Heping Zhao, Yuewei Li, Chao Mi, Yingzhu Zi, Xue Bai, Asif Ali Haider, Yangke Cun, Anjun Huang, Yue Liu, Jianbei Qiu, Zhiguo Song, Jiayan Liao, Ji Zhou, Zhengwen Yang
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引用次数: 0
摘要
光致变色玻璃在三维光学信息加密和存储应用方面前景广阔。通过光照射形成银纳米团簇是光致变色玻璃研究领域的一项重大进展。然而,将这种方法扩展到其他金属纳米团簇仍然是一个挑战。在本研究中,我们提出了一种开创性的方法,用于制造在近红外光谱和可见光谱中都能可靠调节双模发光的光致变色玻璃。这是通过利用双金属铋簇来实现的,从而产生了一种独特而新颖的光致变色玻璃。当稀土掺杂的铋基玻璃受到 473 纳米激光照射时,其颜色会从黄色转变为红色,并伴有可见光和宽近红外发光。这一现象归因于激光诱导(Bi+、Bi0)纳米团簇的形成。我们通过交替照射 473 纳米激光和热刺激,实现了对这些纳米团簇的近红外发光和可见稀土发光的可逆操纵。信息图案可以在玻璃表面或三维空间中刻写和擦除,并通过调节可见光和近红外发光实现读出。这项研究为设计具有广泛近红外发光特性的光致变色玻璃介绍了一种开创性的策略,它在大容量信息加密、光学数据存储、光通信和近红外成像等领域具有巨大的应用潜力。对 Bi 中双金属团簇形成的探索,是对开发具有增强光学功能和多种应用的多功能玻璃系统的重要贡献。
NIR regeneration and visible luminescence modification in photochromic glass: A novel encryption and 3D optical storage medium
Photochromic glass shows great promise for 3D optical information encryption and storage applications. The formation of Ag nanoclusters by light irradiation has been a significant development in the field of photochromic glass research. However, extending this approach to other metal nanoclusters remains a challenge. In this study, we present a pioneering method for crafting photochromic glass with reliably adjustable dual-mode luminescence in both the NIR and visible spectra. This was achieved by leveraging bimetallic clusters of bismuth, resulting in a distinct and novel photochromic glass. When rare-earth-doped, bismuth-based glass is irradiated with a 473 nm laser, and it undergoes a color transformation from yellow to red, accompanied by visible and broad NIR luminescence. This phenomenon is attributed to the formation of laser-induced (Bi+, Bi0) nanoclusters. We achieved reversible manipulation of the NIR luminescence of these nanoclusters and visible rare-earth luminescence by alternating exposure to a 473 nm laser and thermal stimulation. Information patterns can be inscribed and erased on a glass surface or in 3D space, and the readout is enabled by modulating visible and NIR luminescence. This study introduces a pioneering strategy for designing photochromic glasses with extensive NIR luminescence and significant potential for applications in high-capacity information encryption, optical data storage, optical communication, and NIR imaging. The exploration of bimetallic cluster formation in Bi represents a vital contribution to the advancement of multifunctional glass systems with augmented optical functionalities and versatile applications.
期刊介绍:
InfoMat, an interdisciplinary and open-access journal, caters to the growing scientific interest in novel materials with unique electrical, optical, and magnetic properties, focusing on their applications in the rapid advancement of information technology. The journal serves as a high-quality platform for researchers across diverse scientific areas to share their findings, critical opinions, and foster collaboration between the materials science and information technology communities.