Room-temperature fluorination of layered rare-earth hydroxide nanosheets leading to fluoride nanocrystals and elucidation of down-/up-conversion photoluminescence
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- 作者：Jing Lia ; b ; Ji-Guang Lia ; b ; LI.Jiguang@nims.go.jp" class="auth_mail" title="E-mail the corresponding author ; Qi Zhua ; Xudong Suna ; c
- 关键词：Room-temperature fluorination ; Layered rare-earth hydroxide ; NH4RE3F10 ; NH4RE2F7 ; REF3 ; Photoluminescence
- 刊名：Materials & Design
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：112
- 期：Complete
- 页码：207-216
- 全文大小：2234 K
文摘
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Fluorination of LREH-NO3− nanosheets with NH4F has led to four types of rare-earth fluorides.
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Chemical composition of the product is dependent on the NH4F/RE molar ratio used for fluorination.
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Calcining ammonium fluorolanthanate at 450 °C produces REF3 nanocrystals.
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Luminescence of the fluorides has been correlated with crystal structure and chemical bonding.