Graphene quantum dots with controllable surface oxidation, tunable fluorescence and up-conversion emission

被引：360
作者：
Zhu, Shoujun [1 ]
Zhang, Junhu [1 ]
Liu, Xue [1 ]
Li, Bo [1 ]
Wang, Xingfeng [1 ]
Tang, Shijia [1 ]
Meng, Qingnan [1 ]
Li, Yunfeng [1 ]
Shi, Ce [1 ]
Hu, Rui [1 ]
Yang, Bai [1 ]
机构：
[1] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
来源：
RSC ADVANCES | 2012年 / 2卷 / 07期
基金：
美国国家科学基金会;
关键词：
LUMINESCENT CARBON NANODOTS; LOW CYTOTOXICITY; NANOPARTICLES; ROUTE; SHEETS; BRIGHT; OXIDE; SIZE;
D O I：
10.1039/c2ra20182h
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this article, graphene quantum dots (GQDs) with tunable surface chemistry (increasing oxidation degree) were prepared by an efficient two-step method. The GQDs have tunable fluorescence induced by the degree of surface oxidation, fine solubility, high stability and applicable up-conversion photoluminescence (PL). The PL mechanism was investigated based on the surface structure and PL behaviors. More importantly, the GQDs have acid-base response property and can be applied as pH sensors.
引用
收藏
页码：2717 / 2720
页数：4
相关论文
共 50 条
  • [31] Amino-functionalized graphene quantum dots: origin of tunable heterogeneous photoluminescence
    Kumar, G. Sandeep
    Roy, Rajarshi
    Sen, Dipayan
    Ghorai, Uttam Kumar
    Thapa, Ranjit
    Mazumder, Nilesh
    Saha, Subhajit
    Chattopadhyay, Kalyan K.
    NANOSCALE, 2014, 6 (06) : 3384 - 3391
  • [32] Surface Defect Passivation of Graphene Quantum Dots by Amino Functionalization and Photoluminescence Emission Enhancement
    Wang Yun-Jing
    Liu Ying-Qiu
    Gao Xiu-Xiu
    Zhan Yan-Shan
    Pan Li-Yang
    Zhang Wen-Kai
    Fang Xiao-Min
    ACTA PHYSICO-CHIMICA SINICA, 2016, 32 (10) : 2636 - 2644
  • [33] Hundredfold surface plasmon enhancement of fluorescence from up-conversion micro-nano particles emissions
    Cui, Chenyu
    Han, Kai
    Liu, Hao
    Chen, MinSun
    Cui, Wenda
    Song, Changqing
    Zhao, GuoMin
    INTERNATIONAL CONFERENCE ON OPTOELECTRONIC AND MICROELECTRONIC TECHNOLOGY AND APPLICATION, 2020, 11617
  • [34] Facile synthesis of homogeneous CuInS2 quantum dots with tunable near-infrared emission
    Qi, Kezhen
    Wang, Yu
    Wang, Ruidan
    Wu, Di
    Li, Guo-Dong
    JOURNAL OF MATERIALS CHEMISTRY C, 2016, 4 (09) : 1895 - 1899
  • [35] Surface functionality and formation mechanisms of carbon and graphene quantum dots
    Bokare, Anuja
    Nordlund, Dennis
    Melendrez, Cynthia
    Robinson, Ryan
    Keles, Ozgur
    Wolcott, Abraham
    Erogbogbo, Folarin
    DIAMOND AND RELATED MATERIALS, 2020, 110
  • [36] Carbon dots with tunable emission, controllable size and their application for sensing hypochlorous acid
    Huang, Zhaoxia
    Lin, Feng
    Hu, Ming
    Li, Chunxiang
    Xu, Ting
    Chen, Chuan
    Guo, Xiangqun
    JOURNAL OF LUMINESCENCE, 2014, 151 : 100 - 105
  • [37] Optically Tunable Amino-Functionalized Graphene Quantum Dots
    Tetsuka, Hiroyuki
    Asahi, Ryoji
    Nagoya, Akihiro
    Okamoto, Kazuo
    Tajima, Ichiro
    Ohta, Riichiro
    Okamoto, Atsuto
    ADVANCED MATERIALS, 2012, 24 (39) : 5333 - 5338
  • [38] Effect of sulfur doping on fluorescence and quantum yield of graphene quantum dots: an experimental and theoretical investigation
    Kadian, Sachin
    Manik, Gaurav
    Ashish, Kalkal
    Singh, Manjinder
    Chauhan, Rishi Pal
    NANOTECHNOLOGY, 2019, 30 (43)
  • [39] Tunable flammability studies of graphene quantum dots-based polystyrene nanocomposites using microscale combustion calorimeter
    Ma, Rong
    Shen, Ruiqing
    Quan, Yufeng
    Wang, Qingsheng
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2022, 147 (19) : 10383 - 10390
  • [40] Tunable emission properties of core-shell ZnCuInS-ZnS quantum dots with enhanced fluorescence intensity
    Ji, Yihe
    Wang, Haicheng
    Xiang, Long
    Liu, Xiaoguang
    Wei, Wei
    Ma, Ning
    Sun, Dongbai
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2018, 34 (06) : 942 - 948
12345