Designing stimuli-responsive and color-tunable indicators the coexistence of dual emitting centers

• Published in: Materials chemistry frontiers 2023-01, Vol.7 (3), p.535-544
• Main Authors: Wang, Tengyue, Du, Jiaren, Wang, Xiaomeng, Jiang, Kai, Wang, Panqin, Lyu, Shaoxing, Lin, Hengwei
• Format: Article
• ISSN: 2052-1537
• DOI: 10.1039/d2qm01105k

Rare earth-doped luminescent materials have been widely applied in various fields, both in scientific research and practical applications. Recently, motivated by the demand for advanced smart platforms with multicolor and stimuli-responsiveness properties, the design of a single matrix containing a variety of emitting centers has become a trend in the development of luminescent materials. In this study, the design of a smart platform upon the combination of trivalent bismuth and lanthanides ions (Ln 3+ ) in a LuNbO 4 fergusonite-type matrix is reported. Importantly, it is found that such Bi 3+ /Ln 3+ co-activated niobates exhibit multiple stimuli-responsiveness and noteworthy color-tunability. Lastly, we demonstrate the possible application of color-changeable indicators for information readouts via luminescent inks using LuNbO 4 :Bi 3+ /Ln 3+ . This work not only offers guidance for developing color tunable and stimuli-responsive inorganic luminescent materials, but also presents great promise in fields from information security, anticounterfeiting, and optical sensing to smart platforms and beyond. Color-changeable indicators for information readouts upon the combination of trivalent bismuth and lanthanides ions.