掺杂碳纳米颗粒作为高发光量子点的新平台
Doped Carbon Nanoparticles as a New Platform for Highly Photoluminescent Dots.
作者信息
Sun Ya-Ping, Wang Xin, Lu Fushen, Cao Li, Meziani Mohammed J, Luo Pengju G, Gu Lingrong, Veca L Monica
机构信息
Department of Chemistry and Laboratory for Emerging Materials and Technology, Clemson University, Clemson, South Carolina 29634-0973.
出版信息
J Phys Chem C Nanomater Interfaces. 2008 Nov 27;112(47):18295-18298. doi: 10.1021/jp8076485.
Abstract
There have been rapid advances in the development and applications of semiconductor quantum dots (QDs) represented by CdSe/ZnS. However, a serious limitation of these QDs is the necessary use of toxic heavy metals. It is reported here that small carbon nanoparticles doped with inorganic salts serve as a highly promising new platform for brightly photoluminescent dots. The photoluminescent carbon dots with the carbon core doped with ZnO (C(ZnO)-Dots) or ZnS (C(ZnS)-Dots) in aqueous solutions are competitive to the commercially available CdSe/ZnS QDs in luminescence brightness.
摘要
以CdSe/ZnS为代表的半导体量子点（QDs）在开发和应用方面取得了迅速进展。然而，这些量子点的一个严重局限是必须使用有毒重金属。本文报道，掺杂无机盐的小碳纳米颗粒可作为一种极具前景的新型明亮光致发光点平台。在水溶液中，碳核掺杂ZnO（C(ZnO) - 量子点）或ZnS（C(ZnS) - 量子点）的光致发光碳点在发光亮度方面可与市售CdSe/ZnS量子点相媲美。
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