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

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 heterostruct...

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Bibliographic Details
Published inNanoscale Vol. 6; no. 4; p. 2340
Main Authors Huang, Feng, Zhou, Jiangcong, Xu, Ju, Wang, Yuansheng
Format Journal Article
LanguageEnglish
Published England 01.01.2014
Subjects
Gadolinium - chemistry
Manganese - chemistry
Nanospheres - chemistry
Nanospheres - ultrastructure
Silver Compounds - chemistry
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Summary: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 Mn(2+) ions into the reaction system, they are incorporated into AgGaS2 nano-pyramids which act as efficient sensitization matrixes for the red emission of Mn(2+) 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.
ISSN:2040-3364
2040-3372
DOI:10.1039/c3nr04765b