Study on preparation, microstructure and luminescent properties of Er-ZrO₂ layer

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• 作者：Hongyan WU (吴红艳)^a ; ^{whyc3w3@126.com" class="auth_mail" title="E-mail the corresponding author} ; Yin LI (李 胤)^a ; Ya WANG (王 亚)^b ; Pingze ZHANG (张平则)^b ; Weifeng RAO (饶伟峰)^a
• 关键词：double glow plasma surface alloying ; luminescent properties ; Zr-Er co-sputtering ; Er-ZrO2 layer ; rare earths
• 刊名：Journal of Rare Earths
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：34
• 期：9
• 页码：958-962
• 全文大小：1035 K

文摘

To further explore the material early-warning application of the luminescent coating, we demonstrated a new method by preparing a mixture layer of metallic erbium and oxidized zirconium (Er-ZrO₂ layer) using the double glow plasma surface alloying technology with Zr and Er co-sputtering under oxygen plasma exposure. The microstructure, composition and luminescence properties of the layers were characterized by scanning electron microscopy, X-ray diffraction, Raman and photoluminescence spectra. The dependence of the luminescence on the gradual concentration was studied. Results indicated that the contents of Zr, Er and O in the layer decreased gradually along the depth direction. The luminescence properties were concentration-dependent. X-ray diffraction analysis showed that the crystalline structure of ZrO₂ layer transferred from a mixture phase of tetragonal and monoclinic to pure monoclinic phase with the Zr-Er co-sputtering. The Raman bands of the layers depended on its local ZrO₂ crystal structures. Photoluminescence characteristics of Er-ZrO₂ layer revealed that the main emission bands were assigned to ²H_11/2→⁴I_15/2 and ⁴S_3/2→⁴I_15/2 transition under the excitation at 325 nm. The fact suggested that the plasma surface alloying is an effective method to obtain luminescent layer.