ЖАРЫҚДИОДТАРДА ҚОЛДАНУ ҮШІН Y3 ALXGA5-XO12: CE ЛЮМИНОФОРЛАРЫНЫҢ ОПТИКАЛЫҚ ҚАСИЕТТЕРІНЕ AL/GA ҚАТЫНАСЫНЫҢ ӘСЕРІ

Радиациялық әдіспен алғаш рет синтезделген Y₃ Alx Ga_5-xO :Ce (YAGG:Ce) керамикалық люминофорларының зерттеу нәтижелері ұсынылған. Жарық диодты жарық көздерінде қолдануға перспективалы Ce³⁺ иондарымен легирленген Y₃ Al_x Ga_5-xO₁₂:Ce (YAGG:Ce) гранаттары негізіндегі люминофорлардың оптикалық сипаттамаларына Al/Ga қатынасының әсері зерттелді. Белсендіруші Ce³⁺ иондарыныың концентрациясы тұрақты болған жағдайда, алюминий мен галлий мөлшері әртүрлі үлгілердің қоздыру және фотолюминесценция спектрлері талданды. Құрамның өзгеруі қоздыру және сәуле шығару жолақтарының орны мен пішінінің қайта құрылуына, фотолюминесценция жолақтарының енінің өзгеруіне, сондай-ақ спектрдің ультракүлгін және көк аймақтарында қоздыру кезінде сәуле шығару қарқындылығының қайта бөлінуіне алып келетіні көрсетілді. Al/Ga қатынасы азайған кезде қоздыру жолағының 340-370 нм маңындағы ұзын толқынды аймаққа ығысатыны анықталды, бұл жақын ультракүлгін және күлгін диапазондағы жарықдиодтарды қолдану кезінде қоздыру тиімділігін арттырады. Алынған нәтижелер радиацияық әдісті тиімді YAGG:Ce люминофорларын синтездеу үшін қолдануға болатындығын растайды.

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