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Lanthanide‐Coordinated Black Phosphorus
Author(s) -
Wu Lie,
Wang Jiahong,
Lu Jiang,
Liu Danni,
Yang Na,
Huang Hao,
Chu Paul K.,
Yu XueFeng
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201801405
Subject(s) - lanthanide , passivation , black phosphorus , materials science , lone pair , fluorescence , electron paramagnetic resonance , ion , nanotechnology , inorganic chemistry , chemistry , nuclear magnetic resonance , molecule , optoelectronics , organic chemistry , physics , layer (electronics) , quantum mechanics
Black phosphorus (BP) possesses unique physical properties and, owing to its intrinsic instability, the proper surface and chemical coordination is the key point in many applications. Herein, a facile and efficient surface lanthanide‐coordination strategy based on lanthanide (Ln) sulfonate complexes is designed to passivate and functionalize different BP‐based nanostructures including quantum dots, nanosheets, and microflakes. By means of Ln–P coordination, the lone‐pair electrons of phosphorus are occupied, thus preventing oxidation of BP, and the LnL 3 @BP exhibits excellent stability in both air and water. Furthermore, accompanied by the original photothermal performance of BP nanostructures, the Gd‐coordinated BP has high R 1 relativities in magnetic resonance (MR) imaging, and other Ln (Tb, Eu, and Nd) coordinated BP structures exhibit fluorescence spanning the visible to near‐infrared regions. Not only is LnL 3 surface passivation an efficient method to enhance the stability of BP, but also the MR or fluorescence derived from lanthanide ions extends the application of BP to optoelectronics and biomedical engineering.