scholarly journals Electron Transfer Kinetics at Graphene Quantum Dot Assembly Electrodes

2019 ◽  
Vol 11 (49) ◽  
pp. 46303-46310 ◽  
Author(s):  
Marija R. Zoric ◽  
Varun Singh ◽  
Sean Warren ◽  
Samuel Plunkett ◽  
Renat R. Khatmullin ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Electron Transfer Kinetics ◽  
Graphene Quantum Dot

A graphene quantum dot decorated SrRuO3mesoporous film as an efficient counter electrode for high-performance dye-sensitized solar cells

2017 ◽  
Vol 5 (34) ◽  
pp. 17848-17855 ◽  
Author(s):  
Tao Liu ◽  
Kun Yu ◽  
Lina Gao ◽  
Hui Chen ◽  
Ning Wang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Catalytic Activity ◽  
Quantum Dot ◽  
High Performance ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Synergic Effect ◽  
Graphene Quantum Dot ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The predominant synergic effect of GQDs and SrRuO3CEs drives faster ion diffusions and electron transfer, thereby contributing to excellent catalytic activity of the SRO–GQD CE towards I3−reduction.

Solvent-Polarity Dependence of Electron-Transfer Kinetics in a CdSe/ZnS Quantum Dot−Pyromellitimide Conjugate

2009 ◽  
Vol 114 (2) ◽  
pp. 1217-1225 ◽  
Author(s):  
Shi-Cong Cui ◽  
Takashi Tachikawa ◽  
Mamoru Fujitsuka ◽  
Tetsuro Majima
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Solvent Polarity ◽  
Electron Transfer Kinetics

scholarly journals Controlling the Electron-Transfer Kinetics of Quantum-Dot Assemblies

2017 ◽  
Vol 121 (27) ◽  
pp. 14401-14412 ◽  
Author(s):  
Ruibin Liu ◽  
Brian P. Bloom ◽  
David H. Waldeck ◽  
Peng Zhang ◽  
David N. Beratan
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Electron Transfer Kinetics ◽  
Kinetics Of

Enhancing electron transport via graphene quantum dot/SnO2 composites for efficient and durable flexible perovskite photovoltaics

2019 ◽  
Vol 7 (4) ◽  
pp. 1878-1888 ◽  
Author(s):  
Yu Zhou ◽  
Sisi Yang ◽  
Xuewen Yin ◽  
Jianhua Han ◽  
Meiqian Tai ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Quantum Dot ◽  
Perovskite Solar Cells ◽  
Charge Recombination ◽  
Graphene Quantum Dot ◽  
Interfacial Charge

Low-temperature processed GQDs and SnO2 nanoparticles composites (G@SnO2) have been prepared through a facile synthetic path. Facilitated electron transfer and suppressed interfacial charge recombination enable flexible perovskite solar cells with superb efficiency and excellent durability.

scholarly journals Graphene quantum dot electrochemiluminescence increase by bio-generated H 2 O 2 and its application in direct biosensing

2020 ◽  
Vol 7 (1) ◽  
pp. 191404 ◽  
Author(s):  
Shanli Yang ◽  
Mingfu Chu ◽  
Jie Du ◽  
Yingru Li ◽  
Tao Gai ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Quantum Dot ◽  
Small Molecules ◽  
Direct Electron Transfer ◽  
High Sensitivity ◽  
Glucose Detection ◽  
Graphene Quantum Dot ◽  
One Step ◽  
Redox Centre

In this study, a novel signal-increase electrochemiluminescence (ECL) biosensor has been developed for the detection of glucose based on graphene quantum dot/glucose oxidase (GQD/GO x ) on Ti foil. The proposed GQD with excellent ECL ability is synthesized through a green one-step strategy by the electrochemical reduction of graphene oxide quantum dot. Upon the addition of glucose, GO x can catalytically oxidize glucose and the direct electron transfer between the redox centre of GO x and the modified electrode also has been realized, which results in the bio-generated H 2 O 2 for ECL signal increase in GQD and realizes the direct ECL detection of glucose. The signal-increase ECL biosensor enables glucose detection with high sensitivity reaching 5 × 10 −6 mol l −1 in a wide linear range from 5 × 10 −6 to 1.5 × 10 −3 mol l −1 . Additionally, the fabrication process of such GQD-based ECL biosensor is also suitable to other biologically produced H 2 O 2 system, suggesting the possible applications in the sensitive detection of other biologically important targets (e.g. small molecules, protein, DNA and so on).

scholarly journals Effect of thiophene S on the enhanced ORR electrocatalytic performance of sulfur-doped graphene quantum dot/reduced graphene oxide nanocomposites

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19635-19641 ◽  
Author(s):  
Fei Li ◽  
Lang Sun ◽  
Yi Luo ◽  
Ming Li ◽  
Yongjie Xu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Graphene Oxide ◽  
Quantum Dot ◽  
Reduced Graphene Oxide ◽  
Graphene Quantum Dots ◽  
Graphene Quantum Dot ◽  
Reduced Graphene ◽  
Doped Graphene ◽  
Transfer Numbers

Thiophene S of sulfur-doped graphene quantum dots play an important role in electrocatalysis by increasing the electron transfer numbers.

NiAg-graphene quantum dot-graphene hybrid with high oxidase-like catalytic activity for sensitive colorimetric detection of malathion

2021 ◽  
Author(s):  
Xu Dan ◽  
Ruiyi Li ◽  
Qinsheng Wang ◽  
Yongqiang Yang ◽  
Haiyan Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Quantum Dot ◽  
Colorimetric Detection ◽  
Graphene Quantum Dots ◽  
Functionalized Graphene ◽  
Graphene Quantum Dot ◽  
Nickel Silver

The paper reports the synthesis of nickel-silver-graphene quantum dot-graphene hybrid. Histidine-functionalized graphene quantum dots (His-GQDs) were bonded to graphene oxide (GO) and then combined with Ni2+ and Ag+ to form...

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