用于红外光子学的低损耗硒基相变材料

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2024-09-13 DOI:10.1016/j.optmat.2024.116117

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引用次数: 0

摘要

本研究介绍了通过真空热沉积获得的 Ge2Sb2Se4Te1、Sb2Se3 和 Bi2Se3 样品的光学和传输特性、相变热、X 射线衍射和拉曼光谱的综合研究结果。我们发现，在波长为 500-1800 纳米的光谱范围内，折射率和消光系数的对比度很高，在波长为 500-3000 纳米的光谱范围内，透射率和反射率的对比度也很高。所研究的材料在大部分红外光谱范围内都显示出较低的光学损耗和较高的性能指标。通过 XRD 和拉曼方法分析了结构特性的变化。热重计和差示扫描量热法描述了相变的特征。

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Low-loss Se-based phase-change materials for infrared photonics

The work presents the results of comprehensive studies of the optical and transport properties, phase transition heats, the X-Ray diffraction and Raman spectra of Ge₂Sb₂Se₄Te₁, Sb₂Se₃ and Bi₂Se₃ samples obtained by vacuum thermal deposition. We demonstrate a high contrast in the refractive index and extinction coefficient in the spectral range in wavelengths of 500–1800 nm and transmissivity and reflectivity spectra in the range in wavelengths of 500–3000 nm. The investigated materials show low optical losses and high figure of merit in much of the IR-spectrum. Changes in structural properties are analyzed by XRD and Raman methods. Features of phase transformations are described by thermogravimetry and differential scanning calorimetry.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.