Photochemical synthesis of doped graphene quantum dots and their photoluminescence in aqueous and solid states

Tan, Dezhi; Liu, Xiaofeng; Qiu, Jianrong

doi:10.1039/c5ra19216a

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…Instead, multistep synthesis is more popular, in which pristine graphene or GQDs are formed first, followed by chemical doping, which is realized by a hydrothermal reaction, 23 chemical vapor deposition (CVD), 49 strong acid doping, 50 or even photochemistry synthesis. 51 One representative example of the use of multistep synthesis is shown in Fig. 2d.…”

Section: Multi-step Synthesismentioning

confidence: 99%

Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications

2016

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Doping fluorescent carbon dots (DFCDs) with heteroatoms have recently become of great interest compared to traditional fluorescent materials because it provides a feasible and new way to tune the intrinsic properties of carbon quantum dots (CQDs) and graphene quantum dots (GQDs) to achieve new applications for them in different fields. Since the first report on nitrogen (N) doped GQDs in 2012, more effort is being focused on exploring different procedures for making new types of DFCDs with different heteroatoms. This mini review will summarize recent research progress on DFCDs. It first reviews various doping categories achieved up to now, looking back on the synthesis method and comparing the differences in synthesis approaches between the DFCDs and the undoped ones. Then it focuses on the advances on how the doping affects the optical properties, especially DFCDs doped with N, which have been investigated the most. Finally, different applications of DFCDs involving bio-imaging, sensing, catalysis and photoelectronic devices will be discussed. This review will give new insights into how to use different synthetic methods for tuning the structure of DFCDs, understanding the correlation between the doping and properties, and achieving new applications.

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Section: Multi-step Synthesismentioning

confidence: 99%

Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications

2016

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“…reported synthesis for N-doped graphene quantum dots (NGQD) by laser irradiating GO in an aqueous ammonia solution. [87] Under irradiation , the graphene nanosheet can be cut into small pieces likely due to laser-induced radicals with simultaneous nitrogen doping. The NGQDs exhibit strong and tunable fluorescence, demonstrating potential application in micro-optoelectronic devices.…”

Section: Go Based Composites In Solutionmentioning

confidence: 99%

Laser‐Reduced Graphene: Synthesis, Properties, and Applications

Zhang

Streed

Lobino

et al. 2018

Adv Materials Technologies

136

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Laser reduction of graphene oxide has attracted significant interest in recent years, because it offers a highly flexible, rapid and chemical-free graphene fabrication route that can directly write on almost any solid substrate with down to submicron feature size. Laser-reduced graphene (LRG) has been explored for various important applications such as supercapacitors, sensors, field effect transistors, holograms, solar cells, flat lenses, bolometers, thermal sound sources, cancer treatment, water purification, lithiumion batteries, and electrothermal heaters. This contribution reviews most recent research progress on the aspects of fabrication, properties and applications of LRG. Particular attention is paid to the mechanism of LRG formation, which is still debatable. The three main theories, including the photochemical process, the photothermal process, and a combination of both processes are discussed. Strategies for tuning the properties and performance of LRG, such as the laser parameters, chemical doping, structure modulation, and environment control have been highlighted. LRGs with better performance including smaller feature size, higher conductivity, and more flexible morphology design in both two-dimensional and three-dimensional format will offer tremendous opportunities for advancement in electronics, photonic, and optoelectronic applications.

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Facile preparation of multifunctional Cu2−xS/S/rGO composite for all-round residual water remediation during interfacial solar driven water evaporation process

et al. 2022

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Photochemical synthesis of doped graphene quantum dots and their photoluminescence in aqueous and solid states

Abstract: A facile photochemical approach to prepare nitrogen doped graphene quantum dots (NGQDs) has been presented.

Cited by 4 publications

References 29 publications

Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications

Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications

Laser‐Reduced Graphene: Synthesis, Properties, and Applications

Facile preparation of multifunctional Cu2−xS/S/rGO composite for all-round residual water remediation during interfacial solar driven water evaporation process

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