Photoluminescence of Ca4Ga 2 S 7 :Eu
2 + in wide excitation intensity
and temperaturerange K.O Taghiyev 3 , O.B. Taghiyev 2 , F. Kazimova 2 , M.S. Leoneyna 1 , G.P. Yablonskiy 1 , B.D. Umanov 1 and T. Sh. Ibragimova 2 1 Institutes of Physics National Academy of Science of Belarus, Belarus, 2 Institutes of Physics National Academy of Science of Azerbaijan, Azerbaijan, 3 BP P.L.C - Integrated Energy Company Photoluminescence properties of Ca4Ga 2 S 7 :Eu 2+ chalcogenide semiconductors have been studied under the impulse laser excitation in the range of 10 - 105 W/cm 2 at room temperature. This study has shown that as a result of excitation photoluminescence of Ca4Ga2S7:Eu 2+ is characterized by the emission in the interval of 450 – 575 nm with significant domination in spectra line at 660 nm. Photoluminescence of Ca4Ga 2 S 7 :Eu 2+ quenches at wavelengths of 560 nm and 660 nm with constant time frames 258 ns and 326ns, respectively. Moreover, the temperature measurements of photoluminescence were performed on the samples in the temperature range of 3. R.B. Jabbarov, C. Chartier, B.G. Tagiev, et al, Journal of Physics and Chemistry of Solids 66 (2005) 1049. 4. A.N. Georgobiani, V.V. Sturov, V.I. Tyutyunnikov et al, J. of Physics and Chemistry of Solids 64 (2003) 1519. 5. P. Benallol, B. Carlos, C. Foussier, et al, Journal of the Electrochemical Society 150 (2003) G62. 6. S.G. Asadullayeva, T.G. Naghiyev, G.A. Gafarova, Adv. Phys. Res. 2 (1) (2019) 81. 7. M.S. Leanenya, E.V. Lutsenko, V.N. Pavlovskii, G.P. Yablonskii, T.G. Nagiev, B.G.Tagiev, O.B. Tagiev, S.A. Abushev, Journal of Applied Spectroscopy 82(1) (2015) 53. 8. A.Sh. Abdinov, R.F. Babaeva, N.A. Ragimova, R.M. Rzaev, S.I. Amirova, Inorganic Materials 50 (4) (2014) 334. 9. A.Sh. Abdinov, R.F. Babaeva, R.M. Rzaev, S.I. Amirova, Inorganic Materials 48(6) (2012) 559. 10. E.M. Huseynov, T.G. Naghiyev, Advanced Physical Research 1(2) (2019) 99-104. 11. T.G. Naghiyev, International Journal of Modern Physics B 34(32) 2050318 (2020). 12. B.G. Tagiyev, O.B. Tagiyev, A.I. Mammadov, Vu Xuan Quang, T.G. Naghiyev, S.H. Jabarov, M.S. Leonenya, G.P. Yablonskii, 14. A.Sh. Abdinov, Sh.A. Allakhverdiev, R.F. Babaeva, R.M. Rzaev, Inorganic Materials 45(7) (2009) 723. 15. A.S. Abdinov, R.F. Babaeva, R.M. Rzaev, G.A. Gasanov, Inorganic Materials 40(6) (2004) 567. 16. M.S. Leanenia, E.V. Lutsenko, M.V. Rzheutski, G.P. Yablonskii, T.G. Naghiyev, H.B. Ganbarova, O.B. Tagiev, Optical Materials 54 (2016) 45. 17. M.S. Leanenia, E.V. Lutsenko, M.V. Rzheutski, V.N. Pavlovskii, G.P. Yablonskii, T.G. Naghiyev, B.G. Tagiev, S.A. Abushev, O.B. Tagiev, Doklady of the National Academy of Sciences of Belarus 59(6) (2016) 57. 18. D.T. Khan, N.T. Dang, S.H. Jabarov, T.G. Naghiyev, R.M. Rzayev, T.Q. Nguyen, H.V.Tuyen, N.T. Thanh, L.V.T. Son, Materials Research Express 7(1) (2020) 016507. 19. T.G. Naghiyev, Modern Physics Letters B 35(6) (2021) 2150104. 20. R.S. Madatov, F.G. Asadov, E.G. Asadov, T.G. Naghiyev, J. Korean Phys. Soc. 74 (2019) 508–511. N.T. Dang, Physica B: Condensed Matter 478 (2015) 58. 13. T.G. Naghiyev, J. Korean Phys. Soc. 78 (2021) 232. 10 – 300 K. References 1. X. Wu, D. Carkner, H. Hamada, I. Yoshida, SID 35(1) (2004) 1146-1149 2. B.G. Tagiev, S.A. Abushov, O.B. Tagiev, Journal of Applied Spectroscopy 77 (2010) 124
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