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理學院
物理學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73905
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search.filters.author.Cai, Sylvia Qingyu
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search.filters.author.蔡晴羽
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search.filters.subject.石墨烯
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search.filters.subject.2D Materials
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search.filters.subject.Ab Initio Calculations
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search.filters.subject.DFT
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search.filters.subject.Graphene
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search.filters.subject.Heterostructures
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硒化銦-石墨烯異質結構電導的第一原理研究
(
2019
)
蔡晴羽
;
Cai, Sylvia Qingyu
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這項研究是針對一系列由單層硒化銦(SL-InSe)和單層石墨烯(SLG)組成的凡德瓦異質結構所進行的第一原理研究。研究過程中,依照硒化銦與石墨烯層間不匹配(Mismatch)的邊界形貌將一系列異質結構量子元件劃分成兩類,以探究其性質差異並進行計算。 本研究關注的是硒化銦-石墨烯異質結構的量子傳輸特性,所有計算模擬的理論基礎結合了密度泛函理論(DFT)與Keldysh非平衡格林函數(NEGF)理論。進階的量子傳輸計算由Nanodcal完成,Nanodcal是一種基於NEGF-DFT理論方法的計算工具,本研究中使用的所有建模與計算工具包括:VASP,VESTA,Device Studio和Nanodcal。研究結果呈現出所選系列中硒化銦-石墨烯異質結構的量子傳輸趨勢。
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