Stability against crystallization and optical properties of (Ga10Ge15Te75)100-x(AgI)x ( x = 0–15 mol %) glasses

Elizaveta A. Tyurina; Aleksandr P. Velmuzhov; Maxim V. Sukhanov; Aleksandr D. Plekhovich; Diana G. Fukina; Vladimir S. Shiryaev

doi:10.17308/kcmf.2026.28/13563

Authors

Elizaveta A. Tyurina G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation
Aleksandr P. Velmuzhov G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation
Maxim V. Sukhanov G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation
Aleksandr D. Plekhovich G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation
Diana G. Fukina Lobachevsky State University of Nizhny Novgorod, 23, Gagarin aven., Nizhny Novgorod 603950, Russian Federation
Vladimir S. Shiryaev G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation

DOI:

https://doi.org/10.17308/kcmf.2026.28/13563

Keywords:

Chalcogenide glass, Germanium telluride, Silver iodide, Crystallization, Middle infrared materials

Abstract

Objectives: Germanium telluride based glasses, due to theirwide transparency range and high refractive index, are promising optical materials for the middle infrared range. The tendency of such glasses to crystallize, which limits their practical application, requires the search for new compositions and the study of their properties. The aim of this work was to investigate the stability against crystallization and optical transparency of (Ga₁₀Ge₁₅Te₇₅)_100-x(AgI)_x (x = 0–15 mol %) glasses as new materials for fiber optics.

Experimental: The glasses were analyzed using differential scanning calorimetry, scanning electron microscopy combined with X-ray spectral microanalysis, and near- and mid-infrared spectroscopy. The main goal of the work is the establishment of high stability against crystallization of the studied glasses with a silver iodide content of 5–15 mol %.

Conclusions: This makes it possible to consider such glasses as one of the most promising materials for the production of fibers with lowoptical losses in the spectral range of 4–15 μm

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Author Biographies

Elizaveta A. Tyurina, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation

Cand. Sci. (Chem.), Researcher at the Laboratory of High-Purity Chalcogenide Glasses for Mid-IR Photonics, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Science (Nizhny Novgorod, Russian Federation)
Aleksandr P. Velmuzhov, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation

Cand. Sci. (Chem.), Senior Research Fellow at the Laboratory of High-Purity Chalcogenide Glasses for Mid-IR Photonics, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Science (Nizhny Novgorod, Russian Federation)
Maxim V. Sukhanov, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation

Cand. Sci. (Chem.), Senior Research Fellow at the Laboratory of High-Purity Chalcogenide Glasses for Mid-IR Photonics, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Science (Nizhny Novgorod, Russian Federation)
Aleksandr D. Plekhovich, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation

Cand. Sci. (Chem.), Senior Research Fellow at the Laboratory of High-Purity Chalcogenide Glasses for Mid-IR Photonics, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Science (Nizhny Novgorod, Russian Federation)
Diana G. Fukina, Lobachevsky State University of Nizhny Novgorod, 23, Gagarin aven., Nizhny Novgorod 603950, Russian Federation

к. х. н., с. н. с. лаборатории неорганических материалов Нижегородского государственного университета им. Н. И. Лобачевского (Нижний Новгород, Российская Федерация)
Vladimir S. Shiryaev, G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49, Tropinin st., Nizhny Novgorod 603951, Russian Federation

Dr. Sci. (Chem.), Deputy Director for Research, G. G. Devyatykh Institute of Chemistry of High- Purity Substances of the Russian Academy of Science (Nizhny Novgorod, Russian Federation)

References

1. Conseil C., Bastien J.-C., Boussard-Plédel C., … Bureau B. Te-based chalcohalide glasses for far-infrared optical fiber. Optical Materials Express. 2012;2(11): 1470–1477. https://doi.org/10.1364/OME.2.001470

2. Le Coq D., Cui S., Boussard-Pledel C., … Bureau B. Telluride glasses with far-infrared transmission up to 35 μm. Optical Materials. 2017;72: 809–812. https://doi.org/10.1016/j.optmat.2017.07.038

3. Gu J., Shen X., Jia G., Xia K. Optical properties of Ge-Ga-Ag-Te high refractive index chalcogenide glasses. Optical Materials Express. 2023;13(5): 1320–1327. https://doi.org/10.1364/OME.484948

4. Cui S., Boussard-Plédel C., Lucas J., Bureau B. Tebased glass fiber for far-infrared biochemical sensing up to 16 μm. Optics Express. 2014;22(18): 21253–21262. https://doi.org/10.1364/OE.22.021253

5. Shiryaev V. S, Velmuzhov A. P., Kotereva T. V., … Karaksina E. V. Recent achievements in development of chalcogenide optical fibers for mid-IR sensing. Fibers. 2023;11: 54. https://doi.org/10.3390/fib11060054

6. Kotsuyama T., Matsumura H. Light transmission characteristics of telluridebased chalcogenide glass for infrared fiber application. Journal of Applied Physics. 1994;75: 2743. https://doi.org/10.1063/1.356210

7. Bureau В., Maurugeon S., Charpentier F., … Zhang X.‑H. Chalcogenide glass fibers for infrared sensing and space optics. Fiber and Integrated Optics. 2009;28: 65–80. https://doi.org/10.1080/01468030802272542

8. Zhang S., Zhang X., Barillot M., … Parent G. Purification of Te75Ga10Ge15 glass for far infrared transmitting optics for space application. Optical Materials. 2010;32: 1055–1059. https://doi.org/10.1016/j.optmat.2010.02.030

9. Savage J. A. Glass formation and D.S.C. data in the Ge–Te and As–Te memory glass systems. Journal of Non-Crystalline Solids. 1972;11(2): 121–130. https://doi.org/10.1016/0022-3093(72)90294-3

10. Shiryaev V. S., Velmuzhov A. P., Churbanov M. F., … Plotnichenko V. G. Preparation and investigation of high purity Ge–Te–AgI glasses for optical application. Journal of Non-Crystalline Solids. 2013;377: 1–7. http://dx.doi.org/10.1016/j.jnoncrysol.2013.03.039

11. Wang X., Nie Q., Wang G., … Ma H., Investigations of Ge–Te–AgI chalcogenide glass for far-infrared application. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2012;86: 586–589. http://dx.doi.org/10.1016/j.saa.2011.11.018

12. Lucas P., Boussard-Pledel C., Wilhelm A., … Bureau B. The development of advanced optical fibers for long-wave infrared transmission. Fibers. 2013;1: 110–118. https://doi.org/10.3390/fib1030110

13. Velmuzhov A. P., Tyurina E. A., Sukhanov M. V., … Shiryaev V. S. First <1dB/m optical loss fiber based on germanium telluride glasses. Optics and Laser Technology. 2025; 192: 113727. https://doi.org/10.1016/j.optlastec.2025.113727

14. Upadhyay M., Murugavel S. Correlation between crystallization, electrical switching and local atomic structure of Ge-Te glasses. Journal of Non-Crystalline Solids. 2013; 368: 34–39. http://dx.doi.org/10.1016/j.jnoncrysol.2013.02.028

15. Cheng C., Wang X., Xu T., … Chen. W. Optical properties of Ag- and AgI-doped Ge–Ga–Te far-infrared chalcogenide glasses. Infrared Physics & Technology. 2016;76: 698–703. https://doi.org/10.1016/j.infrared.2016.04.035

16. Zhu E., Wu B,, Zhao X., … Tian P. Surface crystallization behavior and physical properties of (GeTe4)85(AgI)15 chalcogenide glass. Infrared Physics & Technology. 2017;86: 135–138. https://doi.org/10.1016/j.infrared.2017.09.006

17. Velmuzhov A. P., Sukhanov M. V., Churbanov M. F., … Kirillov Yu. P. Behavior of hydroxyl groups in quartz glass during heat treatment in the range 750–950 °C. Inorganic Materials. 2018;54(9): 925–930. https://doi.org/10.1134/S0020168518090169

18. Hruby A. Evaluation of glass-forming tendency by means of DTA. Czechoslovak Journal of Physics. 1972; 22(11): 1187–1193. https://doi.org/10.1007/BF01690134

19. Snopatin G. E., Shiryaev V. S., Plotnichenko V. G., … Churbanov M. F. High-purity chalcogenide glasses for fiber optics. Inorganic Materials. 2009;45(13): 1439–1460. https://doi.org/10.1134/S0020168509130019

20. Tanaka K. Have we understood the optical absorption edge in chalcogenide glasses? Journal of Non-Crystalline Solids. 2016;431: 21–24. https://doi.org/10.1016/j.jnoncrysol.2015.03.006

21. Seddon A. B., Hemingway M. A. Thermal properties of chalcogenide-halide glasses in the system: Ge-S-I. J. Thermal Analysis. 1991;37: 2189–2203. https://doi.org/10.1007/BF01905586

22. Bartenev G. M. Structure and mechanical properties of inorganic glasses*. Moscow: Stroyizdat Publ.; 1996. 216 p. (in Russ.)

23. Sen S., Mason J. K. Topological constraint theory for network glasses and glass-forming liquids: a rigid polytope approach. Frontiers in Materials. 2019; 6. https://doi.org/10.3389/fmats.2019.00213

24. Bouzid A., Pham T.-L., Chaker Z., … Ori. G. Quantitative assessment of the structure of Ge20Te73I7 chalcohalide glass by first-principles molecular dynamics. Physical Review B. 2021;103: 094204. https://doi.org/10.1103/PhysRevB.103.094204

25. Jovari P., Kaban I., Bureau B., … Zajac D.A. Structure of Te-rich Te–Ge–X (X = I, Se, Ga) glasses. Journal of Physics: Condensed Matter. 2010;22: 404207. https://doi.org/10.1088/0953-8984/22/40/404207

26. Chaker Z., Ori G., Boero M., Massobrio C. Firstprinciples study of the atomic structure of glassy Ga10Ge15Te75. Journal of Non-Crystalline Solids. 2018;498: 338–344. https://doi.org/10.1016/j.jnoncrysol.2018.03.039

27. Salmon P. S, Liu J. The coordination environment of Ag and Cu in ternary chalcogenide glasses. Journal of Non-Crystalline Solids. 1996; 205–207: 172–175. https://doi.org/10.1016/S0022-3093(96)00225-6

28. Scholze H. Glass nature, structure, and properties. New York: Springer Verlag; 1991. 454 p.

29. Larmagnac J. P., Grenet J., Michon P. Glass transition temperature dependence on heating rate and on ageing for amorphous selenium films. Journal of Non-Crystalline Solids. 1981;45: 157–168. https://doi.org/10.1016/0022-3093(81)90184-8

30. Moynihan C. T., Easteal A. J., Wilder J., Tucker J. Dependence of the glass transition temperature on heating and cooling rate. The Journal of Physical Chemistry. 1974;78(26): 2673–2677. https://doi.org/10.1021/j100619a008

31. Sun J., Nie Q., Wang X., … Ma H. Structural investigation of Te-based chalcogenide glasses using Raman spectroscopy. Infrared Physics & Technology. 2012;55: 316–319. https://doi.org/10.1016/j.infrared.2012.03.003

32. Luo Y.-R. Comprehensive handbook of chemical bond energies. CRC Press; 2007. 1688 p. https://doi.org/10.1201/9781420007282

33. Velmuzhov A. P., Tyurina E. A., Sukhanov M. V., … Shiryaev V. S.. Effect of AgI and Te/Ge ratio on the properties of glasses in the Ge–Te–AgI system. Optical Materials. 2026; 169: 117626. https://doi.org/10.1016/j.optmat.2025.117626

34. Barin I. Thermochemical data of pure substances. Weinheim, New York: VCH; 1995. 1885 p. https://doi.org/10.1002/9783527619825

35. Harris C. M., Piersol A. G. Harris’ shock and vibration handbook. McGraw-Hill; 2002. 1456 p.

36. Cohen E. R., Cvitas T., Frey F. G., …, Thor A. J. Units and symbols in physical chemistry. London: Royal Society of Chemistry; 2007. 235 p.

37. Wang F., Boolchand P., Jackson K. A., Micoulaut M. Chemical alloying and light-induced collapse of intermediate phases in chalcohalide glasses. Journal of Physics: Condensed Matter. 2007;19: 226201. https://doi.org/10.1088/0953-8984/19/22/226201

38. Holomb R., Mitsa V., Johansson P. Localized states model of GeS2 glasses based on electronic states of GenSm clusters calculated by using TD-DFT. Journal of Optoelectronics and Advanced Materials. 2005;7(4): 1881–1888.

39. Palaz S., Koc H., Mamedov A.M., Ozbay E. Topological insulators: electronic band structure and spectroscopy. IOP Conference Series: Materials Science and Engineering. 2017;175: 012004 https://doi.org/10.1088/1757-899X/175/1/012004

40. Dhingra A., Lipatov A., Lu H., … Dowben P.A. Surface and dynamical properties of GeI2. 2D Materials. 2022;9(2): 025001. https://doi.org/10.1088/2053-1583/ac4715

41. Gordienko A. B., Zhuravlev Yu. N., Poplavnoi A. S. Electronic structure of AgCl, AgBr, and AgI. Physica Status Solidi (b). 1991;168(1): 49–156. https://doi.org/10.1002/pssb.2221680114

42. Koltashev V. V., Denker B. I., Galagan B. I., … Plotnichenko V. G. 150 mW Tb3+ doped chalcogenide glass fiber laser emitting at λ > 5 μm. Optics & Laser Technology. 2023; 161: 109233. https://doi.org/10.1016/j.optlastec.2023.109233