Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions
This study investigated the electronic properties and optical joint density of states (JDOS) of graphene nanoribbons (GNRs), with a specific focus on zigzag GNRs (ZGNRs) and armchair GNRs (AGNRs). Using the tight-binding method and MATLAB simulations, we analysed the impact of the first-, second- an...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/jnt/7988511 |
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| author | Yuki Wong Phing Yen Liew Afiq Hamzah Nurul Ezaila Alias Tian Swee Tan Mohammed Talal Cheng Siong Lim Michael Loong Peng Tan |
| author_facet | Yuki Wong Phing Yen Liew Afiq Hamzah Nurul Ezaila Alias Tian Swee Tan Mohammed Talal Cheng Siong Lim Michael Loong Peng Tan |
| author_sort | Yuki Wong |
| collection | DOAJ |
| description | This study investigated the electronic properties and optical joint density of states (JDOS) of graphene nanoribbons (GNRs), with a specific focus on zigzag GNRs (ZGNRs) and armchair GNRs (AGNRs). Using the tight-binding method and MATLAB simulations, we analysed the impact of the first-, second- and third-nearest-neighbour interactions on the band structure, DOS and JDOS of the GNRs. Our findings revealed that the ZGNRs exhibited metallic characteristics, whereas the AGNRs displayed semiconducting characteristics. The inclusion of higher-order interactions resulted in significant energy shifts and alterations in peak magnitudes, highlighting the intricate relationship between the structural geometry and electronic properties. The insights from this study are crucial for the advancement of nanoelectronic devices and highlight the significance of edge design in determining the electronic properties of GNRs. The comprehensive analysis provides a foundation for future investigations into the broader applications of GNRs, offering potential breakthroughs in nanoelectronics and the development of next-generation electronic devices. Further research is encouraged to explore these phenomena in more detail and harness the unique properties of GNRs for innovative technological applications. |
| format | Article |
| id | doaj-art-cb6186cdf57b4faf8dd5e7154a9bee35 |
| institution | DOAJ |
| issn | 1687-9511 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-cb6186cdf57b4faf8dd5e7154a9bee352025-08-20T03:08:18ZengWileyJournal of Nanotechnology1687-95112025-01-01202510.1155/jnt/7988511Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour InteractionsYuki Wong0Phing Yen Liew1Afiq Hamzah2Nurul Ezaila Alias3Tian Swee Tan4Mohammed Talal5Cheng Siong Lim6Michael Loong Peng Tan7Faculty of Electrical EngineeringFaculty of Electrical EngineeringFaculty of Electrical EngineeringFaculty of Electrical EngineeringBioinspired Device and Tissue Engineering Research GroupCollege of Engineering TechnologyFaculty of Electrical EngineeringFaculty of Electrical EngineeringThis study investigated the electronic properties and optical joint density of states (JDOS) of graphene nanoribbons (GNRs), with a specific focus on zigzag GNRs (ZGNRs) and armchair GNRs (AGNRs). Using the tight-binding method and MATLAB simulations, we analysed the impact of the first-, second- and third-nearest-neighbour interactions on the band structure, DOS and JDOS of the GNRs. Our findings revealed that the ZGNRs exhibited metallic characteristics, whereas the AGNRs displayed semiconducting characteristics. The inclusion of higher-order interactions resulted in significant energy shifts and alterations in peak magnitudes, highlighting the intricate relationship between the structural geometry and electronic properties. The insights from this study are crucial for the advancement of nanoelectronic devices and highlight the significance of edge design in determining the electronic properties of GNRs. The comprehensive analysis provides a foundation for future investigations into the broader applications of GNRs, offering potential breakthroughs in nanoelectronics and the development of next-generation electronic devices. Further research is encouraged to explore these phenomena in more detail and harness the unique properties of GNRs for innovative technological applications.http://dx.doi.org/10.1155/jnt/7988511 |
| spellingShingle | Yuki Wong Phing Yen Liew Afiq Hamzah Nurul Ezaila Alias Tian Swee Tan Mohammed Talal Cheng Siong Lim Michael Loong Peng Tan Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions Journal of Nanotechnology |
| title | Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions |
| title_full | Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions |
| title_fullStr | Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions |
| title_full_unstemmed | Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions |
| title_short | Electronic Properties and Optical Joint Density of States in Graphene Nanoribbons With Extended Nearest-Neighbour Interactions |
| title_sort | electronic properties and optical joint density of states in graphene nanoribbons with extended nearest neighbour interactions |
| url | http://dx.doi.org/10.1155/jnt/7988511 |
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