Journal ArticleDOI
Highly Elastic Organic Crystals for Flexible Optical Waveguides.
TLDR
An elastic crystal of a Schiff base, (E)-1-(4-(dimethylamino)phenyl)iminomethyl-2-hydroxyl-naphthalene, which is highly bendable under external stress and able to regain immediately its original straight shape when the stress is released can serve as a low-loss optical waveguide even at the highly bent state.Abstract:
The study of elastic organic single crystals (EOSCs) has emerged as a cutting-edge research of crystal engineering. Although a few EOSCs have been reported recently, those suitable for optical/optoelectronic applications have not been realized. Here, we report an elastic crystal of a Schiff base, (E)-1-(4-(dimethylamino)phenyl)iminomethyl-2-hydroxyl-naphthalene. The crystal is highly bendable under external stress and able to regain immediately its original straight shape when the stress is released. It displays bright orange-red emission with a high fluorescence quantum yield of 0.43. Intriguingly, it can serve as a low-loss optical waveguide even at the highly bent state. Our result highlights the feature and utility of "elasticity" of organic crystals.read more
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Journal ArticleDOI
An Optical Waveguiding Organic Crystal with Phase-Dependent Elasticity and Thermoplasticity over Wide Temperature Ranges
TL;DR: For the application of flexible materials, the applicable temperature range can be varied as discussed by the authors, depending on the properties of the flexible materials and the temperature of the crystal lattice, and the desired temperature range.
Journal ArticleDOI
A Mechanistic Perspective on Plastically Flexible Coordination Polymers
Biswajit Bhattacharya,Adam A. L. Michalchuk,Dorothee Silbernagl,Max Rautenberg,Thomas Schmid,Thomas Schmid,Torvid Feiler,Klauss Reimann,Ahmed Ghalgaoui,Heinz Sturm,Beate Paulus,Franziska Emmerling,Franziska Emmerling +12 more
TL;DR: The first example of a plastically flexible one‐dimensional (1D) coordination polymer, [Zn(μ‐Cl)2(3,5‐dichloropyridine)2]n is flexible over two crystallographic faces and remains intact when bent to 180°, is presented.
Journal ArticleDOI
Color-tunable persistent luminescence in 1D zinc–organic halide microcrystals for single-component white light and temperature-gating optical waveguides
Bo Zhou,Dongpeng Yan +1 more
TL;DR: In this article , the first use of metal-organic halide microcrystals as temperature-gating active waveguides with promising implications for high-security information communications and high-resolution micro/nanophotonics is presented.
Journal ArticleDOI
Mechanophotonics - a guide to integrating microcrystals toward monolithic and hybrid all-organic photonic circuits.
TL;DR: In this paper , the authors validate the reason for using organic crystals as alternate non-silicon materials for OPIC fabrication and introduce several crystal-based photonic modules and OPIC prototypes, their passive and active light transduction potentials, and the possibility of implementing well-known photo-physical concepts.
Journal ArticleDOI
Functional flexible molecular crystals: intrinsic and mechanoresponsive properties
TL;DR: In this article, the concept of functional flexible molecular crystals is highlighted, demonstrating the intrinsic properties of mechanical deformability and mechano-responsiveness induced by changes in crystal shape, and key insight into similar future developments that offer intrinsic and mechanical stimuli-responsive behavior toward flexible molecular crystal devices is also provided.
References
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Journal ArticleDOI
Mechanically Responsive Molecular Crystals
TL;DR: This paper presents a meta-analyses of the chiral stationary phase of the H2O/O2 mixture and shows clear trends in the direction of increasing chiral insensitivity to Naumov’s law.
Journal ArticleDOI
Elastic and bendable caffeine cocrystals: implications for the design of flexible organic materials.
Soumyajit Ghosh,C. Malla Reddy +1 more
TL;DR: A remarkably flexible, elastically bendable cocrystal solvate 1 is reported, formed from caffeine, 4-chloro-3-nitrobenzoic acid, and methanol in a 1:1:< 1 ratio (Figure 1).
Journal ArticleDOI
Spatially resolved analysis of short-range structure perturbations in a plastically bent molecular crystal
Manas K. Panda,Soumyajit Ghosh,Nobuhiro Yasuda,Taro Moriwaki,Goutam Dev Mukherjee,C. Malla Reddy,Panče Naumov +6 more
TL;DR: The morphostructural consequences of plastic deformation in crystals of hexachlorobenzene that can be bent mechanically at multiple locations to 360° with retention of macroscopic integrity are described.
Journal ArticleDOI
Mechanically Flexible Organic Crystals Achieved by Introducing Weak Interactions in Structure: Supramolecular Shape Synthons
TL;DR: The study, which reports the preparation of a series of exotic plastic crystals by design for the first time, demonstrates the potential of soft interactions for tuning the mechanical behavior of ordered molecular materials, including those from π-conjugated systems.
Journal ArticleDOI
Designing Elastic Organic Crystals: Highly Flexible Polyhalogenated N‐Benzylideneanilines
Soumyajit Ghosh,Manish Kumar Mishra,Sourabh B. Kadambi,Upadrasta Ramamurty,Upadrasta Ramamurty,Gautam R. Desiraju +5 more
TL;DR: The intermolecular interactions and structural features in crystals of seven halogenated N-benzylideneanilines (Schiff bases), all of which exhibit remarkable flexibility, were examined to identify the common packing features that are the raison d'être for the observed elasticity.
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