Flexible molecular crystals for optoelectronic applications

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(8), P. 3687 - 3713

Published: Jan. 1, 2024

The cornerstones of the advancement flexible optoelectronics are design, preparation, and utilization novel materials with favorable mechanical advanced optoelectronic properties. Molecular crystalline have emerged as a class underexplored yet promising due to reduced grain boundaries defects anticipated provide enhanced photoelectric characteristics. An inherent drawback that has precluded wider implementation molecular crystals thus far, however, been their brittleness, which renders them incapable ensuring compliance required for even simple elastic or plastic deformation device. It is perplexing despite plethora reports in meantime become available underpinning flexibility crystals, "discovery" elastically plastically deformable remains limited cases serendipitous laborious trial-and-error approaches, situation calls systematic thorough assessment these properties correlation structure. This review provides comprehensive concise overview current understanding origins crystal flexibility, working mechanisms deformations such bending behaviors, insights into examples specifically concerning photoelectronic changes occur deformed crystals. We hope this summary will reference future experimental computational efforts aimed towards improving behavior properties, ultimately intending advance technology.

Language: Английский

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A Broadband, Multiplexed‐Visible‐Light‐Transport in Composite Flexible‐Organic‐Crystal Waveguide

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(48)

Published: Sept. 30, 2022

We report the construction of an organic crystal multiplexer using three chemically and optically different acicular, flexible crystals for a broadband, visible light signal transportation. The mechanical integration highly waveguide (Z)-2-(3,5-bis(trifluoromethyl)phenyl)-3-(7-methoxybenzo[c][1,2,5]thiadiazol-4-yl)acrylonitrile (BTD2CF3 ) displaying bright yellow (λ1 fluorescence with blue-emitting (λ2 BPP cyan emitting (λ3 DBA AFM-tip provides composite multiplexer. constructed hybrid single effectively transduces optical signals +λ2 +λ3 covering 420-750 nm region as output signal. presented proof-of-principle experiment demonstrates real potential waveguides communication technologies.

Language: Английский

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Collective photothermal bending of flexible organic crystals modified with MXene-polymer multilayers as optical waveguide arrays

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: June 19, 2023

The performance of any engineering material is naturally limited by its structure, and while each suffers from one or multiple shortcomings when considered for a particular application, these can be potentially circumvented hybridization with other materials. By combining organic crystals MXenes as thermal absorbers charged polymers adhesive counter-ionic components, we propose simple access to flexible hybrid crystal materials that have the ability mechanically respond infrared light. ensuing are durable, fast, cycled between straight deformed state repeatedly without fatigue. point flexure curvature precisely controlled modulating position, duration, power excitation, this control extended individual motion ordered two-dimensional arrays such crystals. We also demonstrate excitation achieved over very long distances (>3 m). shape light adds versatility in anticipated applications crystals, most immediately their application thermally controllable optical waveguides signal transmission electronics.

Language: Английский

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Recent Progress in Silicon‐Based Photonic Integrated Circuits and Emerging Applications

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(20)

Published: Sept. 10, 2023

Abstract In recent years, with the further ministration of semiconductor device in integrated circuits, power consumption and data transmission bandwidth have become insurmountable obstacles. As an technology, photonic circuits (PICs) a promising potential post‐Moore era more advantages processing, communication, diversified sensing applications for their ultra‐high process speed low consumption. Silicon photonics is believed to be encouraging solution realize PICs because mature CMOS process. The past decades witnessed huge growth silicon PICs. However, there still demand development enable powerful chip‐scale systems new functionalities. this paper, review components, functional blocks, emerging offered. common components are classified into several sections, including on‐chip light sources, fiber‐to‐chip couplers, resonators, waveguide‐based sensors, photodetectors, modulators. blocks mentioned memories neural networks. Finally, paper concludes study.

Language: Английский

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Amphibian‐like Flexible Organic Crystal Optical Fibers for Underwater/Air Micro‐Precision Lighting and Sensing

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(17)

Published: Feb. 10, 2023

Visible light guiding optical fibers with underwater operational capability are highly desired for subaquatic communication and sensing technologies. Herein, we present mechanically flexible, blue-violet fluorescent (4,4'-bis(2,6-di(1H-pyrazol-1-yl)pyridin-4-yl)biphenyl) (BPP) crystal waveguides high-aspect ratio. These milli-meter-long BPP crystals guide actively passively in ambient conditions demonstrating their amphibian-like character. Due to the crystal's high flexibility, fiber's output direction submerged states can be altered high-precision lighting applications. The development of such multi-environment-compatible flexible organic acting as materials possess enormous potential short-range photonic

Language: Английский

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Flexible Organic Crystals for Dynamic Optical Transmission

Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(18), P. 7363 - 7385

Published: Sept. 15, 2023

In recent years, studies of organic optical waveguide materials have emerged as a cutting-edge research area driven by their inherent advantages, such low losses, structural versatility, and attractive properties. Notably, crystals exhibiting high refractive index transparency gained attention prospective for next-generation optoelectronic devices. However, unlike viscoelastic polymers with flexible chains, single composed densely arranged anisotropic small molecules not been considered viable functional due to mechanical rigidity fragility. Recently, the solid-state community has witnessed breakthrough in developing crystalline materials, bringing unique class soft yet ordered engineering plasticity or elasticity poised revolutionize concept electronics. Recent works demonstrated feasibility transmission developed variety elastic different structures functions, opening up opportunities design single-crystalline electronic The first prepared building on luminescent properties crystals. Subsequently, various discovered reported, enabling realization self-doped crystal waveguides, three-dimensional phosphorescent polarization rotators, other elements. Through molecular strategies, construction π-conjugated systems introduction heteroatoms, well employing principles engineering, researchers waveguiding extraordinary properties, including thermoplastic bending stimulus-specific deformation. applications these optically extended low/high-temperature environments. Furthermore, combining inorganic/polymeric self-assembly techniques led development new hybrid solvent-resistant-coated crystals, humidity- temperature-responsive actuators, magnetically controllable materials. These advancements paved way novel devices, sensors, robots,

Language: Английский

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Schiff base flexible organic crystals toward multifunctional applications

Aggregate, Journal Year: 2024, Volume and Issue: 5(3)

Published: Jan. 23, 2024

Abstract The emergence of flexible organic crystals changed the perception molecular that were regarded as brittle entities over a long period time, and sparked great interest in exploring mechanically compliant crystalline materials toward next‐generation smart during past decade. Schiff base compounds are considered to be one most promising candidates for owing their easy synthesis, high yield, stimuli responsiveness good mechanical properties. This paper gives an overview recent development (including elastic crystals, plastic integrating elasticity plasticity) from serendipitous discovery design strategies versatile applications such responses, optical waveguides, optoelectronic devices, biomimetic soft robots, photonic integrated circuits. Notably, atomic force microscopy‐micromanipulation technique has been utilized bring multifunctional macroscopic level microscopic world. Since understanding flexibility at through crystal engineering can assist us trace down structural origin properties, we focus on packing structures various driven by non‐covalent intermolecular interactions close correlation with behaviors. We hope information given here will help novel combined other unique promote further research into area applications.

Language: Английский

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Hybrid and composite materials of organic crystals

Chemical Science, Journal Year: 2024, Volume and Issue: 15(8), P. 2684 - 2696

Published: Jan. 1, 2024

Combining organic crystals and polymers results in a new class of all-organic, lightweight, flexible materials with unprecedented mechanical robustness, resilience, diversity combination other functional materials.

Language: Английский

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Mechanical Twisting-Induced Enhancement of Second-Order Optical Nonlinearity in a Flexible Molecular Crystal

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Flexible molecular crystals are essential for advancing smart materials, providing unique functionality and adaptability applications in next-generation electronics, pharmaceuticals, energy storage. However, the optical of flexible have been largely restricted to linear optics, with nonlinear (NLO) properties rarely explored. Herein, we report on application mechanical twisting second-order optics. The crystal formed through self-assembly model compound 9-anthraldehyde (AA) features an intrinsic chiral noncentrosymmetric structure, demonstrating high efficiency second harmonic generation (SHG) NLO circular dichroism, which could be greatly enhanced by macroscopic twisting. anisotropic stacking imparts AA flexibility combined elastic bending plastic isochiral enhance SHG intensities order magnitude depending their M- or P-configuration. Meanwhile, dichroism factor gSHG-CD twisted is increased, achieving highest reported anisotropy among organic materials. These boosted performances intensity chiroptical response expected expand photonic crystals.

Language: Английский

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A Tandem Approach to Fabricate a Hybrid, Organic‐Add‐Drop Filter Using Single‐Crystal Disk‐Resonators and Pseudo‐Plastic Crystal Waveguides

Laser & Photonics Review, Journal Year: 2023, Volume and Issue: 17(12)

Published: Sept. 14, 2023

Abstract The progress of photonic integrated circuits (PICs) and related nanophotonic technologies is greatly influenced by precise complex circuit fabrication know‐how. integration chemically different, multiple optical components for constructing hybrid PICs a tedious costly affair. Herein, novel approach to construct key component reported, namely organic add‐drop filter (HOADF) tandem use two different techniques, namely, mechanophotonics (micromechanical manipulation) crystal photonics foundry (focused ion beam, FIB‐assisted milling). successful FIB‐milled, yellow‐emissive, perylene disk resonators (DRs) pseudo‐plastic microcrystal waveguides, yellow–orange‐emitting (Z)−2‐(3,5‐bis(trifluoromethyl)phenyl)−3‐(7‐methoxybenzo[c][1,2,5]thiadiazol‐4‐yl)acrylonitrile (BTD2CF3) green‐emitting (E)−1‐(((5‐bromopyridin‐2‐yl)imino)methyl)naphthalen‐2‐ol (BPyIN), provides three‐component HOADF. fabricated HOADF produce, split, route light signals wavelengths in controlled fashion as anticipated from the geometry. This presented innovative technique has potential enable bulk‐scale manufacturing industrial standard PICs.

Language: Английский

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