| DC 欄位 |
值 |
語言 |
| DC.contributor | 電機工程學系 | zh_TW |
| DC.creator | 謝長諺 | zh_TW |
| DC.creator | Chang-Yan Hsieh | en_US |
| dc.date.accessioned | 2021-7-2T07:39:07Z | |
| dc.date.available | 2021-7-2T07:39:07Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=108521124 | |
| dc.contributor.department | 電機工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 功率因數(PF=S^2 G_e)取決於塞貝克係數(S)和電子電導(G_e)。G_e的增強將不可避免地抑制S，因為它們密切相關，所以，PF的優化非常困難。在這裡，我們從理論上研究了帶有從電極注入的載子的二維量子點(QD)陣列的熱電特性，共振穿隧過程中的二維量子點陣列的Lorenz數滿足Wiedemann-Franz定律，此定律證實了微帶的形成。當微帶中心遠離電極的費米能階時，電子傳輸將在熱電子輔助穿隧過程(TATP)中進行，在這種情況下，帶狀情況下的G_e和原子狀情況下的S可以同時發生。我們透過本文證明，隨著電子態數量的增加，G_e的增強不會抑制TATP中的S。 | zh_TW |
| dc.description.abstract | The thermal power (PF=S^2 G_e) depends on the Seebeck coefficient (S) and electron conductance (G_e). The enhancement of G_e will unavoidably suppress S because they are closely related. As a consequence, the optimization of PF is extremely difficult. Here, we theoretically investigated the thermoelectric properties of two-dimensional quantum dot (QD) arrays with carriers injected from electrodes. The Lorenz number of 2D QD arrays in the resonant tunneling procedure satisfies the Wiedemann-Franz law, which confirms the formation of minibands. When the miniband center is far away from the Fermi level of the electrodes, the electron transport is in the thermionic-assisted tunneling procedure (TATP). In this regime, G_e in band-like situation and S in atom-like situation can happen simultaneously. We have demonstrated that the enhancement of G_e with an increasing number of electronic states will not suppress S in the TATP. | en_US |
| DC.subject | 熱電材料 | zh_TW |
| DC.subject | 二維 | zh_TW |
| DC.subject | 量子點陣列 | zh_TW |
| DC.subject | 熱電優質 | zh_TW |
| DC.subject | Thermoelectric material | en_US |
| DC.subject | two-dimensional | en_US |
| DC.subject | quantum dot arrays | en_US |
| DC.subject | ZT | en_US |
| DC.title | 帶狀有限二維量子點陣列的熱電性質 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Thermoelectric properties of finite two-dimensional quantum dot arrays with band-like electronic states | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |