An overview of phosphorescent metallomesogens based on platinum and iridium
Metallomesogens – liquid crystals containing metal centers – have attracted much interest owing to their interesting magnetic and electro-optical properties. Due to the theoretical 100% internal quantum efficiency, here, a brief overview of recent research on platinum/iridium-based metallomesogens including their molecular design and structure-property relationships is reported.
Anthracene-based semiconductors for organic field-effect transistors
A review of materials design strategies and efficient study methods for modeling of anthracene derivatives, with a description of their significant application in light-emitting transistors.
Graphene nanohybrids: excellent electromagnetic properties for the absorbing and shielding of electromagnetic waves
The microwave absorption, electromagnetic interference shielding, and microwave response mechanism of graphene hybrids are highlighted, including relaxation, charge transport, magnetic resonance, etc.
Light-emitting diodes of colloidal quantum dots and nanorod heterostructures for future emissive displays
Tunable, narrow-linewidth photoluminescence and solution processability make colloidal quantum dots, especially their anisotropic heterostructures, unique emitter materials for a variety of photonic and optoelectronic applications.
Magnetic iron oxide nanoparticles as T1 contrast agents for magnetic resonance imaging
This review discusses several aspects regarding ultrasmall magnetic nanoparticles as T1 contrast agents, including synthesis, parameters affecting T1, and applications.
External current-controlled dynamic display by integrating upconversion micro-disks with power density-dependent color into NIR luminescent diodes
An externally controlled color-tunable light-emitting device was developed by integrating the power density sensitive upconversion materials into the NIR-LED.
High-performance vertical GaN-based near-ultraviolet light-emitting diodes on Si substrates
High-performance vertical GaN-based near-ultraviolet (UV) light-emitting diodes (LEDs) on Si substrates with an electroluminescence emission wavelength of 395 nm have been fabricated by designing epitaxial structures to reduce the dislocation density and enhance the electron confinement and hole injection.
Two-dimensional transitional metal dihydride crystals with anisotropic and spin-polarized Fermi Dirac cones
Four new 2D MH2 crystals with anisotropic and spin-polarized Fermi–Dirac cones are reported by using first-principles calculations.
Insight into chirality on molecular stacking for tunable ultralong organic phosphorescence
A new levorotatory compound ((S)-9,9′-(6-(1-phenylethoxy)-1,3,5-triazine-2,4-diyl)bis(9H-carbazole)) and its corresponding racemic compound show different intermolecular interactions to restrain nonradiative transition, resulting in an enhanced ultralong organic phosphorescence lifetime from 229.0 ms to 419.8 ms.
Atomically thin semiconducting penta-PdP2 and PdAs2 with ultrahigh carrier mobility
Two dimensional materials with a pentagonal structure and ultra-high carrier mobilities have been designed theoretically.
Highly efficient crystalline organic light-emitting diodes
An efficient crystalline organic light-emitting diode based on high-quality crystalline heteroepitaxy films has been constructed, which exhibits high efficiency.
Pyridination of hole transporting material in perovskite solar cells questions the long-term stability
Interaction of the hole transporting material with tert-butylpyridine as a possible degradation pathway of perovskite solar cells.
Origin of the green persistent luminescence of Eu-doped SrAl2O4 from a multiconfigurational ab initio study of 4f7 → 4f65d1 transitions
The green persistent luminescence from SrAl2O4:Eu is assigned to Eu2+ at the Sr2 site based on a multiconfigurational ab initio study.
Small molecule donors based on benzodithiophene and diketopyrrolopyrrole compatible with both fullerene and non-fullerene acceptors
Two small molecule donors achieved over 5% PCEs when combined with fullerene, non-fullerene or blended acceptors.
Covalent organic frameworks: a platform for the experimental establishment of the influence of intermolecular distance on phosphorescence
Phosphorescent 2D covalent organic frameworks were utilized as a research platform to study the relationship between phosphorescence emission and interlayer distance.
The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties
The partitioning of rare earth ions (REs: Yb3+, Er3+, Eu3+ and Nd3+) in γ-Ga2O3 nanocrystals (NCs) precipitated in a nanostructured silicate glass ceramic is revealed, and the enrichment of REs in the NCs (bulk doping) rather than on the interfaces between the NCs and the surrounding glassy phase (surface doping) is differentiated.
A novel water-soluble and self-doped conducting hybrid copolymer: poly(4-oxybenzenesulfonic acid)phosphazene-g-poly(3,4-ethylenedioxythiophene)
In this report we describe the efficient synthesis and characterization of a series of water-soluble, self-doped PEDOT hybrid copolymers based on a polyaryloxyphosphazene platform, which brings a new perspective to the challenging solubility problem of PEDOT.
Controllable growth of C8-BTBT single crystalline microribbon arrays by a limited solvent vapor-assisted crystallization (LSVC) method
Uniformly aligned single crystal arrays of C8-BTBT were prepared by the LSVC method and their OFETs exhibit high mobility with uniform distribution.
Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature
The symmetry breaking originating from the order–disorder dynamic transition of organic cations results in moderate spontaneous polarization as well as switchable SHG signal and pyroelectric property with feasible “on/off” contrasts.
Topologically protected hybrid states in graphene–stanene–graphene heterojunctions
We report a van der Waals heterostructure based graphene–stanene–graphene (C–Sn–C) quantum wall (QW), which shows a topologically protected hybrid state in the graphene–stanene interface.
Mimosa inspired bilayer hydrogel actuator functioning in multi-environments
Inspired by the water self-circulation mechanism that contributes to the motion of Mimosa leafs, a hydrogel actuator with a reverse thermal responsive bilayer structure was prepared, which can generate motions in water, oil and even in open-air environment.
Reversible up-conversion luminescence modulation based on UV-VIS light-controlled photochromism in Er3+ doped Sr2SnO4
The up-conversion luminescence of Er3+ doped Sr2SnO4 can be reversibly modulated by alternating 290 nm-light and 460 nm-light irradiation based on a photochromic reaction.
Impact of solution temperature-dependent aggregation on the solid-state packing and electronic properties of polymers for organic photovoltaics
The impact of solution temperature-dependent aggregation of PffBT4T-2OD and PBT4T-2OD polymers on their electronic and solid-state packing properties is investigated using MD simulations and DFT calculations.
Suppressed hysteresis and enhanced performance of triple cation perovskite solar cell with chlorine incorporation
Cl-Incorporated triple-cation perovskite, as a novel absorber, has been developed to suppress hysteresis and enhance photoelectric performance.
Photoluminescence tuning in a novel Bi3+/Mn4+ co-doped La2ATiO6:(A = Mg, Zn) double perovskite structure: phase transition and energy transfer
Enhanced red emission of Mn4+ and photoluminescence tuning by Bi3+ → Mn4+ energy transfer and symmetric changes in Bi3+/Mn4+-doped La2ATiO6 (A = Mg, Zn) double perovskite structure phosphors.
Remarkable nonlinear optical response of pyrazine-fused trichalcogenasumanenes and their application for optical power limiting
Fusion of the pyrazine moiety onto bowl-shaped trichalcogenasumanenes results in a remarkable nonlinear optical response and optical power limiting performance that is better than C60.
Ba2M(C3N3O3)2 (M = Mg, Ca): potential UV birefringent materials with strengthened optical anisotropy originating from the (C3N3O3)3− group
(C3N3O3)3− is first proposed to be an excellent birefringent active group and the representative compounds Ba2M(C3N3O3)2 (M = Mg and Ca) are studied in detail.
Achieving highly saturated single-color and high color-rendering-index white light-emitting electrochemical cells by CsPbX3 perovskite color conversion layers
Saturated emission from light-emitting electrochemical cells integrated with CsPbX3 perovskite color conversion layers.
From C60Ph5Cl to C60Ph6: complete phenylation of C60 derivative renders superior organic photovoltaic performance
The fully phenylated C60 derivative C60Ph6 for organic solar cells with high open-circuit voltage of 1.04 V.
Broad-band emission of A3B′B′′2O9 complex perovskites (A = Ba, Sr; B′ = Zn; B′′ = Ta, Nb) realized by structural variations of the B site order–disorder
A single-component white phosphor with a high color rendering index (Ra = 82.2) and good color stability was achieved by nonequivalent doping as the proposed strategy, which induces B-site disordering and compensates the intrinsic oxygen defects of SZN.
Ultrahigh energy storage density and instantaneous discharge power density in BaO–PbO–Na2O–Nb2O5–SiO2–Al2O3 glass-ceramics
An ultrahigh energy storage density Es of 20.7 J cm−3 and a maximum instantaneous power density of 78.2 MW cm−3 were obtained in BPNN-AS glass-ceramics.
Low threshold lasing from novel thulium-incorporated C(NH2)3PbI3 perovskite thin films in Fabry–Pérot resonator
The F–P resonator enhances the lasing performances of Tm-doped C(NH2)3PbI3 perovskite thin films. It exhibits a high Q-factor value with a low threshold. When compared to previous literature, this GAPbI3:Tm-based F–P resonator achieves better lasing performances.
New cationic Ir(III) complexes without “any soft substituents”: aggregation-induced emission and piezochromic luminescence
Two new aggregation-induced emission (AIE)-active cationic Ir(III) complexes with relatively rigid ligands have been rationally designed and synthesized, exhibiting excellent piezochromic luminescence (PCL) properties.
Metastable phase control of two-dimensional transition metal dichalcogenides on metal substrates
Engineering the stability of the metastable phase of 2D MoS2 by appropriate choice of metal substrate determined by the electron occupation of Mo d-orbitals.
A phototactic liquid micromotor
We report a water-based micromotor with both positive and negative phototaxis under light illumination, which not only enables controlled cargo capture and transportation but also allows droplet coalescence so that it may function as a microreactor.
Li8NaRb3(SO4)6·2H2O as a new sulfate deep-ultraviolet nonlinear optical material
A new sulfate Li8NaRb3(SO4)6·2H2O exhibits a short cutoff edge below λ < 190 nm and has a moderate second-harmonic generation response in type-I phase-matchable behavior.
Electric field–temperature phase diagrams for (Bi1/2Na1/2)TiO3–BaTiO3–(K1/2Na1/2)NbO3 relaxor ceramics
Addition of KNN to BNT–BT moves the phase diagram to lower temperatures while introduced oxygen vacancies move it to higher temperatures.
Anodizing with voltage versus optical path length modulation: a new tool for the preparation of photonic structures
Direct control of the optical path length of each layer inside anodic alumina produces a high quality photonic crystal.
Highly stable perovskite nanogels as inks for multicolor luminescent authentication applications
Full-spectral emissive perovskite nanogels present outstandingly improved photo-stability, thermal-stability and humidity-stability for anti-counterfeiting two-dimensional barcode application.
Polyurethane derivatives for highly sensitive and selective fluorescence detection of 2,4,6-trinitrophenol (TNP)
A series of luminescent non-conjugated polyurethane derivatives (PUs) has been obtained in a facile way in high yields. TNP is selectively detected in water with a concentration of 10−10 M.
1.2 μm persistent luminescence of Ho3+ in LaAlO3 and LaGaO3 perovskites
Combination between electron traps and host phonon energy for Ho3+ persistent luminescence in perovskites.
Solution-processed solar-blind deep ultraviolet photodetectors based on strongly quantum confined ZnS quantum dots
Strongly quantum confined ZnS quantum dots were synthesized and solar-blind deep ultraviolet photodetectors were fabricated via a solution process.
Oxygen vacancy regulation and its high frequency response mechanism in microwave ceramics
This article reports a new research method for oxygen vacancy regulation in microwave ceramics and its high frequency response mechanism.
Enhanced efficiency of polymer solar cells through synergistic optimization of mobility and tuning donor alloys by adding high-mobility conjugated polymers
A diketopyrrolopyrrole-based small bandgap polymer (DPPT-TT) with high mobility is introduced as an additive to D–A1–D–A2 type thieno[3,4-b]thiophene-based random copolymer (P3):(6,6)-phenyl-C70-butyric acid methyl ester (PC71BM) polymer solar cells (PSCs).
Hybrid organic–inorganic lead bromide perovskite supercrystals self-assembled with L-cysteine and their good luminescence properties
The assembled supercrystals induced by crosslinking of L-cysteine exhibit strong fluorescence, high stability and a PL lifetime of 642 ns.
Microenvironments induced ring-closing of halide salts of oxazolidines: a rare inverse proton gradient process and its application in water-jet rewritable paper
Ring-closing of ROF+X− generated biomimetic inverse proton gradient was successfully achieved via varying microenvironment for improved performance of water-jet rewritable paper.
Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps
The zero-thermal-quenching behavior at high temperature up to 225 °C was benefited from the carriers captured by deeper traps, which can be verified by thermoluminescence spectra.
A turn-on fluorescent probe based on Si-rhodamine for sensitive and selective detection of phosgene in solution and in the gas phase
A turn-on fluorescent probe based on Si-rhodamine for sensitive and selective detection of phosgene in solution and in the gas phase.
High-entropy alloy superconductors on an α-Mn lattice
Previously unreported High-Entropy Alloy (HEA) superconductors in the pentanary (ZrNb)1−x[MoReRu]x, (HfTaWIr)1−x[Re]x, and (HfTaWPt)1−x[Re]x systems are described and characterized.
Enhancing the tactile and near-infrared sensing capabilities of electrospun PVDF nanofibers with the use of gold nanocages
Gold nanocages are directly into PVDF nanofibers during electrospinning to greatly improve their performance in tactile and near-infrared sensing.
Dual electric and magnetic responsivity of multilayered magnetite-embedded core/shell silica/titania nanoparticles with outermost silica shell
Multilayered magnetite-embedded core/shell silica/titania (SiO2/TiO2) nanoparticles with an outermost silica shell (SiO2/TiO2@Fe3O4/SiO2) were synthesized and used to develop stimuli-responsive smart fluids.
A multi-state fluorescent switch with multifunction of AIE, methanol-responsiveness, photochromism and mechanochromism
In this article, we report a newly designed molecule, RhTPE, synthesized by fusing rhodamine with TPE, which realizes both emission color change and on/off switching.
Interlayer coupling and external electric field tunable electronic properties of a 2D type-I α-tellurene/MoS2 heterostructure
Applying an external electric field can induce a transition from a type-I to a type-II band alignment in an α-tellurene/MoS2 heterostructure.
Highly bright and stable white-light-emitting cadmium-free Ag,Mn co-doped Zn–In–S/ZnS quantum dots and their electroluminescence
Optimized white light emitting Ag,Mn:Zn–In–S quantum dots (QDs) were synthesized via a simple, scalable, reproducible, and low-cost one-pot non-injection synthetic approach.
High efficiency red emission carbon dots based on phenylene diisocyanate for trichromatic white and red LEDs
Recently, carbon dots have emerged as novel luminous materials due to their excellent luminous performance.
A self-powered electronic-skin for real-time perspiration analysis and application in motion state monitoring
A self-powered electronic-skin has been fabricated for real-time perspiration analysis of lactate, glucose, Na+, K+, urea and uric acid concentration.
Microwave-assisted synthesis of cyclen functional carbon dots to construct a ratiometric fluorescent probe for tetracycline detection
Fluorescent carbon dots were synthesized by microwave irradiation of cyclen and citric acid to construct a ratiometric probe for tetracycline detection.
Small morphology variations effects on plasmonic nanoparticle dimer hotspots
Beyond the ideal nanosphere dimer hotspot model, small morphology variations can have great influences on the plasmonic properties.
Efficient deep blue electroluminescence with CIEy ∈ (0.05–0.07) from phenanthroimidazole–acridine derivative hybrid fluorophores
Non-doped OLEDs using phenanthroimidazole–acridine derivatives PhImAc and PhImEn were designed and fabricated. They display deep blue with the CIE (0.15, 0.07) and (0.15, 0.05).
Lightweight and conductive carbon black/chlorinated poly(propylene carbonate) foams with a remarkable negative temperature coefficient effect of resistance for temperature sensor applications
Lightweight and biodegradable crosslinked CB/CPPC foams exhibit a remarkable nearly-linear negative temperature coefficient effect, which has great potential in temperature sensors.
Highly efficient polymer solar cells via multiple cascade energy level engineering
High-performance multiple blend polymer solar cells (PSCs) were firstly achieved via a multiple cascade energy level engineering strategy. By introducing more different bandgap copolymers with the similar molecular backbones, steadier energy level alignment and more charge transfer channels in devices could be realized.
Improved breakdown strength and energy storage density of a Ce doped strontium titanate core by silica shell coating
Improved breakdown strength and energy storage density of a core–shell structure with a high permittivity core and a highly insulating shell.
Three birds, one stone – photo-/piezo-/chemochromism in one conjugated nanoporous ionic organic network
A nanoporous material bearing a high ion density and inherent organic radical character was synthesized by a facile one-pot process, which exhibits photo-, piezo- and chemochromism, driven by the diverse electron transfer processes between the acceptor framework and different electron donors.
Tunable dual emission of Ca3Al4ZnO10:Bi3+,Mn4+via energy transfer for indoor plant growth lighting
The emission spectra of Bi3+ and Mn4+ co-doped Ca3Al4ZnO10 phosphors match well with the absorption spectra of plant pigments for indoor plant growth lighting.
Novel insight into the structure and properties of lead-free dielectric Sr3TiNb4O15
The octahedral tilting approach used in this study will be useful for many more tungsten-bronze-type structures with similar pseudo-symmetry problems.
Novel BaTiO3-based lead-free ceramic capacitors featuring high energy storage density, high power density, and excellent stability
High energy storage density and high power density combined in novel BaTiO3-based lead-free ceramics for multilayer ceramic capacitors.
Continuously fabricated transparent conductive polycarbonate/carbon nanotube nanocomposite films for switchable thermochromic applications
Flexible CNT-based transparent conductive films with strong adhesion were continuously fabricated by a home-made roll-to-roll (R2R) spraying method and used as a smart window with switchable transparency.
Floating-non-solvent method for inducing the formation of highly crystalline conjugated polymer nanofibrils in the solution state for high-performance organic transistors
In this study, we report a facile dip-coating printing method using a floating non-solvent technique to produce highly crystalline nanofibrils.
A new up-conversion charging concept for effectively charging persistent phosphors using low-energy visible-light laser diodes
We report an up-conversion charging (UCC) technique, which offers a new way to study persistent luminescence and utilize persistent phosphors
The effect of 1D- and 2D-polymorphs on organic single-crystal optoelectronic devices: lasers and field effect transistors
The 2D-microdisk polymorphs of TPDSB exhibit a higher photoluminescence quantum yield (Φ), a lower laser threshold and a higher carrier mobility than 1D-microwire polymorphs.
About this collection
This on-going web collection features all the articles published in Journal of Materials Chemistry C in 2018 marked as HOT, as recommended by referees. Congratulations to all the authors whose articles are featured!