Influence of external factors on photoluminescence of Ca(Al<i><sub>x</sub></i>Ga<sub>1-<i>x</i></sub>)<sub>2</sub>S<sub>4</sub>:Eu<SUP>2+</SUP> solid solutions

Tagiev O. B., Asadov E. G., Tagiev K. O., Gadzhieva G. S., Naghiyev T.

SOLID STATE COMMUNICATIONS, vol.342, 2022 (SCI-Expanded) identifier identifier

  • Nəşrin Növü: Article / Article
  • Cild: 342
  • Nəşr tarixi: 2022
  • Doi nömrəsi: 10.1016/j.ssc.2021.114587
  • jurnalın adı: SOLID STATE COMMUNICATIONS
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Adres: Bəli

Qısa məlumat

The effect of gamma-irradiation, concentration of Eu2+ ions, cationic substitution of components (Ga -> Al) on photoluminescence (PL) of Ca(AlxGa1-x)(2)S-4:Eu2+ solid solutions was studied. It is shown that the PL intensity of the samples increases in two times with increasing the gamma irradiation dose (D) in the range of 0-1000 krad, as well as the PL intensity increase three times with increasing the concentration of Eu2+ ions from 3% to 7%. There are observed 44 nm blueshift in PL maxima when partial substitutions of Ga ions with Al ions, which enables efficient luminescence emission in the green-yellow region of the optical spectrum. It has been determined that observed PL emission is due to the electronic transitions of Eu2+ ions from excited 4f(6)5d levels to the ground 4f(7) level.