High-temperature VUV spectroscopy of KYF4 crystals doped with Nd3+, Er3+ and Tm3+ ions
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- 作者：V.N. Makhova ; makhov@sci.lebedev.ru" class="auth_mail" title="E-mail the corresponding author ; N.M. Khaidukovb ; M. Kirmc ; S. Vielhauerc
- 关键词：5d-4f luminescence ; Thermal quenching ; Nd3+ ; Er3+ ; Tm3+ ; KYF4
- 刊名：Radiation Measurements
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：90
- 期：Complete
- 页码：298-302
- 全文大小：532 K
文摘
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Quenching temperatures of 5d-4f luminescence from Nd3+, Er3+, Tm3+ in KYF4 obtained.
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Thermal quenching for Nd3+ and Er3+ is caused by non-radiative 5d-4f transitions.
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Thermal quenching for Tm3+ is due to ionization of 5d electrons to conduction band.
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Obtained activation energy of thermal quenching of Tm3+ 5d-4f luminescence is 0.66 eV.
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The method for the estimation of energy gap ‘5d level – conduction band’ is proposed.