Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150442 - 150442
Published: March 16, 2024
Language: Английский
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(44)
Published: Aug. 29, 2023
Abstract Circularly polarized organic light‐emitting diodes are of great significance in 3D displays. However, achieving circularly electroluminescence (CP‐EL) simultaneously with a large dissymmetry factor ( g EL ) and high efficiency still remains formidable challenge. Herein, facile efficient strategy is developed for improving the performance CP‐EL devices using device emitting layers chiral coassembled helix nanofiber host materials. Chiral materials (( S ‐/ R ‐2Cz) 0.2 ‐(PFpy) 0.8 could be smartly constructed through intermolecular π–π stacking interactions between achiral conjugated pyridine‐based polymer acceptor (PFpy) binaphthyl‐based donor ‐2Cz). Significantly, resulting hosts greatly promote commercially available phosphorescence emitter to achieve solution‐processed red performances at 620 nm external quantum 4.1% | value 0.014.
Language: Английский
Citations
24
Annual Review of Materials Research, Journal Year: 2024, Volume and Issue: 54(1), P. 97 - 115
Published: April 22, 2024
In chemistry and biochemistry, chirality represents the structural asymmetry characterized by nonsuperimposable mirror images for a material such as DNA. physics, however, commonly refers to spin–momentum locking of particle or quasiparticle in momentum space. While seemingly disconnected, molecules crystals can drive electronic through orbital–momentum locking; that is, be transferred from atomic geometry orbitals. Electronic provides an insightful understanding chirality-induced spin selectivity, which electrons exhibit salient polarization after going chiral material, electrical magnetochiral anisotropy, is diode-like transport. It further gives rise new phenomena, anomalous circularly polarized light emission, handedness relies on emission direction. These chirality-driven effects will generate broad impacts fundamental science technology applications spintronics, optoelectronics, biochemistry.
Language: Английский
Citations
16
Progress in Polymer Science, Journal Year: 2024, Volume and Issue: 151, P. 101800 - 101800
Published: Feb. 8, 2024
Language: Английский
Citations
14
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(38)
Published: July 25, 2024
A promising kind of ternary chiral co-assemblies with high PLQY, large dissymmetry factor (g
Language: Английский
Citations
11
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(47)
Published: Oct. 6, 2024
Abstract The development of stimuli‐responsive and color‐tunable chiral organic afterglow materials has attracted great attention but remains a daunting challenge. Here, simple yet effective strategy through the construction dynamic H‐bonding network is proposed to explore multi‐color by doping self‐designed phosphorescent chromophore into polyvinyl alcohol matrix. A deep blue system with lifetime up 3.35 s, quantum yield 25.0%, luminescent dissymmetry factor 0.05 achieved reversible formation breakdown upon thermal‐heating water‐fumigating. Moreover, can be obtained energy transfer, allowing establishment information displays high‐level 4D encryption. This work not only offers facile platform develop advanced also opens new avenue for developing next‐generation optical technology enhanced functionality responsiveness.
Language: Английский
Citations
11
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)
Published: March 12, 2024
Abstract Chiral organic‐inorganic hybrid perovskites (OIHPs) exhibit exceptional optical and chiral properties, demonstrating potential for 3D display, circularly polarized light‐emitting diodes (CP‐LEDs), CPL switches. However, the construction of OIHPs often relies on building blocks, limiting chemical diversity, possessing challenges in achieving large asymmetry factor ( g lum ) without sacrificing photoluminescence quantum yield (PLQY). Here, DMA 4 In 1‐ x Sb Cl 7 (DMA = dimethylammonium, 0 to 1) with superior luminescence (CPL) are successfully constructed based achiral blocks + metal halides. By optimizing 3+ content, bright white emission a high PLQY 69.13% is achieved, as well near‐unity yellow strong signals up +1.40 × 10 −2 , exhibiting performance comparable state‐of‐the‐art OIHPs. Combining characterizations theoretical calculations reveal that these intriguing properties originate from intrinsic helical structures pair perfect complementary color emissions . addition, excellent thermal stability mild quenching temperature range 300 420 K. These fascinating suggest have significant applications (WLED), displays anti‐counterfeiting.
Language: Английский
Citations
10
Vacuum, Journal Year: 2024, Volume and Issue: 224, P. 113191 - 113191
Published: April 5, 2024
Language: Английский
Citations
9
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 28, 2025
Abstract In this study, the development of first fully‐organic circularly polarized near‐infrared organic light–emitting diode (CP‐NIR‐OLED) is presented. The devices are made by using a co‐assembled active layer consisting commercially available NIR‐emitting indacenodithienothiophene‐based molecule (ITIC) and chiral inducer. Here, ITIC, which traditionally utilized as non‐fullerene acceptor in photovoltaics for its superior characteristics, demonstrated to act an effective NIR emitter solution‐processed OLEDs. By incorporating additive into layer, emission successfully polarized, achieving CP‐NIR‐OLEDs with dissymmetry values up 0.074 maximum radiance 1.65 Wsr −1 m −2 . Additionally, study shows that manipulating position radiative exciton recombination zone within circular polarization sign can be switched, while maintaining even enhancing device performance. This also exhibit remarkable operational stability, indicating their potential short‐term applications. work provides significant step forward CP‐OLEDs opens new avenues use advanced optoelectronic devices.
Language: Английский
Citations
1
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Feb. 15, 2025
Abstract Organic light-emitting diodes (OLEDs) supporting the direct emission of circularly polarized (CP) light are essential for numerous technologies. The realization CP-OLEDs with large dissymmetry ( g EL ) factors and high external quantum efficiencies (EQEs) has been accepted as a considerable challenge. Here we demonstrate efficient based on assembly chiral plasmonic nanoparticles (NPs) supramolecular aggregates. NPs serve scaffold optical nanoantenna to modulate absorption chromophores. We employ different construct various dominated by excitons or plasmons. CP-OLED showing EQE 2.5% factor 0.31 is achieved, result multiscale chirality transfer, enhancement, suppression overshoot effect. proposed schemes compatible current manufacturing technology OLEDs. This work demonstrates that can be promising candidates in photoelectric devices.
Language: Английский
Citations
1
Nature Reviews Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 17, 2025
Language: Английский
Citations
1