In situ access to fluorescent dual-component polymers towards optoelectronic devices via inhomogeneous biphase frontal polymerization

Li, Qing; Zhang, Wanchao; Wang, Cai‐Feng; Chen, Su

doi:10.1039/c5ra19173d

Cited by 14 publications

(25 citation statements)

References 39 publications

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“…Thus recently, quantum dot based light emitting diodes (QLEDs) became competitive alternatives to organic light emitting diodes (OLEDs) in terms of colour purity, luminescence intensities, and external quantum efficiencies (EQEs) [121][122][123] The narrow emission profile, the high stability of quantum dots (QDs), the high photoluminescence quantum yields (PL QYs), and the easily tunable emission wavelengths make them attractive as quantum dot LEDs (QLED) [124]. By understanding the basic device physics and optimizing the device structure it was possible to improve the device performance and efficiency of QLEDs, so much that they can be compared to organic LEDs [122,[125][126][127][128][129][130][131][132][133]. For this study semiconducting polymer hybrids QD, which allow a homogeneous dispersion in the matrix of a semiconducting polymer and an efficient charge transport into the QDs were very helpful [116,[134][135][136].…”

Section: Qd-ledsmentioning

confidence: 99%

Polymer Coated Semiconducting Nanoparticles for Hybrid Materials

Zentel

2020

Inorganics

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This paper reviews synthetic concepts for the functionalization of various inorganic nanoparticles with a shell consisting of organic polymers and possible applications of the resulting hybrid materials. A polymer coating can make inorganic nanoparticles soluble in many solvents as individual particles and not only do low molar mass solvents become suitable, but also polymers as a solid matrix. In the case of shape anisotropic particles (e.g., rods) a spontaneous self-organization (parallel orientation) of the nanoparticles can be achieved, because of the formation of lyotropic liquid crystalline phases. They offer the possibility to orient the shape of anisotropic nanoparticles macroscopically in external electric fields. At least, such hybrid materials allow semiconducting inorganic nanoparticles to be dispersed in functional polymer matrices, like films of semiconducting polymers. Thereby, the inorganic nanoparticles can be electrically connected and addressed by the polymer matrix. This allows LEDs to be prepared with highly fluorescent inorganic nanoparticles (quantum dots) as chromophores. Recent works have aimed to further improve these fascinating light emitting materials.

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Section: Qd-ledsmentioning

confidence: 99%

Polymer Coated Semiconducting Nanoparticles for Hybrid Materials

Zentel

2020

Inorganics

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“…This is especially advantageous due to its superior visco-elastic and mechanical properties, which aid in the manufacturing of new devices [ 14 , 15 , 16 , 17 , 18 , 19 ]. FPs, similar to small fluorescent molecules, have a wide range of uses for sensing [ 20 , 21 ] and imaging [ 22 , 23 , 24 , 25 , 26 , 27 ], optoelectronics [ 28 ], fluorescent bioprobes [ 29 ], molecular imaging [ 30 ], photodynamic treatments [ 31 ], OLEDs [ 32 ], storage data security [ 33 ], encryption [ 34 ], anti-counterfeiting materials [ 35 ], and other fields [ 27 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

Fluorescent Polymers Conspectus

Ahumada

Borkowska

2022

Polymers

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The development of luminescent materials is critical to humankind. The Nobel Prizes awarded in 2008 and 2010 for research on the development of green fluorescent proteins and super-resolved fluorescence imaging are proof of this (2014). Fluorescent probes, smart polymer machines, fluorescent chemosensors, fluorescence molecular thermometers, fluorescent imaging, drug delivery carriers, and other applications make fluorescent polymers (FPs) exciting materials. Two major branches can be distinguished in the field: (1) macromolecules with fluorophores in their structure and (2) aggregation-induced emission (AIE) FPs. In the first, the polymer (which may be conjugated) contains a fluorophore, conferring photoluminescent properties to the final material, offering tunable structures, robust mechanical properties, and low detection limits in sensing applications when compared to small-molecule or inorganic luminescent materials. In the latter, AIE FPs use a novel mode of fluorescence dependent on the aggregation state. AIE FP intra- and intermolecular interactions confer synergistic effects, improving their properties and performance over small molecules aggregation-induced, emission-based fluorescent materials (AIEgens). Despite their outstanding advantages (over classic polymers) of high emission efficiency, signal amplification, good processability, and multiple functionalization, AIE polymers have received less attention. This review examines some of the most significant advances in the broad field of FPs over the last six years, concluding with a general outlook and discussion of future challenges to promote advancements in these promising materials that can serve as a springboard for future innovation in the field.

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“…To the best of our knowledge, very few studies have been devoted to this principle of polymerization, and all of these works are based on thermal initiators other than alkoxyamines. − In particular, methyl methacrylate was successfully polymerized with a continuous-wave CO 2 laser . Examples of frontal polymerization ignited by CO 2 laser are given in refs and . Therefore, we propose to polymerize a benchmark methacrylate monomer blend (Mix-MA, depicted in Scheme ) containing an alkoxyamine as the thermal initiator (BlocBuilder-MA).…”

Section: Introductionmentioning

confidence: 99%

Light-Induced Thermal Decomposition of Alkoxyamines upon Infrared CO₂ Laser: Toward Spatially Controlled Polymerization of Methacrylates in Laser Write Experiments

et al. 2020

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Systems combining photopolymerization and thermal polymerization have already been reported in the literature. Upon near-infrared (NIR) light exposure, this principle of polymerization is called photoinduced thermal polymerization or photothermal polymerization. Thanks to an NIR dye used as the light-to-heat convertor (called hereafter a heater), an alkoxyamine (e.g., BlocBuilder-MA) is dissociated upon NIR light irradiation, initiating the free-radical polymerization of methacrylates. In the present paper, a novel approach is presented for the first time to decompose the alkoxyamine through a direct heat generation upon mid-infrared irradiation by a CO 2 laser at 10.6 μm. Compared with previous approaches, there is no additional heater used in this work, as the heat is directly generated by laser irradiation on the alkoxyamine/monomer system. The polymerization can be initiated for benchmark methacrylate monomers with spatial controllability, that is, only in the laser-irradiated area, opening the way for laser write or three-dimensional printing applications in the presence of fillers.

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In situ access to fluorescent dual-component polymers towards optoelectronic devices via inhomogeneous biphase frontal polymerization

Abstract: Fluorescent dual-component poly(AM-co-NVP) and poly(HEA-co-NVP) polymers used to generate white LEDs were in situ synthesized via laser-ignited inhomogeneous biphase frontal polymerization.

Cited by 14 publications

References 39 publications

Polymer Coated Semiconducting Nanoparticles for Hybrid Materials

Polymer Coated Semiconducting Nanoparticles for Hybrid Materials

Fluorescent Polymers Conspectus

Light-Induced Thermal Decomposition of Alkoxyamines upon Infrared CO₂ Laser: Toward Spatially Controlled Polymerization of Methacrylates in Laser Write Experiments

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In situ access to fluorescent dual-component polymers towards optoelectronic devices via inhomogeneous biphase frontal polymerization

Abstract: Fluorescent dual-component poly(AM-co-NVP) and poly(HEA-co-NVP) polymers used to generate white LEDs were in situ synthesized via laser-ignited inhomogeneous biphase frontal polymerization.

Cited by 14 publications

References 39 publications

Polymer Coated Semiconducting Nanoparticles for Hybrid Materials

Polymer Coated Semiconducting Nanoparticles for Hybrid Materials

Fluorescent Polymers Conspectus

Light-Induced Thermal Decomposition of Alkoxyamines upon Infrared CO2 Laser: Toward Spatially Controlled Polymerization of Methacrylates in Laser Write Experiments

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Light-Induced Thermal Decomposition of Alkoxyamines upon Infrared CO₂ Laser: Toward Spatially Controlled Polymerization of Methacrylates in Laser Write Experiments