石墨烯
量子点
材料科学
生物传感器
纳米技术
氧化物
光致发光
石墨烯量子点
电导率
石墨烯纳米带
碳量子点
光电子学
化学
物理化学
冶金
作者
Xiangyu Tan,Fangrong Zhou,Wenyun Li,Gang Ao,Xiaowei Xu,Le Yang
出处
期刊:Coatings
[MDPI AG]
日期:2023-11-16
卷期号:13 (11): 1956-1956
标识
DOI:10.3390/coatings13111956
摘要
Graphene quantum dots (GQDs) are sets of carbon quantum dots derived from graphene or graphene oxide, and they have obvious graphene lattice properties. The number of layers in GQDs is generally no more than five layers, and the diameter size of GQDs is generally less than 10 nm. GQDs have stable photoluminescence characteristics, high specific surface areas, high conductivity levels and adjustable band gaps, and they can be used in sensing systems such as ion detection sensing, optical biosensing, electrochemical biosensing and electronic sensing. Based on the research status of GQDs in recent years and the application background of sensing systems, this review paper focuses on the synthesis strategies, sizes, chemical compositions, crystal structures, optical properties and sensor applications of GQDs.
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