Editorial Feature

Thermal Properties of Chalcogenide Glass After Addition of Silver

Chalcogenide glass is widely used today in a number of specialist optics applications. Recent experiments with adding silver to the glass-forming materials that make chalcogenide glass have revealed that this technique can impart useful properties such as a low temperature of glass transition and increased hardness.

图片来源:Noprati Somchit/shutterstock.com

什么是粉红色的玻璃?

硫代剂玻璃是一种玻璃,其中包含一个或多个称为玉米胶的元素。这种类型的玻璃中的分子已共价键合在一起,并且该材料可以归类为共价网络固体。

chalcogen元素在元素周期表中的第16组中。它们包括硫(S),硒(SE)和柜(TE)。玉米胶与形成材料网络(例如硅(SI),砷(AS),锗(GE),磷(P)和锑(SB)等材料网络的元素结合使用,以制造硫剂元素玻璃。

Polonium (Po) is also a chalcogen. However, it is not commonly used for manufacturing chalcogenide glass due to its strong radioactivity, which makes it unsafe to handle.

硫代基因材料的行为与氧化物亚博网站下载的行为不同,这主要是因为它们的较低带隙。这有助于不同的光学和电气性能,使现代电动和信息技术制造商高度追捧这些材料。亚博网站下载

通常基于硫基于硫的葡萄干玻璃,例如AS-S(砷和硫)或Ge-S(锗和硫)。

所有葡萄干材料材料都是强玻璃板。亚博网站下载他们在大浓度形成区域内制作眼镜。随着其成分元件的摩尔重量的增加,粉红元化材料的玻璃形成能力会降低。亚博网站下载这意味着基于硫基的硫化剂最适合形成玻璃,其次是硒,然后是柜子。

如今,信息技术领域广泛使用了葡萄干剂玻璃化合物。可重写的光盘和相位变换内存设备使用该材料的独特光学特性来有效工作。

这些应用依赖于葡萄干剂玻璃的独特热特性。随着施加温度的变化,材料在无定形(玻璃)状态和结晶状态之间切换。亚博网站下载相位修改的能力用于重写内存,物理地改变了存储数据的材料的结构。

甲状腺素玻璃杯还表现出高折射率,低声子能量和高非线性。所有这些独特的特征使材料非常适合光学应用。

What is Chalcogenide Glass Used For?

Chalcogenide glasses on integrated waveguide platforms at the telecommunications wavelength have been successfully employed in the advance of nonlinear all-optical signal processing. This technology has the potential to rapidly speed up data transfer and ultimately make the connected world work better.

到目前为止,砷和硫酸或硒基的葡萄干剂已经在这些应用中使用了最大的用途。作为2s3and As2se3由于建立了专门的合成方法,因此已广泛用于光学应用。

图片来源:luchschenf/shutterstock.com

The difficulty of designing new methods to synthesize different types of chalcogenides is the main barrier to further study of this class of useful glass-forming materials. However, recent studies have begun to break this barrier down.

什么是GESB玻璃?

在frared detectors, moldable infrared optics like lenses, and flexible optics like infrared optical fibers are all suitable applications for GeSbS chalcogenide glass. The main advantage in these applications, as mentioned above, is the materials’ capacity for transmitting across a wide range of the infrared electromagnetic spectrum.

GESB等高折射率,低声子能量和高葡萄球菌玻璃的高非线性也使其非常适合用于激光,平面光学元件,光子集成电路和其他活动设备。它们也可以用稀土元素离子掺杂,以进一步改善和完善这些特征。

Chalcogenide glass is made with germanium, antinomy, and sulfur molecules. Combining these materials makes a stable ternary glass product with a wide range of possible compositions.

GeSbS chalcogenide glass is known for its striking nonlinear optical properties. These glasses show only negligible nonlinear losses at around 1.5 microns (μm).

GESBS眼镜还显示出12μm和25μm的光学透明度。这是一个相对较宽的光学透明度窗口,它使GESBS眼镜非常适合在光学元件(线性和非线性)中的长波或中波到长波红外(IR)应用。

掺杂银的GESB玻璃的性质

最近的两项研究用掺杂银的GESB玻璃实验。这些研究的结果表明,银可以用作葡萄干剂玻璃的掺杂剂,并且在完成后将其赋予玻璃的有用特性。

当添加白银时,玻璃的材料硬度大幅增加了26%。这是由于银填充玻璃结构中的微小腔。

最近的另一项研究发现,用银掺杂的玻璃的玻璃过渡温度较低。玻璃过渡是在刚性和更灵活状态之间切换的无定形(玻璃)区域的温度。玻璃过渡的较低温度意味着材料更灵活,更稳定。

These studies together show that chalcogenide glass doped with silver is harder, but also viscous at a lower temperature. Flexible nonlinear optics applications can make use of these discoveries by exploring how silver doping can improve the technology.

References and Further Reading

Fraenkl, M. (2018). How silver influences the structure and physical properties of chalcogenide glass (GeS250(SB2s350。”非晶体固体杂志。可用网址:https://doi.org/10.1016/j.jnoncrysol.2018.07.046

Musgraves,J.D。,S.Danto和K.Richardson(2014)。“硫化剂玻璃的热性质。”在葡萄干剂玻璃:制备,特性和应用Woodhead Publishing。可用网址:https://doi.org/10.1533/9780857093561.1.82

Shrivastava,A。(2018)。“玻璃过渡和融化温度。”在塑料工程简介William Andrew。可用网址:https://doi.org/10.1016/c2014-0-03688-x

Včeláková, M., P. Košťál, and P. Honcová (2021). “Effect of silver addition on thermal properties of (GeS250(SB2s350玻璃。”University of Pardubice。可用网址:https://hdl.handle.net/10195/78450

Won Choi,J。等。((2016). “Nonlinear characterization of GeSbS chalcogenide glass waveguides.”scientific Reports。可用网址:https://doi.org/10.1038/srep39234

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Ben Pilkington

Written by

Ben Pilkington

Ben Pilkington is a freelance writer who is interested in society and technology. He enjoys learning how the latest scientific developments can affect us and imagining what will be possible in the future. Since completing graduate studies at Oxford University in 2016, Ben has reported on developments in computer software, the UK technology industry, digital rights and privacy, industrial automation, IoT, AI, additive manufacturing, sustainability, and clean technology.

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