Carbon dioxide derived carbonized polymer dots for multicolor light-emitting diodes

Liu, Bin; Chu, Bo; Wang, Yaling; Hu, Lan‐Fang; Hu, Shengliang; Zhang, Xing Hong

doi:10.1039/d0gc03333b

Cited by 31 publications

(25 citation statements)

References 57 publications

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“…According to relevant literature reports [ 38 ], CDs possess a crosslink-enhanced (CE) effect, and the ability of their surface functional groups to bind water molecules during the cross-linking process may be further improved. In addition, the surface functional groups of CDs have polymer-like properties [ 39 – 41 ], and can effectively lock water molecules through water absorption and swelling (Fig. 5 e) [ 42 ].…”

Section: Resultsmentioning

confidence: 99%

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Dong

Wang

et al. 2021

J Nanobiotechnol

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Long-lasting moisture retention is a huge challenge to humectants, and effective methods or additives for promote these functions are limited, especially nano-additives. Carbon dots (CDs) have attracted increasing research interest due to its ultra-small size, excellent optical properties and low toxicity, etc. However, most of researches have been focused on the photoexcited CDs and its subsequent photophysical and chemical processes, such as photoluminescence, photodynamic, photothermal and photocatalytic behavior. The intrinsic chemo-physical properties of the pristine CDs are not fully explored. Here, we report an excellent moisture retention capability of a new carmine cochineal-derived CDs (Car-CDs) for the first time. The relationship between the structure of Car-CDs and its moisture retention capability is revealed. More interestingly, the effective applications of Car-CDs in moisturizing lipstick are demonstrated. This work expands the research and application of CDs into a broad, new area, potentially in skin care.

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Section: Resultsmentioning

confidence: 99%

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Dong

Wang

et al. 2021

J Nanobiotechnol

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“…In the XPS analysis, the higher percentages of sp2 type carbon at 284 eV and a π-π* transition peak appeared at 292 eV for the CDs were different identities compare with CPDs. At the 1H-NMR signal, the respective peaks of the precursor (polymer) sources were found to be a presence in the CPDs nanocomposite, but no meaningful (polymeric) peaks were observed in the CDs materials [9,10]. As both are carbon-based nanomaterials, the Raman spectroscopic D and G band can identify the ratio of carbon-carbon single and carbon=carbon double bond [9][10][11].…”

Section: Carbon Polymer Dot (Cpds) Carbon Dots (Cds) and Polymer Dots (Pds)mentioning

confidence: 97%

Nanoscale Carbon-Polymer Dots for Theranostics and Biomedical Exploration

Sharker

2021

JNT

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In recent years, new carbonized nanomaterials have emerged in imaging, sensing, and various biomedical applications. Published literature shows that carbon dots (CDs) have been explored more extensively than any other nanomaterials. However, its polymeric version, carbon polymer dots (CPDs), did not get much attention. The non-conjugated and single-particle CPDs have all the merits of polymer and CDs, such as photoluminescent properties. The partially carbonized CPDs can be applied like CDs without surface passivation and functionalization. This merit can be further enhanced through the selection of desired precursors and control of carbonization synthesis. CPDs can absorb UV-visible-NIR light and can enhance the photoresponsive chemical and biochemical interactions. This review aims to introduce this area of renewed interest and provide insights into current developments of CPDs nanoparticles and present an overview of chemical, biological, and therapeutic applications.

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“…The carbonized polymer dots are synthesized via hydro-/solvothermal methods at high temperature and pressure, and the resultant dots always show core−shell structure, which is made up of carbon core and the shell of a cross-linking polymer network. 81,82 The Φ of carbonized polymer dots is generally higher than that of the first two materials but with an unambiguous photophysical mechanism. 83 The cross-linking polymer dots could be obtained from the same monomers to the synthesis of carbonized polymer dots but with a mild reaction condition such as low temperature and atmospheric pressure.…”

Section: Network Clustersmentioning

confidence: 97%

“…Both of them always show low Φ, and quantum confinement effect is regarded as the emitting source. The carbonized polymer dots are synthesized via hydro-/solvothermal methods at high temperature and pressure, and the resultant dots always show core–shell structure, which is made up of carbon core and the shell of a cross-linking polymer network. , The Φ of carbonized polymer dots is generally higher than that of the first two materials but with an unambiguous photophysical mechanism . The cross-linking polymer dots could be obtained from the same monomers to the synthesis of carbonized polymer dots but with a mild reaction condition such as low temperature and atmospheric pressure. , It is believed that the cross-linking polymer dots are pure network clusters without a carbon core, but its Φ is sometimes even higher than the carbonized polymer dots, suggesting the emitting species in carbonized polymer dots and cross-linking polymer dots are both the network clusters.…”

Section: Perspectives Of CLmentioning

confidence: 99%

Through-Space Interactions in Clusteroluminescence

Zhang

Tang

2021

JACS Au

155

151

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Conventional π-conjugated luminophores suffer from problems such as emission quenching, biotoxicity, environmental pollution, etc. The emerging nonconjugated and nonaromatic clusteroluminogens (CLgens) are expected to overcome these stubborn drawbacks, so research of CLgens shows great significance not only for practical application but also for the construction of fundamental photophysical theories. This perspective summarizes the unusual features of CLgens in comparison to traditional chromophores, such as nonconjugated molecular structures, unmatched absorption and excitation, excitationdependent luminescence, multiple emission peaks, and roomtemperature phosphorescence. Different from the theory of through-bond conjugation in π-conjugated luminophores, through-space interactions, including through-space n•••n interaction and through-space n•••π interaction, are regarded as the emitting sources of nonconjugated CLgens. In addition, the formation of network clusters is proposed as an efficient strategy to improve the performance of CLgens, and their potential applications of anticounterfeiting, photoelectronic devices, and bioimaging are prospected.

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Carbon dioxide derived carbonized polymer dots for multicolor light-emitting diodes

Abstract: Carbonized polymer dots (CPDs) have received great research interest in recent years. However, the solid-state photoluminescence quenching of CPDs is a big challenge owing to resonance energy transfer or π–π*...

Cited by 31 publications

References 57 publications

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Nanoscale Carbon-Polymer Dots for Theranostics and Biomedical Exploration

Through-Space Interactions in Clusteroluminescence

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