Size Effect of Graphene Quantum Dots on Photoluminescence

被引：39
作者：
Liu, Ziyi [1 ]
Li, Fei [1 ]
Luo, Yi [1 ]
Li, Ming [1 ]
Hu, Guanghui [1 ]
Pu, Xianjuan [2 ]
Tang, Tao [1 ]
Wen, Jianfeng [1 ]
Li, Xinyu [1 ]
Li, Weitao [3 ]
机构：
[1] Guilin Univ Technol, Coll Sci, Guilin 541004, Peoples R China
[2] Shanghai Univ, Shanghai Appl Radiat Inst, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China
[3] Zhongyuan Univ Technol, Text & Garment Ind Res Inst, Zhengzhou 450007, Peoples R China
来源：
MOLECULES | 2021年 / 26卷 / 13期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
graphene quantum dots; size effect; photoluminescence; CARBON NANODOTS; SCALE SYNTHESIS; SOLAR-CELLS; EFFICIENT; PROBE; LUMINESCENCE; ENHANCEMENT; SULFUR;
D O I：
10.3390/molecules26133922
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
High-photoluminescence (PL) graphene quantum dots (GQDs) were synthesized by a simple one-pot hydrothermal process, then separated by dialysis bags of different molecular weights. Four separated GQDs of varying sizes were obtained and displayed different PL intensities. With the decreasing size of separated GQDs, the intensity of the emission peak becomes much stronger. Finally, the GQDs of the smallest size revealed the most energetic PL intensity in four separated GQDs. The PL energy of all the separated GQDs shifted slightly, supported by density functional theory calculations.
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页数：10
相关论文
共 55 条
[1]   Luminescent Carbon Nanodots: Emergent Nanolights [J].
Baker, Sheila N. ;
Baker, Gary A. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (38) :6726-6744
[2]  
Balaji M, 2018, J PHOTOCH PHOTOBIO B, V178, P371, DOI [10.1016/j.photobiol.2017.11.031, 10.1016/j.jphotobiol.2017.11.031]
[3]   PROJECTOR AUGMENTED-WAVE METHOD [J].
BLOCHL, PE .
PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979
[4]   Tunable Photoluminescence from Graphene Oxide [J].
Chien, Chih-Tao ;
Li, Shao-Sian ;
Lai, Wei-Jung ;
Yeh, Yun-Chieh ;
Chen, Hsin-An ;
Chen, I-Shen ;
Chen, Li-Chyong ;
Chen, Kuei-Hsien ;
Nemoto, Takashi ;
Isoda, Seiji ;
Chen, Mingwei ;
Fujita, Takeshi ;
Eda, Goki ;
Yamaguchi, Hisato ;
Chhowalla, Manish ;
Chen, Chun-Wei .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (27) :6662-6666
[5]   Gram-scale synthesis of single-crystalline graphene quantum dots derived from lignin biomass [J].
Ding, Zheyuan ;
Li, Fengfeng ;
Wen, Jialong ;
Wang, Xiluan ;
Sun, Runcang .
GREEN CHEMISTRY, 2018, 20 (06) :1383-1390
[6]   Application of graphene quantum dots for simultaneous fluorescence imaging and tumor-targeted drug delivery [J].
Dong, Jian ;
Wang, Kaiqi ;
Sun, Liping ;
Sun, Baoliang ;
Yang, Mingfeng ;
Chen, Hongyu ;
Wang, Yi ;
Sun, Jingyi ;
Dong, Lifeng .
SENSORS AND ACTUATORS B-CHEMICAL, 2018, 256 :616-623
[7]   Blue luminescent graphene quantum dots and graphene oxide prepared by tuning the carbonization degree of citric acid [J].
Dong, Yongqiang ;
Shao, Jingwei ;
Chen, Congqiang ;
Li, Hao ;
Wang, Ruixue ;
Chi, Yuwu ;
Lin, Xiaomei ;
Chen, Guonan .
CARBON, 2012, 50 (12) :4738-4743
[8]   One-step and high yield simultaneous preparation of single- and multi-layer graphene quantum dots from CX-72 carbon black [J].
Dong, Yongqiang ;
Chen, Congqiang ;
Zheng, Xinting ;
Gao, Lili ;
Cui, Zhiming ;
Yang, Hongbin ;
Guo, Chunxian ;
Chi, Yuwu ;
Li, Chang Ming .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (18) :8764-8766
[9]   Blue Photoluminescence from Chemically Derived Graphene Oxide [J].
Eda, Goki ;
Lin, Yun-Yue ;
Mattevi, Cecilia ;
Yamaguchi, Hisato ;
Chen, Hsin-An ;
Chen, I-Sheng ;
Chen, Chun-Wei ;
Chhowalla, Manish .
ADVANCED MATERIALS, 2010, 22 (04) :505-+
[10]   Boron- and Nitrogen-Doped Graphene Quantum Dots/Graphene Hybrid Nanoplatelets as Efficient Electrocatalysts for Oxygen Reduction [J].
Fei, Huilong ;
Ye, Ruquan ;
Ye, Gonglan ;
Gong, Yongji ;
Peng, Zhiwei ;
Fan, Xiujun ;
Samuel, Errol L. G. ;
Ajayan, Pulickel M. ;
Tour, James M. .
ACS NANO, 2014, 8 (10) :10837-10843
123456