS) substrate develop quasi-periodic cracks upon application of strain. The crack density and crack width follow contrasting trends as film thickness is increased and the results are described in terms of a sequential cracking model. Further, these cracks also have a tendency to relax when the strain is released. These features are also reflected in the strain-dependent electrical dc and ac conductivity studies. For an optimal thickness (3-coat), the films behave as strain-resistant, while for all other values it becomes strain-responsive, attributed to a favorable combination of crack density and width. This study of the film thickness dependent response and the crack propagation mechanism under strain is a significant step for rationalizing the application of layered graphene-like systems for flexible optoelectronic and strain sensing applications. When the thickness is tuned for enhanced extent of crack propagation, strain-sensors with gauge factor up to ∼470 are realized with the same material. When thickness is chosen to suppress the crack propagation, strain-resistive flexible TiO 2 - rGO UV photoconductor is realized.
Related Topics
Concepts
Materials science
Graphene
Resistive touchscreen
Gauge factor
Composite material
Polydimethylsiloxane
Strain gauge
Oxide
Strain (injury)
Fracture mechanics
Substrate (aquarium)
Nanotechnology
Fabrication
Electrical engineering
Metallurgy
Engineering
Alternative medicine
Oceanography
Pathology
Internal medicine
Medicine
Geology
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1038/s41598-017-02703-2
- https://www.nature.com/articles/s41598-017-02703-2.pdf
- OA Status
- gold
- Cited By
- 43
- References
- 45
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2619152849
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W2619152849Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1038/s41598-017-02703-2Digital Object Identifier
- Title
-
Thickness-dependent Crack Propagation in Uniaxially Strained Conducting Graphene Oxide Films on Flexible SubstratesWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2017Year of publication
- Publication date
-
2017-05-25Full publication date if available
- Authors
-
Tushar Sakorikar, Maheswari Kavirajan Kavitha, Pramitha Vayalamkuzhi, Manu JaiswalList of authors in order
- Landing page
-
https://doi.org/10.1038/s41598-017-02703-2Publisher landing page
- PDF URL
-
https://www.nature.com/articles/s41598-017-02703-2.pdfDirect link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://www.nature.com/articles/s41598-017-02703-2.pdfDirect OA link when available
- Concepts
-
Materials science, Graphene, Resistive touchscreen, Gauge factor, Composite material, Polydimethylsiloxane, Strain gauge, Oxide, Strain (injury), Fracture mechanics, Substrate (aquarium), Nanotechnology, Fabrication, Electrical engineering, Metallurgy, Engineering, Alternative medicine, Oceanography, Pathology, Internal medicine, Medicine, GeologyTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
43Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 5, 2024: 8, 2023: 6, 2022: 9, 2021: 2Per-year citation counts (last 5 years)
- References (count)
-
45Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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