Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width
Abstract The intrinsic resistance of stretchable materials is dependent on strain, following Ohm's law. Here the invariable resistance of highly conductive cross‐linked nanocomposites over 53% strain is reported, where additional electron scattering is absent with stretching. The in situ genera...
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| Format: | Article |
| Language: | English |
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Wiley
2024-12-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409337 |
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| author | C. Muhammed Ajmal Juyeong Jeong Seongsu Cheon M. K. Majee Heejun Yang Seunghyun Baik |
| author_facet | C. Muhammed Ajmal Juyeong Jeong Seongsu Cheon M. K. Majee Heejun Yang Seunghyun Baik |
| author_sort | C. Muhammed Ajmal |
| collection | DOAJ |
| description | Abstract The intrinsic resistance of stretchable materials is dependent on strain, following Ohm's law. Here the invariable resistance of highly conductive cross‐linked nanocomposites over 53% strain is reported, where additional electron scattering is absent with stretching. The in situ generated uniformly dispersed small silver nanosatellite particles (diameter = 3.6 nm) realize a short tunneling barrier width of 4.1 nm in cross‐linked silicone rubber matrix. Furthermore, the barrier height can be precisely controlled by the gap state energy level modulation in silicone rubber using cross‐linkers. The negligible barrier height (0.01 eV) and short barrier width, achieved by the silver nanosatellite particles in cross‐linked silicone rubber, dramatically increase the electrical conductivity (51 710 S cm−1) by more than 4 orders of magnitude. The high conductance is also maintained over 53% strain. The quantum tunneling behavior is observed when the barrier height is increased, following the Simmons approximation theory. The transport becomes diffusive, following Ohm's law, when the barrier width is increased beyond 10.3 nm. This study provides a novel strain‐invariant resistance mechanism in highly conductive cross‐linked nanocomposites. |
| format | Article |
| id | doaj-art-e557023b25164f1baabde7f5ad0df341 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-e557023b25164f1baabde7f5ad0df3412025-08-20T02:55:53ZengWileyAdvanced Science2198-38442024-12-011148n/an/a10.1002/advs.202409337Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and WidthC. Muhammed Ajmal0Juyeong Jeong1Seongsu Cheon2M. K. Majee3Heejun Yang4Seunghyun Baik5Center for Nanotubes and Nanostructured Composites Sungkyunkwan University Suwon 16419 Republic of KoreaDepartment of Physics Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of KoreaSchool of Mechanical Engineering Sungkyunkwan University Suwon 16419 Republic of KoreaCenter for Nanotubes and Nanostructured Composites Sungkyunkwan University Suwon 16419 Republic of KoreaDepartment of Physics Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of KoreaCenter for Nanotubes and Nanostructured Composites Sungkyunkwan University Suwon 16419 Republic of KoreaAbstract The intrinsic resistance of stretchable materials is dependent on strain, following Ohm's law. Here the invariable resistance of highly conductive cross‐linked nanocomposites over 53% strain is reported, where additional electron scattering is absent with stretching. The in situ generated uniformly dispersed small silver nanosatellite particles (diameter = 3.6 nm) realize a short tunneling barrier width of 4.1 nm in cross‐linked silicone rubber matrix. Furthermore, the barrier height can be precisely controlled by the gap state energy level modulation in silicone rubber using cross‐linkers. The negligible barrier height (0.01 eV) and short barrier width, achieved by the silver nanosatellite particles in cross‐linked silicone rubber, dramatically increase the electrical conductivity (51 710 S cm−1) by more than 4 orders of magnitude. The high conductance is also maintained over 53% strain. The quantum tunneling behavior is observed when the barrier height is increased, following the Simmons approximation theory. The transport becomes diffusive, following Ohm's law, when the barrier width is increased beyond 10.3 nm. This study provides a novel strain‐invariant resistance mechanism in highly conductive cross‐linked nanocomposites.https://doi.org/10.1002/advs.202409337barrier heightbarrier widthcross‐linked nanocompositesresistancetunneling |
| spellingShingle | C. Muhammed Ajmal Juyeong Jeong Seongsu Cheon M. K. Majee Heejun Yang Seunghyun Baik Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width Advanced Science barrier height barrier width cross‐linked nanocomposites resistance tunneling |
| title | Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width |
| title_full | Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width |
| title_fullStr | Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width |
| title_full_unstemmed | Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width |
| title_short | Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width |
| title_sort | absence of additional stretching induced electron scattering in highly conductive cross linked nanocomposites with negligible tunneling barrier height and width |
| topic | barrier height barrier width cross‐linked nanocomposites resistance tunneling |
| url | https://doi.org/10.1002/advs.202409337 |
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