正孔はどのように移動するのか?

カテゴリ: 研究会(論文単位)

論文No: EDD22043,SPC22183

グループ名: 【C】電子・情報・システム部門 電子デバイス/【D】産業応用部門 半導体電力変換合同研究会

発行日: 2022/11/28

タイトル(英語): How do Holes move?

著者名: 高田 育紀(所属なし)

著者名(英語): Ikunori Takata(no affiliation)

キーワード: 正孔モデル，　|自由電子モデル，　|電荷担体の移動形態，　|有効質量のモデル，　|物質波が伴う作用量，　|特殊相対性理論．|model of holes, |model of free electrons, |forms of charge carrier transfer, |model of effective mass, |action quantities with matter waves, |application of special relativity to electron orbit

要約(日本語): 半導体デバイスにおいて、正孔は、電荷極性が逆である以外は、ほぼ自由電子と同等に振る舞うことが良く知られている。そして、正孔は、半導体結晶を構成する共有結合網から電子が1ヶ欠落した箇所であって、半導体に電界が加わると、この欠落箇所を周りの共有結合網の電子(価電子)が再び占有する動作が、電界と逆方向に連続して起こることで、電界方向に正孔は移動すると広く説明されているのだが、それでは正孔の運動量の向きは電子の移動方向となって実態にあわない。今回、正孔を共有結合が解消された2ヶの原子(群)それぞれの(結合に与って

要約(英語): It is well known that in semiconductor devices, holes behave almost the same as free electrons, except that their charge polarity is opposite. It is widely explained that a hole is an electron missing from the covalent network that makes up a semiconductor crystal, and that when an electric field is applied to the semiconductor, the electrons (valence electrons) in the surrounding covalent network reoccupy this missing spot, continuously in the opposite direction of the electric field, thereby causing the hole to move in the direction of the electric field. However, this explanation does not match the actual situation, since the direction of the momentum of the hole is in the direction of electron movement._x000D_ In the present study, we have examined the hole migration procedure in detail from the viewpoint that the outermost electron orbital of each of the two atoms (groups) whose covalent bond has been dissolved is removed from one of the atoms (groups). _x000D_ As a result, we came to the conclusion that the movement of a hole is accompanied not only by the outermost electron orbital moving in the same direction as the hole, but also by the movement of two ∞-shaped orbitals spanning two atoms (groups) in the opposite direction, but that the latter movement is not accompanied by momentum. However, a new interpretation of special relativity and quantum mechanics was necessary to achieve theoretical consistency.

本誌: 2022年12月1日-2022年12月2日電子デバイス/半導体電力変換合同研究会-1

本誌掲載ページ: 65-74 p

原稿種別: 日本語

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