Superbroad near-infrared photoluminescence covering the second biological window achieved by bismuth-doped oxygen-deficient gadolinium oxide. Issue 82 (17th August 2016)

• Record Type: Journal Article
• Authors: Zhang, Kai; Hou, Jing-Shan; Liu, Bo-Mei; Zhou, Yang; Yong, Zi-Jun; Li, Li-Na; Sun, Hong-Tao; Fang, Yong-Zheng
• Is Part Of: RSC advances. Volume 6:Issue 82(2016)
• Page Start: 78396
• Page End: 78402
• Publication Date: 2016-08-17
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra14389j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : We demonstrated that bismuth-doped oxygen-deficient gadolinium oxides, produced through a low-temperature topochemical reduction strategy using CaH2 as a solid-state reducing agent, show superbroad NIR PL covering the second biological window. Abstract : In this work, we demonstrated that bismuth-doped oxygen-deficient gadolinium oxides, produced through a low-temperature topochemical reduction strategy using CaH2 as a solid-state reducing agent, show superbroad near-infrared photoluminescence covering the second biological window. Structural analyses confirm that the topochemical reduction treatment of bismuth-doped gadolinium oxides creates oxygen vacancies in the gadolinium oxide matrix, which changes the coordination of Bi and makes it situate in a defective environment. Given the tantalizing superbroad near-infrared emission from the reduced phases, it is anticipated that this novel system may find applications for in vitro / in vivo near-infrared fluorescence imaging in the second biological window.