红外探测器应用的高质量HgCdSe的增长
Zekai Zhang1, Wenwu Pan1, Gilberto A Umana Membreno1
1Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia.
Materials (Basel, Switzerland)
|August 14, 2025
概括
为红外探测器培养了高质量的HgCdSe材料,显示了下一代设备的潜力. 虽然性能目前低于HgCdTe,但HgCdSe提供了成本和格式优势.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 半导体物理 半导体物理
背景情况:
- HgCdTe是用于红外探测器的标准.
- HgCdSe是一个潜在的替代材料.
- 开发新材料对于先进的红外探测至关重要.
研究的目的:
- 为了研究高晶质HgCdSe.Se的生长.
- 制造和描述第一个基于HgCdSe的中波红外探测器.
- 评估HgCdSe作为HgCdTe的替代品的潜力.
主要方法:
- 在GaSb (211) B基板上的分子束化 (MBE) 增长.
- 优化MBE生长参数,包括基板热清洁.
- 使用XRD对材料质量进行表征,并在77K时评估探测器性能.
主要成果:
- 实现了高质量的HgCdSe,记录XRD FWHM的~65弧秒.
- 已证明HgCdSe n型材料的少数载体寿命为~1.19 μs,移动性为~1.6 × 104 cm2/Vs.
- 制造的HgCdSe光电导体具有4.2μm的切线波长和高峰检测能力为~1.2 × 109cmHz1/2/W在77K.
结论:
- HgCdSe显示出下一代红外探测器的巨大潜力.
- 该材料在成本和大面积基板兼容性方面具有优势.
- 需要进一步优化,以匹配最先进的HgCdTe探测器的性能.
更多相关视频
12:21Close-Space Sublimation-Deposited Ultra-Thin CdSeTe/CdTe Solar Cells for Enhanced Short-Circuit Current Density and Photoluminescence
Published on: March 6, 2020
8.3K
12:08Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
Published on: July 18, 2015
10.8K
相关概念视频
01:19Gas Chromatography: Types of Detectors-II
499
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
499
01:15High-Performance Liquid Chromatography: Types of Detectors
796
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
796