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Issue 4, 2014
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Formation of AgGaS2 nano-pyramids from Ag2S nanospheres through intermediate Ag2S–AgGaS2 heterostructures and AgGaS2 sensitized Mn2+ emission

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Abstract

A one-pot solution synthesis of monodisperse AgGaS2 nanocrystals with uniform pyramid-like shape is realized for the first time, in which an interesting phase and shape evolution from monodisperse Ag2S nanospheres to pure AgGaS2 nano-pyramids through an intermediate stage of Ag2S–AgGaS2 heterostructures, is revealed. Evidently, upon introducing Mn2+ ions into the reaction system, they are incorporated into AgGaS2 nano-pyramids which act as efficient sensitization matrixes for the red emission of Mn2+ d–d transition under blue excitation. Benefiting from their non-toxicity and facile fabrication, Mn:AgGaS2 nanocrystals may find potential applications in some fields such as blue chip excited LEDs and bio-labeling.

Graphical abstract: Formation of AgGaS2 nano-pyramids from Ag2S nanospheres through intermediate Ag2S–AgGaS2 heterostructures and AgGaS2 sensitized Mn2+ emission

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Article information


Submitted
06 Sep 2013
Accepted
15 Nov 2013
First published
20 Nov 2013

Nanoscale, 2014,6, 2340-2344
Article type
Paper

Formation of AgGaS2 nano-pyramids from Ag2S nanospheres through intermediate Ag2S–AgGaS2 heterostructures and AgGaS2 sensitized Mn2+ emission

F. Huang, J. Zhou, J. Xu and Y. Wang, Nanoscale, 2014, 6, 2340
DOI: 10.1039/C3NR04765B

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