Structure and properties of Li2–2xMg2+x(MoO4)3 crystals activated by copper ions


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详细

By the low-gradient Čzochralski method, both undoped and copper ion activated Li2–2xMg2+x(MoO4)3 crystals are grown. The charge state and structural position of impurity copper ions are determined using EPR. Investigations of the luminescence properties reveal that luminescence with a maximum at λ = 520 nm is observed for Li2–2xMg2+x(MoO4)3 crystals. A decrease in the temperature increases the intensity of this luminescence. It is found that the doping of Li2–2xMg2+x(MoO4)3 crystals with copper ions also increases the luminescence intensity with a maximum at λ = 520 nm. It is supposed that cation vacancies, which provide the charge compensation when copper ions substitute for lithium ions, are responsible for the luminescence.

作者简介

A. Ryadun

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Email: spectr@niic.nsc.ru
俄罗斯联邦, Novosibirsk

V. Trifonov

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Email: spectr@niic.nsc.ru
俄罗斯联邦, Novosibirsk

V. Nadolinny

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

编辑信件的主要联系方式.
Email: spectr@niic.nsc.ru
俄罗斯联邦, Novosibirsk

A. Pavlyuk

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Email: spectr@niic.nsc.ru
俄罗斯联邦, Novosibirsk

M. Rakhmanova

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Email: spectr@niic.nsc.ru
俄罗斯联邦, Novosibirsk

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