基于BAlN/Si/BAlN双异质连接的自动供电真空紫外光探测器
在PubMed上查看摘要
概括
此摘要是机器生成的。研究人员使用六角化物 (hBN) 和添加BxAl1-xN薄膜开发了新的自动供电紫外线探测器. BAlN/Si/BAlN双异构连接对185nm真空紫外线检测具有很高的灵敏度.
科学领域
- 材料科学
- 半导体物理
- 纳米技术
背景情况
- 六角化物 (hBN) 是光电子应用的一个有前途的材料.
- 自动供电的光探测器在能源效率和简化电路方面具有优势.
- 之前的研究探讨了用于紫外线检测的hBN/Si异质连接.
研究的目的
- 研究hBN/Si和BAlN/Si异质连接的VUV反应.
- 增强这些异质连接的自动供电特性.
- 开发一种高灵敏度,自动供电的紫外线探测器.
主要方法
- 无线电频率磁铁喷射用于在Si{100}基板上生长hBN和Al-化BxAl1-xN薄膜.
- 制造hBN/Si和BAlN/Si异质连接
- BAlN/Si/BAlN双异质连接结构的设计和制备.
主要成果
- 这种hBN/Si异常连接对185nm的紫外线有很好的反应.
- BAlN/Si异构表现出响应和弱自动化的特性.
- 在零偏差下,BAlN/Si/BAlN双异质连接实现了3600的高光暗电流比和70mA/W的响应.
结论
- 在BxAl1-xN中添加Al可增强紫外线检测的自动驱动特性.
- BAlN/Si/BAlN双异质连接代表了自动供电紫外线探测器技术的重大进步.
- 这项工作展示了通往高灵敏性和高能效的UV传感器的道路.
相关概念视频
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.

