Time dependence of the luminescence intensity in CdBr2 : AgCl,PbBr2 crystals under N2-laser excitation at room temperature

• Autorzy: Bolesta I M , Kalivoshka B M , Karbovnyk I D , Lesivtsiv V M , Novosad I S , Novosad S S , Rovetskyy I M , Velgosh S R

Identyfikatory

DOI

10.2478/s13536-014-0232-y

• Języki publikacji: EN

Abstrakty

EN

Results of optical-luminescence studies of polydoped photochromic CdBr2 : AgCl,PbBr2 crystals are presented. It is shown that the luminescence decrease vs. time under N2-laser excitation in the range of A-band of Pb2+ absorption is due to photochemical reactions. The empirical model describing the decrease of the luminescence related to silver impurities due to photochemical processes is suggested. Model parameters (trapping cross-section – σ – and the amount of centres destroyed by irradiation – β) were determined using the comparative analysis of experimental and calculated luminescence decay curves.

Słowa kluczowe

EN

cadmium bromide; luminescence; absorption; photochemical reactions

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2014
• Tom: Vol. 32, No. 4
• Strony: 604--609
• Opis fizyczny: Bibliogr. 26 poz., wykr.

Twórcy

autor

Bolesta I M

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Kalivoshka B M

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Karbovnyk I D

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Lesivtsiv V M

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Novosad I S

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Novosad S S

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Rovetskyy I M

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

autor

Velgosh S R

• Ivan Franko National University of Lviv, 1 Universytetska str., 79000 Lviv, Ukraine

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