Luminescence of yttrium–aluminum garnet crystals with Eu2+ impurity ions


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Abstract

Luminescence of yttrium-aluminum garnet Y3Al5O12: Eu,Si samples is studied. It is found that luminescence is associated with Eu2+ ions, but does not correspond to intracenter 4f65d1–4f7 transitions. Measurements of the excited state lifetime point to the luminescence mechanism involving charge-transfer states.

About the authors

G. R. Asatryan

Ioffe Institute

Author for correspondence.
Email: hike.asatryan@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021

A. B. Kulinkin

Ioffe Institute

Email: hike.asatryan@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021

S. P. Feofilov

Ioffe Institute

Email: hike.asatryan@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021

K. L. Hovhannesyan

Institute for Physics Research

Email: hike.asatryan@mail.ioffe.ru
Armenia, Ashtarak-2, Ashtarak, 0203

A. G. Petrosyan

Institute for Physics Research

Email: hike.asatryan@mail.ioffe.ru
Armenia, Ashtarak-2, Ashtarak, 0203

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