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関連する概念動画

Semiconductors01:22

Semiconductors

1.6K
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
1.6K
Types of Semiconductors01:20

Types of Semiconductors

1.5K
Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
1.5K
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

1.1K
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
1.1K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

625
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
625
Electron Carriers01:24

Electron Carriers

92.0K
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
92.0K
Electron Affinity03:07

Electron Affinity

43.4K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
43.4K

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Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
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Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope

Published on: May 28, 2016

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高性能ソフト電子機器のための半導体ナノ膜材料

Mikayla A Yoder1,2, Zheng Yan3, Mengdi Han4

  • 1School of Chemical Sciences , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States.

Journal of the American Chemical Society
|June 29, 2018
PubMed
まとめ
この要約は機械生成です。

研究者は柔軟な電子機器のための 薄い単結晶無機半導体ナノ膜を開発しています これらの材料は新しいデバイスのアーキテクチャと 次世代技術の調整可能な電子特性を可能にします

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
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Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Studying Large Amplitude Oscillatory Shear Response of Soft Materials
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科学分野:

  • 材料科学
  • ナノテクノロジー
  • 電子工学

背景:

  • 単結晶無機半導体ナノ膜の合成と操作は,重要な世界的な研究に刺激を与えました.
  • ナノ膜は高度な電子機器の 柔軟性や軽量性などの ユニークな特性を備えています

研究 の 目的:

  • ナノ膜合成技術と高性能エレクトロニクスにおけるその応用を検討する.
  • ナノメブランの潜在力を強調し,新しいデバイスのフォームファクターと3Dアーキテクチャを作成します.
  • ナノ膜ベースのデバイスの開発における課題と将来の方向性について議論する.

主な方法:

  • ナノ膜合成方法の検討
  • 精密で高通量操作技術の分析
  • シリコンナノ膜,移行金属二カルコゲン化物,リンなどの高性能半導体を使用する材料化学のレビュー.

主要な成果:

  • ナノ膜は,曲線的表面とのコンフォーム接触と,3Dナノ/マイクロ構造のストレスの誘発による自己組み立てを可能にします.
  • 薄い半導体における量子とサイズ依存の効果は,バンドギャップエンジニアリングを可能にします.
  • 柔軟で非従来の電子・光電子機器へのナノ膜統合の実証

結論:

  • ナノ膜は次世代電子と光電子の 変革のプラットフォームです
  • ナノ膜化学と操作技術における継続的な進歩は,技術的進歩にとって極めて重要です.
  • ナノ膜のユニークな性質は デバイスの設計と機能の新たな可能性を 開拓します