JMP  Vol.3 No.8 , August 2012
Photoluminescence Compounds ZnGa2Se4 and ZnGa2Se4: Eu2+
ABSTRACT
Photoluminescence (PL) spectra measurements have been carried out in the ternary chalcopyrite semiconductor compounds ZnGa2Se42Se4: Eu2+ using single-wavelength excitation of a Hg lamp with λ = 365 and 375 nm. Measurements were performed at the temperature range of (120 ~ 220 K) and (110 ~ 230 K) for ZnGa2Se4 and ZnGa2Se4:Eu2+, respectively. No PL was observed for both crystals at the temperatures higher than 220 K (ZnGa2Se4) and 230 K (ZnGa2Se4:Eu2+). At temperatures lower than ~220 K and ~230 K one and three lines were observed for ZnGa2Se4 and ZnGa2Se4: Eu at 591 nm and 566, 591, 646 nm, respectively. 566 nm line was assigned as due of the 4f65d→ 4f7 (8S7/2) transition of Eu2+ ions, whereas the rest two lines were attributed to the donor-acceptor recombination pairs. Probability of non-radiation transfers (A = 108 ~109 s-1), energy of optical phonons (hω= 25 ~ 30 meV), Huan Rice parameter (S = 8 ~ 10), energy of thermal quenching (△E = 0.02 ~ 0.06 eV) were determined from the tem-perature dependences of the full width at half maximum (FWHM = Г(T)).

Cite this paper
O. Tagiyev, S. Asadullayeva, G. Eyyubov, U. Kasumov and K. Tagiyev, "Photoluminescence Compounds ZnGa2Se4 and ZnGa2Se4: Eu2+," Journal of Modern Physics, Vol. 3 No. 8, 2012, pp. 827-830. doi: 10.4236/jmp.2012.38108.
References
[1]   H. Hahn, G. Frank, W. Klinger, A. D. St?rger and G. St?rger, “Untersuchungen über Tern?re Chalkogenide. VI. über Tern?re Chalkogenide des Aluminiums, Galliums und Indiums mit Zink, Cadmium und Quecksilber,” Zeitschrift für Anorganische und Allgemeine Chemie, Vol. 279, No. 5-6, 1955, pp. 241-270. Hdoi:10.1002/zaac.19552790502

[2]   S. I. Radautsan, I. M. Tiginyanu, V. N. Fulga and Y. O. Derid, “Quasi-Continuously Distributed Traps and Pho- toluminescence in ZnGa2Se4 Single Crystals” Physica Status Solidi (a), Vol. 114, No. 1, 1989, pp. 259-263. doi:10.1002/pssa.2211140125

[3]   T. G. Kerimova and A. G. Sultanova, “Preparation, Opti- cal Absorption and Thermally Stimulated Conductivity of ZnGa2Se4,” Inorganic Materials, Vol. 38, No. 10, 2002, pp. 992-994. Hdoi:10.1023/A:1020560801480

[4]   K. R. Allakhverdiev, Z. Y. Salaeva and A. B. Orun, “Two-Photon Absorption in CdGa2 S4 and CdGa2S3.96Se0.04 Crystals,” Optics Communications, Vol. 167, 1999, pp. 95-98. Hdoi:10.1016/S0030-4018(99)00279-5

[5]   N. F. Mott and R. W. Gurney, “Electronic Processes in Ionic Crystals,” Clarendon Preess, Oxford, 1948.

[6]   V. V. Antonov-Romanovskiy, “Kinetics of Crystallo- phosphorus Photoluminescence,” Nauka, Moscow, 1966.

[7]   P. Benalloul, C. Barthou, C. Fouassier, A. N. Georgobiani, L. S. Lepnev, Y. N. Emirov, A. N. Gruzintsev, B. G. Tagiev, O. B. Tagiev and R. B. Jabbarov, “Luminescence of Eu2+ in Calcium Thiogallate,”Journal of The Electrochemical Society, Vol. 150, No. 1, 2003, pp. 62-65. doi:10.1149/1.1528945

[8]   M. R. Davolos, A. Garcia, C. Fouassier and P. Hagenmuller, “Luminescence of Eu2+ in Strontium and Barium Thiogallates,” Journal of Solid State Chemistry, Vol. 83, No. 2, 1989, pp. 316-323. Hdoi:10.1016/0022-4596(89)90181-3

[9]   P. Dorenbos, “f → d Transition Energies of Divalent Lanthanides in Inorganic Compounds,” Journal of Phy- sics: Condensed Matter, Vol. 15, No. 3, 2003, pp. 575- 594. Hdoi:10.1088/0953-8984/15/3/322

[10]   P. Dorenbos, “Energy of the first 4f7→4f65d Transition of Eu2+ in Inorganic Compounds,” Journal of Luminescence, Vol. 104, No. 4, 2003, pp. 239-260. doi:10.1016/S0022-2313(03)00078-4

[11]   K. Allakhverdiev, F. Gashimzade, T. Kerimova, T. Mitani, T. Naitou, K. Matsuishi and S. Onari, “Raman Scattering under Pressure in ZnGa2Se4,” Journal of Physics and Chemistry of Solids, Vol. 64, No. 9, 2003, pp. 1597-1601. Hdoi:10.1016/S0022-3697(03)00077-5

[12]   K. Huang and A. Rhys, “Theory of Light Absorption and Non-Radiative Transitions in F-Centres,” Proceedings of the Royal Society A, Vol. 204, No. 1078, 1950, pp. 406- 423. Hdoi:10.1098/rspa.1950.0184

[13]   A. F. Lubchenko, “Quantum Transitions in Impurity Centers of Solid States,” Naukova Dumka, Kiev, 1978.

 
 
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