Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints
In this paper, the electron transport through a zigzag single-walled carbon nanotube (SWCNT) junction consisting of zigzag SWCNT (central region) sandwiched between two semi-infinite metallic zigzag SWCNT leads to the presence of an applied uniaxial strain is numerically investigated. This study is b...
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| Format: | Article |
| Language: | fas |
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Alzahra University
2022-09-01
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| Series: | فیزیک کاربردی ایران |
| Subjects: | |
| Online Access: | https://jap.alzahra.ac.ir/article_6440_40b94b27694871ba57e01382b1e9d6d3.pdf |
| _version_ | 1811209441511473152 |
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| author | Ahmad Ahmadi Fouladi |
| author_facet | Ahmad Ahmadi Fouladi |
| author_sort | Ahmad Ahmadi Fouladi |
| collection | DOAJ |
| description | In this paper, the electron transport through a zigzag single-walled carbon nanotube (SWCNT) junction consisting of zigzag SWCNT (central region) sandwiched between two semi-infinite metallic zigzag SWCNT leads to the presence of an applied uniaxial strain is numerically investigated. This study is based on a nearest-neighbor tight-binding approximation within the framework of a generalized Green’s function technique and relies on the Landauer-B¨utikker formalism. The results show that the electron transport properties of the system can be well controlled by modifying the uniaxial strain strength and length of the SWCNT junction. Besides, applying compressive strain is more effective than tensile strain in opening a band gap in the system. Furthermore, the current amplitude for the tensile strain is bigger than the compressive strain with the same absolute values of uniaxial strain strength. As the length of the intermediate region increases, the density of states in Fermi energy decreases, and the magnitude of the electron emission function in Fermi energy decreases to zero, leading to the transition of the metal to the semiconductor. |
| first_indexed | 2024-04-12T04:39:27Z |
| format | Article |
| id | doaj.art-d8bebe440a494e67bd60891b90c39b95 |
| institution | Directory Open Access Journal |
| issn | 2783-1043 2783-1051 |
| language | fas |
| last_indexed | 2024-04-12T04:39:27Z |
| publishDate | 2022-09-01 |
| publisher | Alzahra University |
| record_format | Article |
| series | فیزیک کاربردی ایران |
| spelling | doaj.art-d8bebe440a494e67bd60891b90c39b952022-12-22T03:47:42ZfasAlzahra Universityفیزیک کاربردی ایران2783-10432783-10512022-09-0112371810.22051/ijap.2022.39336.12606440Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube JointsAhmad Ahmadi Fouladi0Assistant Professor, Department of Physics, Sari Branch, Islamic Azad University, Sari, Iran.In this paper, the electron transport through a zigzag single-walled carbon nanotube (SWCNT) junction consisting of zigzag SWCNT (central region) sandwiched between two semi-infinite metallic zigzag SWCNT leads to the presence of an applied uniaxial strain is numerically investigated. This study is based on a nearest-neighbor tight-binding approximation within the framework of a generalized Green’s function technique and relies on the Landauer-B¨utikker formalism. The results show that the electron transport properties of the system can be well controlled by modifying the uniaxial strain strength and length of the SWCNT junction. Besides, applying compressive strain is more effective than tensile strain in opening a band gap in the system. Furthermore, the current amplitude for the tensile strain is bigger than the compressive strain with the same absolute values of uniaxial strain strength. As the length of the intermediate region increases, the density of states in Fermi energy decreases, and the magnitude of the electron emission function in Fermi energy decreases to zero, leading to the transition of the metal to the semiconductor.https://jap.alzahra.ac.ir/article_6440_40b94b27694871ba57e01382b1e9d6d3.pdfcarbon nanotube junctionelectron transportuniaxial straingreen’s function method |
| spellingShingle | Ahmad Ahmadi Fouladi Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints فیزیک کاربردی ایران carbon nanotube junction electron transport uniaxial strain green’s function method |
| title | Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints |
| title_full | Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints |
| title_fullStr | Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints |
| title_full_unstemmed | Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints |
| title_short | Research Paper: Investigation of the Effect of Uniaxial Strain on the Electrical Transport Properties of Zigzag Carbon Nanotube Joints |
| title_sort | research paper investigation of the effect of uniaxial strain on the electrical transport properties of zigzag carbon nanotube joints |
| topic | carbon nanotube junction electron transport uniaxial strain green’s function method |
| url | https://jap.alzahra.ac.ir/article_6440_40b94b27694871ba57e01382b1e9d6d3.pdf |
| work_keys_str_mv | AT ahmadahmadifouladi researchpaperinvestigationoftheeffectofuniaxialstrainontheelectricaltransportpropertiesofzigzagcarbonnanotubejoints |