Preparation and reliability of wearable light-storing buttons. Issue 24 (15th December 2021)

• Record Type: Journal Article
• Authors: Chen, Yue; Zhai, Xinmeng; Shi, Mingming; Zou, Jun; Li, Yuefeng; Yang, Bobo; Guo, Chunfeng; Hu, Rongrong
• Is Part Of: Ceramics international. Volume 47:Issue 24(2021)
• Page Start: 34170
• Page End: 34181
• Publication Date: 2021-12-15
• Subjects: Light-storing button -- Continuous luminescence -- Dispensing method -- Long afterglow material -- SrAl2O4 -- Eu2+ -- Dy3+; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.08.326
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The potential for a large number of applications has stimulated the exploration of the preparation of wearable light-storing buttons. In this study, SrAl2 O4 ：Eu 2+, Dy 3+ (SROED) was used as a long-lasting phosphorescent material, mixed with unsaturated polyester resin in proportion. A light-storing button with high stability and long afterglow time is obtained by the dispensing method. The surface and cross morphology, phase structure, photoluminescence spectrum, luminescence image, afterglow performance and mechanical hardness of the luminescent button are characterized. The results show that the luminescence performance of the phosphorescent button is significantly better than that of the original luminescent material SROED after high temperature and high humidity aging, xenon lamp aging, and thermal cycling aging test. Even in this study, the afterglow life of light-storing buttons can be maintained up to 7h. The luminescence mechanism of light-storing buttons is also discussed. This result will be very beneficial for the preparation of high-quality light-storing buttons. At the same time, it also expands the application of long afterglow materials in the field of smart wearables.