Issue 82, 2016

Superbroad near-infrared photoluminescence covering the second biological window achieved by bismuth-doped oxygen-deficient gadolinium oxide

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.

Graphical abstract: Superbroad near-infrared photoluminescence covering the second biological window achieved by bismuth-doped oxygen-deficient gadolinium oxide

Article information

Article type
Paper
Submitted
03 jun 2016
Accepted
02 aug 2016
First published
03 aug 2016

RSC Adv., 2016,6, 78396-78402

Superbroad near-infrared photoluminescence covering the second biological window achieved by bismuth-doped oxygen-deficient gadolinium oxide

K. Zhang, J. Hou, B. Liu, Y. Zhou, Z. Yong, L. Li, H. Sun and Y. Fang, RSC Adv., 2016, 6, 78396 DOI: 10.1039/C6RA14389J

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