Photoluminescence of micropowders of europium-doped cubic boron nitride

E. M. Shishonok, S. V. Leonchik, A. Braud, J. W. Steeds, O. R. Abdullaev, A. S. Yakunin, D. M. Zhigunov

Результат исследований: Вклад в журналСтатьярецензирование

3 Цитирования (Scopus)

Аннотация

Micropowders of cubic boron nitride (cBN) doped with europium have been obtained by high-pressure synthesis. The photoluminescence (PL) of Eu 3+ ions introduced into the crystal lattice of cBN has been investigated. It has been established from kinetic studies of the PL that the Eu3+ ions in cBN are located in two crystallographic positions with low symmetry of the crystal field. Annealing the cBN micropowders increases the number of crystallographic positions of Eu3+ in cBN to four, while electron irradiation causes the PL intensity of the Eu3 ions to increase as a consequence of energy transport from the RC luminescent radiation centers. It has been established that, in an optoelectronic device, the UV electroluminescence of the InGaN/AlGaN/GaN heterostructure excites red PL of the Eu:cBN phosphor.

Язык оригиналаАнглийский
Страницы (с-по)788-795
Число страниц8
ЖурналJournal of Optical Technology (A Translation of Opticheskii Zhurnal)
Том77
Номер выпуска12
DOI
СостояниеОпубликовано - дек. 2010
Опубликовано для внешнего пользованияДа

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