Organic mixed ionic–electronic conductors

Nature Materials, Journal Year: 2019, Volume and Issue: 19(1), P. 13 - 26

Published: Aug. 19, 2019

Language: Английский

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Recent Progress on Circularly Polarized Luminescent Materials for Organic Optoelectronic Devices

Advanced Optical Materials, Journal Year: 2018, Volume and Issue: 6(17)

Published: July 3, 2018

Abstract Due to the characteristics of optical rotation, selective emission polarized light, and circular dichroism, circularly luminescent materials have aroused extensive attentions, they exhibited wide optoelectronic applications, such as data storage, liquid crystal display, backlights in 3D displays. Here, research progress for organic devices is summarized. First, definition measurement rotatory dispersion, luminescence, are systematically introduced. Subsequently, design strategies various kinds materials, including lanthanide transition‐metal complexes, small luminophores, conjugated polymers, supramolecules, crystals These exhibit luminescence with different magnitudes dissymmetry values ( g lum ). They further applied excellent performance, influence factors on these presented detail. Finally, current opportunities challenges this rapidly growing field discussed systematically. The large high efficiency very promising applications fields.

Language: Английский

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Liquid Crystals: Versatile Self-Organized Smart Soft Materials

Chemical Reviews, Journal Year: 2021, Volume and Issue: 122(5), P. 4887 - 4926

Published: Dec. 23, 2021

Smart soft materials are envisioned to be the building blocks of next generation advanced devices and digitally augmented technologies. In this context, liquid crystals (LCs) owing their responsive adaptive attributes could serve as promising smart materials. LCs played a critical role in revolutionizing information display industry 20th century. However, turn 21st century, numerous beyond-display applications have been demonstrated, which elegantly exploit controllable stimuli-responsive characteristics. For these applications, new LC rationally designed developed. Review, we present recent developments light driven chiral LCs, i.e., cholesteric blue phases, based windows that control entrance heat from outdoor interior buildings built environments depending on weather conditions, elastomers for bioinspired, biological, actuator biosensors detection proteins, nucleic acids, viruses, porous membranes separation ions, molecules, microbes, living under macro- nanoscopic confinement. The Review concludes with summary perspectives challenges opportunities This is anticipated stimulate eclectic ideas toward implementation nature's delicate phase matter future generations beyond.

Language: Английский

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Emerging Electrochromic Materials and Devices for Future Displays

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(18), P. 14679 - 14721

Published: Aug. 18, 2022

With the rapid development of optoelectronic fields, electrochromic (EC) materials and devices have received remarkable attention shown attractive potential for use in emerging wearable portable electronics, electronic papers/billboards, see-through displays, other new-generation due to advantages low power consumption, easy viewing, flexibility, stretchability, etc. Despite continuous progress related determining how make electrochromics truly meet requirements mature displays (e.g., ideal overall performance) has been a long-term problem. Therefore, commercialization relevant high-quality products is still its infancy. In this review, we will focus on EC including two mainstream display prototypes (segmented pixel displays) their commercial applications. Among these topics, materials/devices, performance, construction approaches, processing techniques are comprehensively disscussed reviewed. We also outline current barriers with possible solutions discuss future field.

Language: Английский

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Functional Liquid Crystals towards the Next Generation of Materials

Angewandte Chemie International Edition, Journal Year: 2018, Volume and Issue: 57(16), P. 4355 - 4371

Published: March 13, 2018

Abstract Since the discovery of liquid‐crystalline state in 1888, liquid crystal science has made great advances through fusion with various technologies and disciplines. Recently, new molecular design strategies self‐assembled structures have been developed as a result progress synthetic procedures characterization techniques. these crystals exhibit functions properties derived from their nanostructures alignment, variety for crystals, such transport energy applications, separation environmental chromism, sensing, electrooptical effects, actuation, templating proposed. This Review presents recent that should contribute to next generation materials.

Language: Английский

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Nature‐Inspired Emerging Chiral Liquid Crystal Nanostructures: From Molecular Self‐Assembly to DNA Mesophase and Nanocolloids

Advanced Materials, Journal Year: 2018, Volume and Issue: 32(41)

Published: Aug. 30, 2018

Liquid crystals (LCs) are omnipresent in living matter, whose chirality is an elegant and distinct feature certain plant tissues, the cuticles of crabs, beetles, arthropods, beyond. Taking inspiration from nature, researchers have recently devoted extensive efforts toward developing chiral liquid crystalline materials with self-organized nanostructures exploring their potential applications diverse fields ranging dynamic photonics to energy safety issues. In this review, account on state art emerging nanostructured technological provided. First, overview significance architectures various systems given. Then, recent significant progress different including thermotropic LCs (cholesteric LCs, cubic blue phases, achiral bent-core etc.) lyotropic (DNA nanocellulose graphene oxide LCs) showcased. The review concludes a perspective future scope, opportunities, challenges these truly advanced functional soft promising applications.

Language: Английский

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Highly Efficient Electroluminescence from Narrowband Green Circularly Polarized Multiple Resonance Thermally Activated Delayed Fluorescence Enantiomers

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(21)

Published: April 17, 2021

Abstract Purely organic fluorescent materials that concurrently exhibit high efficiency, narrowband emission, and circularly polarized luminescence (CPL) remain an unaddressed issue despite their promising applications in wide color gamut‐ 3D‐display. Herein, the CPL optical property multiple resonance (MR) effect induced thermally activated delayed fluorescence (MR‐TADF) emission are integrated with purity luminous efficiency together. Two pairs of highly efficient green CP‐MR‐TADF enantiomers, namely, ( R / S )‐OBN‐2CN‐BN )‐OBN‐4CN‐BN, developed. The enantiomer‐based light‐emitting diodes (OLEDs) pure narrow full‐width at half‐maximums (FWHMs) 30 33 nm, maximum external quantum efficiencies (EQEs) 29.4% 24.5%, clear electroluminescence (CPEL) signals dissymmetry factors g EL ) +1.43 × 10 −3 /−1.27 +4.60 −4 /−4.76 , respectively. This is first example a OLED exhibits CPEL signal, TADF concurrently.

Language: Английский

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Advanced Functional Liquid Crystals

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(23)

Published: Jan. 16, 2022

Abstract Liquid crystals have been intensively studied as functional materials. Recently, integration of various disciplines has led to new directions in the design liquid‐crystalline materials fields energy, water, photonics, actuation, sensing, and biotechnology. Here, recent advances liquid based on polymers, supramolecular complexes, gels, colloids, inorganic‐based hybrids are reviewed, from strategies functionalization these interfaces. New insights into provided by significant progress advanced measurements computational simulations, which enhance materials, also discussed.

Language: Английский

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Progress on Electrolytes Development in Dye-Sensitized Solar Cells

Materials, Journal Year: 2019, Volume and Issue: 12(12), P. 1998 - 1998

Published: June 21, 2019

Dye-sensitized solar cells (DSSCs) have been intensely researched for more than two decades. Electrolyte formulations are one of the bottlenecks to their successful commercialization, since these result in trade-offs between photovoltaic performance and long-term stability. The corrosive nature redox shuttles electrolytes is an additional limitation industrial-scale production DSSCs, especially with low cost metallic electrodes. Numerous electrolyte developed tested various DSSC configurations address aforementioned challenges. Here, we comprehensively review progress on development application DSSCs. We particularly focus improvements that made different types electrolytes, which enhanced device stability Several recently introduced materials reviewed, role designs critically assessed. To sum up, provide overview recent trends research DSSCs highlight advantages limitations reported novel compositions producing low-cost industrially scalable cell technology.

Language: Английский

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Decoupling segmental relaxation and ionic conductivity for lithium-ion polymer electrolytes

Molecular Systems Design & Engineering, Journal Year: 2019, Volume and Issue: 4(4), P. 779 - 792

Published: Jan. 1, 2019

This perspective reviews current strategies to decouple segmental motion and ionic conductivity for lithium polymer battery electrolytes, including an outlook potential future improvements.

Language: Английский

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