A Facile One-step Method to Produce Graphene-CdS Quantum Dot Nanocomposites as Promising Optoelectronic Materials
A Facile One-step Method to Produce Graphene-CdS Quantum Dot Nanocomposites as Promising Optoelectronic Materials
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DOI：
10.1002/adma.200901920
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发表时间：
2010-01-05
影响因子：
29.4
通讯作者：
Liu, Yuanfang
中科院分区：
文献类型：
--
作者：
Cao, Aoneng;Liu, Zhen;Liu, Yuanfang
本发明以氧化石墨烯为原料，通过一步反应合成单层石墨烯-CdS量子点纳米复合材料，避免了单层石墨烯片的低产率和团聚现象。这种新的石墨烯基材料显示出有前途的光电性能。利用时间分辨荧光光谱技术研究了超快电子从US量子点到石墨烯片的转移过程。
A single-layer graphene-CdS quantum dot nanocomposite is synthesized by a one-step reaction from graphene oxide, and thus avoids the low-yield production and the aggregation of single-layer graphene sheets. This new graphene-based material shows promising optoelectronic properties. Picosecond ultrafast electron transfer from the US quantum dots to the graphene sheets has been observed by time-resolved fluorescence spectroscopy.