Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons
In this study, a basic design of area-arrayed graphene nanoribbon (GNR) strain sensors was proposed to realize the next generation of strain sensors. To fabricate the area-arrayed GNRs, a top-down approach was employed, in which GNRs were cut out from a large graphene sheet using an electron beam li...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/7/1701 |
| _version_ | 1797528497971789824 |
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| author | Ken Suzuki Ryohei Nakagawa Qinqiang Zhang Hideo Miura |
| author_facet | Ken Suzuki Ryohei Nakagawa Qinqiang Zhang Hideo Miura |
| author_sort | Ken Suzuki |
| collection | DOAJ |
| description | In this study, a basic design of area-arrayed graphene nanoribbon (GNR) strain sensors was proposed to realize the next generation of strain sensors. To fabricate the area-arrayed GNRs, a top-down approach was employed, in which GNRs were cut out from a large graphene sheet using an electron beam lithography technique. GNRs with widths of 400 nm, 300 nm, 200 nm, and 50 nm were fabricated, and their current-voltage characteristics were evaluated. The current values of GNRs with widths of 200 nm and above increased linearly with increasing applied voltage, indicating that these GNRs were metallic conductors and a good ohmic junction was formed between graphene and the electrode. There were two types of GNRs with a width of 50 nm, one with a linear current–voltage relationship and the other with a nonlinear one. We evaluated the strain sensitivity of the 50 nm GNR exhibiting metallic conduction by applying a four-point bending test, and found that the gauge factor of this GNR was about 50. Thus, GNRs with a width of about 50 nm can be used to realize a highly sensitive strain sensor. |
| first_indexed | 2024-03-10T09:59:12Z |
| format | Article |
| id | doaj.art-ede7bd09d8fe4a75be9f0b7dc81683d5 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T09:59:12Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-ede7bd09d8fe4a75be9f0b7dc81683d52023-11-22T02:05:40ZengMDPI AGNanomaterials2079-49912021-06-01117170110.3390/nano11071701Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene NanoribbonsKen Suzuki0Ryohei Nakagawa1Qinqiang Zhang2Hideo Miura3Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanFracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanFracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanFracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanIn this study, a basic design of area-arrayed graphene nanoribbon (GNR) strain sensors was proposed to realize the next generation of strain sensors. To fabricate the area-arrayed GNRs, a top-down approach was employed, in which GNRs were cut out from a large graphene sheet using an electron beam lithography technique. GNRs with widths of 400 nm, 300 nm, 200 nm, and 50 nm were fabricated, and their current-voltage characteristics were evaluated. The current values of GNRs with widths of 200 nm and above increased linearly with increasing applied voltage, indicating that these GNRs were metallic conductors and a good ohmic junction was formed between graphene and the electrode. There were two types of GNRs with a width of 50 nm, one with a linear current–voltage relationship and the other with a nonlinear one. We evaluated the strain sensitivity of the 50 nm GNR exhibiting metallic conduction by applying a four-point bending test, and found that the gauge factor of this GNR was about 50. Thus, GNRs with a width of about 50 nm can be used to realize a highly sensitive strain sensor.https://www.mdpi.com/2079-4991/11/7/1701graphene nanoribbonpiezoresistivitystrain sensor |
| spellingShingle | Ken Suzuki Ryohei Nakagawa Qinqiang Zhang Hideo Miura Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons Nanomaterials graphene nanoribbon piezoresistivity strain sensor |
| title | Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons |
| title_full | Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons |
| title_fullStr | Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons |
| title_full_unstemmed | Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons |
| title_short | Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons |
| title_sort | development of highly sensitive strain sensor using area arrayed graphene nanoribbons |
| topic | graphene nanoribbon piezoresistivity strain sensor |
| url | https://www.mdpi.com/2079-4991/11/7/1701 |
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