Synthesis of fluorescent conjugated polymer nanoparticles and their immobilization on a substrate for white light emission

Kim, Choongho; Gwon, Young Jin; Kim, Jong‐Ho; Lee, Taek Seung

doi:10.1039/c8py01314d

Cited by 27 publications

(20 citation statements)

References 53 publications

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“…The absolute QY of the CPdot solution, CPdots immobilized glass, and CPdots immobilized nanofibers were determined as 20%, 24%, and 38%, respectively. [ 118 ] Li et al reported series of new polymers based on a methacrylate monomer containing a switchable boron chromophore, which displayed rare multicolor fluorescence in solution highly dependent on the degree of polymerization (DP). The local concentration of the chromophore increased with increasing DP, which led to a higher propensity for switching the blue‐emitting tricoordinate boron chromophore to the red‐emitting tetracoordinate.…”

Section: Recent Advances In Organic and Polymer Luminescent Materialsmentioning

confidence: 99%

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

Zhang

Pan

et al. 2020

Adv Materials Technologies

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The development and application of white light‐emitting diode (WLED) lighting technology are of great significance for reducing energy consumption. Commonly used WLED devices rely on the use of rare earth luminescent materials. However, rare earth elements are nonrenewable resources, and mining and refining processes have an adverse impact on the environment. In recent years, new white light‐emitting luminescent materials that do not contain rare earth elements have been developed, such as quantum dots, fluorescent carbon dots, perovskite luminescent materials, organic luminescent materials, and metal–organic framework materials, among others, some of which are successfully applied in the development of WLEDs. Herein the latest progress in this research field is reviewed, analyzing the construction of practical WLED devices and comparing the characteristics of newly developed rare earth‐free luminescent materials. Last, the future development prospects in this field are described.

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Section: Recent Advances In Organic and Polymer Luminescent Materialsmentioning

confidence: 99%

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

Zhang

Pan

et al. 2020

Adv Materials Technologies

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“…Strategies include: (i) precise molecular design and careful sequential control of intercomponent interactions in either solution or solid-state, 37 and (ii) partial isolation of the chromophores in a matrix to avoid redundant energy transfer. 38 Both of these methods are experimentally complicated and troublesome. We recognised that supramolecular gelators could be applied in this regard, as a special kind of dispersion system, containing a lot of liquid and showing both solid and solution properties.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular oligourethane gels as light-harvesting antennae: achieving multicolour luminescence and white-light emission through FRET

et al. 2021

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“…Various approaches, such as single white light polymers [11,12], exciplex [13], multiple blending [14] and utilization of tandem device [15,16], have been reported to realize white emission. Thereinto, multiple blending should be the advisable means to achieve high CRI white emission considering the simple device structure especially for the solution processed.…”

Section: Introductionmentioning

confidence: 99%

Efficient, stable and high color rendering index white polymer light-emitting diodes by restraining the electron trapping

Sun

et al. 2020

Organic Electronics

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Superior solid-state light source should possess not only a high device efficiency but also high color rendering index (CRI) and excellent color stability. Here, we obtained efficient, stable and high CRI white polymer light-emitting diodes (WPLEDs) through applying the well-chosen trichromatic polymers and restraining the electron trapping. The trichromatic polymers all possess the similar mainchain units, their EL spectra shows an equidistant distribution. Detailed studies revealed that the part of green and red emission in the WPLED derive from the electron trapping which led to the current-dependent spectra. Applied proper electron transporting layer can enhance the direct electron injection which resulted in the electron trapping being restrained and improving the color stability. The optimized WPLED got a LEmax of 10.17 cd A 1 and CRI of 92, the CIE coordinates (0.346, 0.345) almost keep the same with the operating current density increasing from 10.53 mA cm 2 to 263.16 mA cm 2 .

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Synthesis of fluorescent conjugated polymer nanoparticles and their immobilization on a substrate for white light emission

Abstract: Fluorescent conjugated polymers (CPs) for blue, green, and red emission were polymerized via the Suzuki coupling reaction.

Cited by 27 publications

References 53 publications

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

Supramolecular oligourethane gels as light-harvesting antennae: achieving multicolour luminescence and white-light emission through FRET

Efficient, stable and high color rendering index white polymer light-emitting diodes by restraining the electron trapping

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