石墨稀奈米帶的熱電特性

NCUIR > College of Electrical Engineering & Computer Science > Graduate Institute of Electrical Engineering > Electronic Thesis & Dissertation > Item 987654321/88392

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/88392

Title:	石墨稀奈米帶的熱電特性
Authors:	康瑞麟;Kang, Rui-Lin
Contributors:	電機工程學系
Keywords:	熱電材料;熱電特性;石墨稀;二維材料;石墨稀奈米帶;Thermoelectric material;graphene nanoribbons;Thermoelectric properties
Date:	2022-06-20
Issue Date:	2022-07-14 01:09:15 (UTC+8)
Publisher:	國立中央大學
Abstract:	近期，許多的熱電研究都集中在可用作發電機和冰箱的熱電器件上，這是基於熱電效應的電能是最重要的綠色能源之一。雖然研究顯示出石墨稀是屬於金屬性的材料，但扶手椅式石墨稀奈米帶(AGNR)是可以由寬度所決定的半導體特性材料。在這邊，我們從理論上研究了扶手椅式的石墨稀奈米帶(AGNR)在彈道傳輸過程中的熱電特性。我們發現扶手椅石墨稀奈米帶(AGNR)的功率因數和熱電優值作為化學位勢的函數，其最大值皆發生在能隙內且在邊緣帶的附近。;Recently, many efforts have focused on thermoelectric devices, which can be used as power generators and refrigerators. The electrical power based on thermoelectric effects is one of the most important green energies. Although graphene shows a metallic phase, armchair graphene nanoribbons (AGNRs) show the semiconducting phases, which are determined by their widths.Here, we have theoretically investigated the thermoelectric properties of armchair graphene nanoribbons in ballistic transport process. It is found that the optimized power factor and thermoelectric figure of merit of AGNRs as functions of chemical potential occur within the central gap and near the band edges.
Appears in Collections:	[Graduate Institute of Electrical Engineering] Electronic Thesis & Dissertation

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