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Hydrolytic-Resistance Long-Persistent Luminescence SrAl2O4:Eu2+,Dy3+ Ceramics for Optical Information Storage
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-09-18 , DOI: 10.1002/adfm.202414872 Xuedong Zhang 1, 2 , Yongfu Liu 2 , Pan Hu 2 , Yikun Zhang 2 , Yingzhu Zi 1 , Yueteng Zhang 1 , Zhengwen Yang 1 , Jun Jiang 2
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-09-18 , DOI: 10.1002/adfm.202414872 Xuedong Zhang 1, 2 , Yongfu Liu 2 , Pan Hu 2 , Yikun Zhang 2 , Yingzhu Zi 1 , Yueteng Zhang 1 , Zhengwen Yang 1 , Jun Jiang 2
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SrAl2O4:Eu2+, Dy3+ (SAED) is one of the most popular materials for information storage and night display applications because it has a wide excitation range and long afterglow duration. However improving the hydrolytic resistance of SAED remains a challenge. In this study, the SAED is presented to be the ceramic type by a solid-state reaction in a vacuum ambiance. The achieved SAED ceramic has 8200 mcd m−2 initial luminescence intensity. It can also obtain long-persistent luminescence after UV light irradiation even soaking in water for more than 30 days. This ceramic demonstrates sustained imaging capability irradiated under 365 nm UV light and X-ray, as well as erasability and reproducibility of storage by lighting and heating. These results indicate the promising applications of SAED ceramics in optical information storage and night display in complex environments. The phase evolution in the SAED ceramic is identified directly in the micromorphology for the first time based on scanning electron microscopy coupled with a cathodoluminescence system.
中文翻译：
用于光信息存储的耐水解长余辉发光SrAl2O4:Eu2+,Dy3+陶瓷
SrAl 2 O 4 :Eu 2+ , Dy 3+ (SAED) 是信息存储和夜间显示应用中最受欢迎的材料之一，因为它具有宽激发范围和长余辉持续时间。然而，提高SAED的耐水解性仍然是一个挑战。在本研究中，SAED 通过真空环境中的固态反应呈现为陶瓷类型。所获得的SAED陶瓷具有8200 mcd m -2 的初始发光强度。即使在水中浸泡30天以上，经紫外光照射也能获得长余辉发光。这种陶瓷在 365 nm 紫外线和 X 射线照射下表现出持续成像能力，以及通过照明和加热实现存储的可擦除性和再现性。这些结果表明SAED陶瓷在复杂环境下的光学信息存储和夜间显示方面具有广阔的应用前景。基于扫描电子显微镜与阴极发光系统相结合，首次在微观形态中直接识别 SAED 陶瓷的相演化。
更新日期：2024-09-22
中文翻译：
用于光信息存储的耐水解长余辉发光SrAl2O4:Eu2+,Dy3+陶瓷
SrAl 2 O 4 :Eu 2+ , Dy 3+ (SAED) 是信息存储和夜间显示应用中最受欢迎的材料之一，因为它具有宽激发范围和长余辉持续时间。然而，提高SAED的耐水解性仍然是一个挑战。在本研究中，SAED 通过真空环境中的固态反应呈现为陶瓷类型。所获得的SAED陶瓷具有8200 mcd m -2 的初始发光强度。即使在水中浸泡30天以上，经紫外光照射也能获得长余辉发光。这种陶瓷在 365 nm 紫外线和 X 射线照射下表现出持续成像能力，以及通过照明和加热实现存储的可擦除性和再现性。这些结果表明SAED陶瓷在复杂环境下的光学信息存储和夜间显示方面具有广阔的应用前景。基于扫描电子显微镜与阴极发光系统相结合，首次在微观形态中直接识别 SAED 陶瓷的相演化。
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