Stretchable conducting gold films prepared with composite MWNT/PDMS substrates
Novel stretchable conducting films were prepared by depositing gold layers onto polymer nano-composites substrates formed by in-situ crosslinking of polydimethylsiloxane (PDMS) in the presence of multiwall carbon nanotubes (MWNT). The MWNT content interferes with the PDMS cure reaction giving variat...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2015-10-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4935189 |
| _version_ | 1818989402165084160 |
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| author | M. U. Manzoor P. Lemoine D. Dixon J. W. J. Hamilton P. D. Maguire |
| author_facet | M. U. Manzoor P. Lemoine D. Dixon J. W. J. Hamilton P. D. Maguire |
| author_sort | M. U. Manzoor |
| collection | DOAJ |
| description | Novel stretchable conducting films were prepared by depositing gold layers onto polymer nano-composites substrates formed by in-situ crosslinking of polydimethylsiloxane (PDMS) in the presence of multiwall carbon nanotubes (MWNT). The MWNT content interferes with the PDMS cure reaction giving variations in thermal degradation, solvent swelling, mechanical and electrical properties. Tensile cycling experiments were carried out on the gold-coated PDMS and nano-composite substrates SEM analysis and electrical measurements demonstrated that the crack widening and increased electrical resistance observed during strain cycling were reversible. The inclusion of 8 % MWNT into PDMS brought more micro-cracking in the gold layer yet reduced the electrical resistance of the gold-coated samples by 172X at 5 % strain, 38X at 10 % strain and 19X at 20 %. Hence, this improvement in conduction is attributed to assisted-conduction through the MWNT loaded substrate. This mechanism results in a more stable and reproducible electrical behaviour, making electrical conduction less critically dependent on defects in the gold layer. |
| first_indexed | 2024-12-20T19:37:54Z |
| format | Article |
| id | doaj.art-faa6c28beeb540a188ee1cc219e11abf |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-20T19:37:54Z |
| publishDate | 2015-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-faa6c28beeb540a188ee1cc219e11abf2022-12-21T19:28:37ZengAIP Publishing LLCAIP Advances2158-32262015-10-01510107237107237-1410.1063/1.4935189085510ADVStretchable conducting gold films prepared with composite MWNT/PDMS substratesM. U. Manzoor0P. Lemoine1D. Dixon2J. W. J. Hamilton3P. D. Maguire4Department of Metallurgy & Materials Engineering, College of Engineering & Emerging Technologies, University of the Punjab, Lahore, PakistanNIBEC, University of Ulster at Jordanstown, Shore Road, Newtownabbey, Co. Antrim, BT37 0QB, Northern Ireland, UKNIBEC, University of Ulster at Jordanstown, Shore Road, Newtownabbey, Co. Antrim, BT37 0QB, Northern Ireland, UKNIBEC, University of Ulster at Jordanstown, Shore Road, Newtownabbey, Co. Antrim, BT37 0QB, Northern Ireland, UKNIBEC, University of Ulster at Jordanstown, Shore Road, Newtownabbey, Co. Antrim, BT37 0QB, Northern Ireland, UKNovel stretchable conducting films were prepared by depositing gold layers onto polymer nano-composites substrates formed by in-situ crosslinking of polydimethylsiloxane (PDMS) in the presence of multiwall carbon nanotubes (MWNT). The MWNT content interferes with the PDMS cure reaction giving variations in thermal degradation, solvent swelling, mechanical and electrical properties. Tensile cycling experiments were carried out on the gold-coated PDMS and nano-composite substrates SEM analysis and electrical measurements demonstrated that the crack widening and increased electrical resistance observed during strain cycling were reversible. The inclusion of 8 % MWNT into PDMS brought more micro-cracking in the gold layer yet reduced the electrical resistance of the gold-coated samples by 172X at 5 % strain, 38X at 10 % strain and 19X at 20 %. Hence, this improvement in conduction is attributed to assisted-conduction through the MWNT loaded substrate. This mechanism results in a more stable and reproducible electrical behaviour, making electrical conduction less critically dependent on defects in the gold layer.http://dx.doi.org/10.1063/1.4935189 |
| spellingShingle | M. U. Manzoor P. Lemoine D. Dixon J. W. J. Hamilton P. D. Maguire Stretchable conducting gold films prepared with composite MWNT/PDMS substrates AIP Advances |
| title | Stretchable conducting gold films prepared with composite MWNT/PDMS substrates |
| title_full | Stretchable conducting gold films prepared with composite MWNT/PDMS substrates |
| title_fullStr | Stretchable conducting gold films prepared with composite MWNT/PDMS substrates |
| title_full_unstemmed | Stretchable conducting gold films prepared with composite MWNT/PDMS substrates |
| title_short | Stretchable conducting gold films prepared with composite MWNT/PDMS substrates |
| title_sort | stretchable conducting gold films prepared with composite mwnt pdms substrates |
| url | http://dx.doi.org/10.1063/1.4935189 |
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