Arsenic triselenide explained

Arsenic triselenide is an inorganic chemical compound with the chemical formula .

Amorphous arsenic triselenide is used as a chalcogenide glass for infrared optics. When purified, it transmits light with wavelengths between ca. 0.7 and 19 μm.[1]

In arsenic triselenide, arsenic is covalently bonded to selenium, where arsenic has a formal oxidation state of +3, and selenium −2.

Solution processed thin film

Thin film selenide glasses have emerged as an important material for integrated photonics due to its high refractive index, mid-IR transparency and high non-linear optical indices. High-quality glass films can be deposited from spin coating method from ethylenediamine solutions.[2]

Notes and References

  1. 10.1016/j.jnoncrysol.2011.03.030. Fabrication of highly homogeneous As2Se3 glass under argon flow. Journal of Non-Crystalline Solids. 357. 15. 2897–2902. 2011. Guillevic. Erwan. Zhang. Xianghua. Adam. Jean-Luc. Ma. Hongli. Lucas. Jacques. Tariel. Hugues. 2011JNCS..357.2897G.
  2. Effect of annealing conditions on the physio-chemical properties of spin-coated As2Se3 chalcogenide glass films. Optical Materials Express. 2. 12. 1723. 10.1364/OME.2.001723. 2012. Zou. Yi. Lin. Hongtao. Ogbuu. Okechukwu. Li. Lan. Danto. Sylvain. Novak. Spencer. Novak. Jacklyn. Musgraves. J. David. Richardson. Kathleen. Kathleen A. Richardson . Hu. Juejun. 32070511. 2012OMExp...2.1723Z. free.

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