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相关概念视频

Semiconductors01:22

Semiconductors

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...
Types of Semiconductors01:20

Types of Semiconductors

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...

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晶圆尺度二维半导体用于深度紫外线传感.

Mustaqeem Shiffa1, Benjamin T Dewes1, Jonathan Bradford1

  • 1School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK.

Small (Weinheim an der Bergstrasse, Germany)
|October 5, 2023
PubMed
概括

研究人员使用Epitaxy开发了晶圆尺度的2D化 (GaSe),使可扩展的UV-C光子传感能够用于先进的光电子. 这种自下而上的方法克服了传统的二维半导体制造方法的局限性.

关键词:
的化是的化.分子光束的表达式是epitaxy.光电子产品的光电子产品.摄影探测器是一种光检测器.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 凝聚物质物理学 凝聚物质物理学
  • 纳米技术纳米技术

背景情况:

  • 二维半导体 (2DSM) 在各种技术领域提供了变革性的潜力.
  • 目前的自上而下的制造方法,如苏格兰带脱皮,在可扩展性和精确的功能工程方面面临挑战.
  • 需要可扩展的自下而上的方法来生产高质量的2DSM.

研究的目的:

  • 展示一种自下而上的表轴技术,用于制造高质量,晶圆尺度的2D化 (GaSe).
  • 探索GaSe在光电子应用中的潜力,特别是在UV-C频谱中.
  • 建立一个可扩展的制造路线,用于先进的深紫外光电子产品.

主要方法:

  • 使用定制设施,控制厚度的GaSe层的表轴生长.
  • 在现场进行实时监测和成长过程中的特征研究.
  • 材料属性的理论和实验验证,包括中心对称性,堆叠和光学异构性.

主要成果:

  • 成功制造了晶圆尺度,高质量的2D GaSe.Se.
  • 验证GaSe层的中心对称性和范德瓦尔斯堆叠.
  • 显示光学异质性和共振紫外线吸收,适用于光子传感.

结论:

  • Epitaxy提供了一个可扩展的,自下而上的路线,用于生产高级2D半导体,如GaSe.Se.
  • 展示的GaSe材料适用于UV-C范围内的光子传感.
  • 这项工作为可扩展的深紫外光电器件铺平了道路.