Efficient phase transfer of luminescent thiol-capped nanocrystals: From water to nonpolar organic solvents
Efficient phase transfer of luminescent thiol-capped nanocrystals: From water to nonpolar organic solvents
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DOI：
10.1021/nl025662w
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发表时间：
2002-08-01
期刊：
影响因子：
10.8
通讯作者：
Weller, H
中科院分区：
文献类型：
--
作者：
Gaponik, N;Talapin, DV;Weller, H
在水溶液中合成的高发光硫醇修饰的Me和HgTe纳米晶与十二硫醇进行了部分交换，并转移到不同的非极性有机溶剂中。研究发现，丙酮在纳米晶的高效相转移中起着重要作用。CdTe和HgTe纳米晶在转移到有机溶剂中后都保持了它们的发光性能，从而为可能在光伏和光电子学中应用的易加工发光材料提供了新的来源。
Highly luminescent thiol-capped Me and HgTe nanocrystals synthesized in aqueous solutions were subject to a partial exchange of capping ligands with 1-dodecanethiol and transferred into different nonpolar organic solvents. It was found that acetone plays an important role in an efficient phase transfer of the nanocrystals. Both CdTe and HgTe nanocrystals retain their luminescence properties after being transferred to organic solvents, thus providing a new source of easily processable luminescent materials for possible applications in photovoltaics and optoelectronics.