Formation of AgGaS2 nano-pyramids from Ag2S nanospheres through intermediate Ag2S-AgGaS2 heterostructures and AgGaS2 sensitized Mn2+ emission.
Formation of AgGaS2 nano-pyramids from Ag2S nanospheres through intermediate Ag2S-AgGaS2 heterostructures and AgGaS2 sensitized Mn2+ emission.
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DOI：
10.1039/c3nr04765b
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发表时间：
2014-01
期刊：
影响因子：
6.7
通讯作者：
F. Huang;Jiangcong Zhou;Ju Xu;Yuansheng Wang
中科院分区：
文献类型：
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作者：
F. Huang;Jiangcong Zhou;Ju Xu;Yuansheng Wang
首次实现了单分散AgGaS 2纳米晶的一锅法合成，揭示了Ag 2S-AgGaS 2异质结构从单分散Ag 2S纳米球到纯AgGaS 2纳米锥的相态和形貌演化过程.很明显，当Mn（2+）离子引入到反应体系中时，它们被并入AgGaS 2纳米金字塔中，该纳米金字塔充当在蓝色激发下Mn（2+）d-d跃迁的红色发射的有效敏化基质。Mn：AgGaS 2纳米晶具有无毒、易制备等优点，在蓝光芯片发光二极管、生物标记等领域具有潜在的应用前景。
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.