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A Facile One‐step Method to Produce Graphene–CdS Quantum Dot Nanocomposites as Promising Optoelectronic Materials
Author(s) -
Cao Aoneng,
Liu Zhen,
Chu Saisai,
Wu Minghong,
Ye Zhangmei,
Cai Zhengwei,
Chang Yanli,
Wang Shufeng,
Gong Qihuang,
Liu Yuanfang
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200901920
Subject(s) - graphene , materials science , quantum dot , nanocomposite , picosecond , quantum yield , graphene quantum dot , oxide , optoelectronics , nanotechnology , fluorescence , optics , laser , physics , metallurgy
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 CdS quantum dots to the graphene sheets has been observed by time‐resolved fluorescence spectroscopy.