Electron injection from graphene quantum dots to poly(amido amine) dendrimers

被引：4
|
作者：
Lin, T. N. [1 ,2 ]
Inciong, M. R. [1 ,2 ]
Santiago, S. R. [1 ,2 ]
Kao, C. W. [3 ]
Shu, G. W. [1 ,2 ]
Yuan, C. T. [1 ,2 ]
Shen, J. L. [1 ,2 ]
Yeh, J. M. [4 ,5 ]
Chen-Yang, Y. W. [4 ,5 ]
机构：
[1] Chung Yuan Christian Univ, Ctr Nanotechnol, Dept Phys, Chungli 32023, Taiwan
[2] Chung Yuan Christian Univ, Ctr Biomed Technol, Chungli 32023, Taiwan
[3] Chung Yuan Christian Univ, Master Program Nanotechnol, Chungli 32023, Taiwan
[4] Chung Yuan Christian Univ, Ctr Nanotechnol, Dept Chem, Chungli 32023, Taiwan
[5] Chung Yuan Christian Univ, Ctr Biomed Technol, Chungli 32023, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 16期
关键词：
CARBON DOTS; PHOTOLUMINESCENCE; FLUORESCENCE; PAMAM; ENHANCEMENT; EMISSION; STATE;
D O I：
10.1063/1.4947275
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The steady-state and time-resolved photoluminescence (PL) are used to study the electron injection from graphene quantum dots (GQDs) to poly(amido amine) (PAMAM) dendrimers. The PL is enhanced by depositing GQDs on the surfaces of the PAMAM dendrimers. The maximum enhancement of PL with a factor of 10.9 is achieved at a GQD concentration of 0.9mg/ml. The dynamics of PL in the GQD/PAMAM composite are analyzed, evidencing the existence of electron injection. On the basis of Kelvin probe measurements, the electron injection from the GQDs to the PAMAM dendrimers is accounted for by the work function difference between them. Published by AIP Publishing.
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收藏
页数：4
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