{ "id": "2312.05874", "version": "v1", "published": "2023-12-10T13:07:03.000Z", "updated": "2023-12-10T13:07:03.000Z", "title": "Thermoelectric Properties of Armchair Graphene Nanoribbons with Array Characteristics", "authors": [ "David M T Kuo" ], "comment": "6 pages and 5 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "The thermoelectric properties of armchair graphene nanoribbons (AGNRs) with array characteristics are investigated theoretically using the tight-binding model and Green's function technique. The AGNR structures with array characteristics are created by embedding a narrow boron nitride nanoribbon (BNNR) into a wider AGNR, resulting in two narrow AGNRs. This system is denoted as w-AGNR/n-BNNR, where 'w' and 'n' represent the widths of the wider AGNR and narrow BNNR, respectively. We elucidate the coupling effect between two narrow symmetrical AGNRs on the electronic structure of w-AGNR/n-BNNR. A notable discovery is that the power factor of the 15-AGNR/5-BNNR with the minimum width surpasses the quantum limitation of power factor for 1D ideal systems. The energy level degeneracy observed in the first subbands of w-AGNR/n-BNNR structures proves to be highly advantageous in enhancing the electrical power outputs of graphene nanoribbon devices.", "revisions": [ { "version": "v1", "updated": "2023-12-10T13:07:03.000Z" } ], "analyses": { "keywords": [ "armchair graphene nanoribbons", "array characteristics", "thermoelectric properties", "power factor", "wider agnr" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }