Energy transfers between Eu2+ and Er3+ in EuGa2S4 : Er3+статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Местоположение издательства:[Bristol, UK], England
Первая страница:8075
Последняя страница:8084
Аннотация:The photoluminescence properties of EuGa2S4:Er polycrystals under 337.1 and 976 nm laser excitations versus temperature (78-500 K) are presented. Under 337.1 nm excitation wavelength, a wide emission band corresponding to Eu2+ ions in the visible range and emission lines of Er3+ in the visible and near infrared were observed. These emissions were also observed under 976 nm excitation wavelength with a two-photon absorption accompanied by a phonon assisted energy transfer to Eu2+ ions. According to experimental conditions, energy transfers from Eu2+ to Er3+ and from Er3+ to Eu2+ are highlighted.