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Themed collection 2018 Journal of Materials Chemistry C HOT Papers

61 items
Accepted Manuscript - Review Article

Anthracene-based Semiconductors for Organic Field-Effect Transistors

Review Article

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.

Graphical abstract: Graphene nanohybrids: excellent electromagnetic properties for the absorbing and shielding of electromagnetic waves
Review Article

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.

Graphical abstract: Light-emitting diodes of colloidal quantum dots and nanorod heterostructures for future emissive displays
Review Article

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.

Graphical abstract: Magnetic iron oxide nanoparticles as T1 contrast agents for magnetic resonance imaging
Communication

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.

Graphical abstract: Covalent organic frameworks: a platform for the experimental establishment of the influence of intermolecular distance on phosphorescence
Accepted Manuscript - Communication

Origin of Green Persistent Luminescence of Eu-Doped SrAl2O4 from Multiconfigurational Ab Initio Study of 4f7->4f65d1 Transitions

Communication

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.

Graphical abstract: Small molecule donors based on benzodithiophene and diketopyrrolopyrrole compatible with both fullerene and non-fullerene acceptors
Communication

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.

Graphical abstract: The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties
Communication

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.

Graphical abstract: A novel water-soluble and self-doped conducting hybrid copolymer: poly(4-oxybenzenesulfonic acid)phosphazene-g-poly(3,4-ethylenedioxythiophene)
Communication

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.

Graphical abstract: Controllable growth of C8-BTBT single crystalline microribbon arrays by a limited solvent vapor-assisted crystallization (LSVC) method
Communication

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.

Graphical abstract: Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature
Communication

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.

Graphical abstract: Topologically protected hybrid states in graphene–stanene–graphene heterojunctions
Communication

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.

Graphical abstract: Mimosa inspired bilayer hydrogel actuator functioning in multi-environments
Accepted Manuscript - Paper

Synthesis of Single-particle Level White-Light-Emitting Carbon Dots via a One-Step Microwave method

Open Access Accepted Manuscript - Paper

Three Birds, One Stone – Photo-/Piezo-/Chemochromism in One Conjugated Nanoporous Ionic Organic Network

Paper

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.

Graphical abstract: Floating-non-solvent method for inducing the formation of highly crystalline conjugated polymer nanofibrils in the solution state for high-performance organic transistors
Paper

Creating and stabilizing Bi NIR-emitting centers in low Bi content materials by topo-chemical reduction and tailoring of the local glass structure

Introducing nitride into a glass network creates and stabilizes Bi NIR-emitting centers, and therefore enhances their emission.

Graphical abstract: Creating and stabilizing Bi NIR-emitting centers in low Bi content materials by topo-chemical reduction and tailoring of the local glass structure
Accepted Manuscript - Paper

A low temperature and air-sinterable copper-diamine complex-based metal organic decomposition ink for printed electronics

Paper

TiO2/(BiO)2CO3 nanocomposites for ultraviolet filtration with reduced photocatalytic activity

TiO2 nanoparticles are typically used in sunscreens; however, they have been shown to exhibit cyto- and genotoxicity, which is related to the photocatalytic activity and the subsequent formation of reactive oxygen species when exposed to ultraviolet radiation.

Graphical abstract: TiO2/(BiO)2CO3 nanocomposites for ultraviolet filtration with reduced photocatalytic activity
Paper

Highly-stable, green-solvent-processable organic thin-film transistors: angular- vs. linear-shaped carbazoledioxazine derivatives

Linear-shaped carbazoledioxazines can be processed from green solvents and exhibit a two orders of magnitude higher mobility than their angular-counterpart.

Graphical abstract: Highly-stable, green-solvent-processable organic thin-film transistors: angular- vs. linear-shaped carbazoledioxazine derivatives
Paper

Simultaneously improving the mechanical strength and electromagnetic interference shielding of carbon/carbon composites by electrophoretic deposition of SiC nanowires

Electrophoretic deposition of SiC nanowires in C/C composites reinforces the matrix and creates additional conduction paths in the matrix.

Graphical abstract: Simultaneously improving the mechanical strength and electromagnetic interference shielding of carbon/carbon composites by electrophoretic deposition of SiC nanowires
Accepted Manuscript - Paper

A Multi-Stimuli Responsive Bidirectional Bending Actuator Based on Polypyrrole and Agar Nanocomposite

Paper

High-performance yellow- and orange-emitting diodes based on novel sublimable cationic iridium(III) complexes by ligand control

High-performance yellow and orange luminescence is achieved using novel sublimable cationic iridium(III) complexes with bulky cyclometalated ligands.

Graphical abstract: High-performance yellow- and orange-emitting diodes based on novel sublimable cationic iridium(iii) complexes by ligand control
Paper

Elucidating the key role of fluorine in improving the charge mobility of electron acceptors for non-fullerene organic solar cells by multiscale simulations

F–π interactions play a key role in improving the electron mobility of fluorinated electron acceptors for non-fullerene OSCs.

Graphical abstract: Elucidating the key role of fluorine in improving the charge mobility of electron acceptors for non-fullerene organic solar cells by multiscale simulations
Paper

Highly thermal-stable and transparent silver nanowire conductive films via magnetic assisted electrodeposition of Ni

AgNW-Based TCFs derived from the electrodeposition of a metal in a magnetic field show excellent transmittance, conductivity, reliability and thermal stability.

Graphical abstract: Highly thermal-stable and transparent silver nanowire conductive films via magnetic assisted electrodeposition of Ni
Accepted Manuscript - Paper

Monolayer Tellurene—Metal Contacts

Paper

A facile, robust and scalable method for the synthesis of Pd nanoplates with hydroxylamine as a reducing agent and mechanistic insights from kinetic analysis

We report a simple and robust method for the synthesis of Pd nanoplates using hydroxylamine as a reductant and kinetic analysis.

Graphical abstract: A facile, robust and scalable method for the synthesis of Pd nanoplates with hydroxylamine as a reducing agent and mechanistic insights from kinetic analysis
Accepted Manuscript - Paper

Efficient red AIEgens based on tetraphenylethene: Synthesis, structure, photoluminescence and electroluminescence

Paper

Stable narrowband red emission in fluorotellurate KTeF5:Mn4+via Mn4+ noncentral-site occupation

Unlike conventional central-site doping, here, we firstly report a stable Mn4+ emission in novel fluorotellurate KTeF5via Mn4+ abnormally equivalent and penta-coordinated octahedral vertical-site occupation.

Graphical abstract: Stable narrowband red emission in fluorotellurate KTeF5:Mn4+via Mn4+ noncentral-site occupation
Paper

Controllable growth of NixCoySe films and the influence of composition on the photovoltaic performance of quasi-solid-state dye-sensitized solar cells

Controllable growth of ternary NixCoySe films and the influence of composition on the photovoltaic performance of quasi-solid-state dye-sensitized solar cells.

Graphical abstract: Controllable growth of NixCoySe films and the influence of composition on the photovoltaic performance of quasi-solid-state dye-sensitized solar cells
Paper

Low resistivity HfNx grown by plasma-assisted ALD with external rf substrate biasing

Application of an external rf substrate bias during the H2 plasma half cycle leads to a significant decrease in film resistivity resulting from a major reduction of O content and an increase in the Hf3+ oxidation state fraction in HfNx thin films

Graphical abstract: Low resistivity HfNx grown by plasma-assisted ALD with external rf substrate biasing
Paper

A beryllium-free deep-UV nonlinear optical material CsNaMgP2O7 with honeycomb-like topological layers

Beryllium-free deep-UV nonlinear optical CsNaMgP2O7 consists of honeycomb-like topological layers, which should be attributable to an enhanced second harmonic generation response.

Graphical abstract: A beryllium-free deep-UV nonlinear optical material CsNaMgP2O7 with honeycomb-like topological layers
Paper

Confining excitation energy of Er3+-sensitized upconversion nanoparticles through introducing various energy trapping centers

Various energy trapping centers are employed to simultaneously suppress concentration quenching and tune luminescence output through efficiently confining the excitation energy in Er3+-sensitized upconversion nanoparticles.

Graphical abstract: Confining excitation energy of Er3+-sensitized upconversion nanoparticles through introducing various energy trapping centers
Paper

Quantitative analysis of improved bending fracture behavior of large-scale graphene monolayer-intervened flexible oxide thin films

A graphene layer improves the fracture resistance of flexible transparent conducting films by ∼61%.

Graphical abstract: Quantitative analysis of improved bending fracture behavior of large-scale graphene monolayer-intervened flexible oxide thin films
Paper

Structure engineering: extending the length of azaacene derivatives through quinone bridges

A novel quinone bridged large azaacene exhibits an electron mobility of 0.22 cm2 V−1 s−1 through molecular stacking structure engineering.

Graphical abstract: Structure engineering: extending the length of azaacene derivatives through quinone bridges
Paper

Studies of spin related processes in fullerene C60 devices

We have investigated spin related processes in fullerene C60 devices using a several experimental techniques, which include magnetic field effect of photocurrent and electroluminescence in C60-based diodes; spin polarized carrier injection in C60-based spin-valves; and pure spin current generation in NiFe/C60/Pt trilayer devices.

Graphical abstract: Studies of spin related processes in fullerene C60 devices
Paper

Effects of meso-M(PPh3)2Cl (M = Pd, Ni) substituents on the linear and third-order nonlinear optical properties of chalcogenopyrylium-terminated heptamethines in solution and solid states

Pd(PPh3)2Cl groups hinder aggregation and afford promising solid-state NLO properties.

Graphical abstract: Effects of meso-M(PPh3)2Cl (M = Pd, Ni) substituents on the linear and third-order nonlinear optical properties of chalcogenopyrylium-terminated heptamethines in solution and solid states
Paper

Homometallic Ln(III)-complexes from an ILCT ligand with sensitized vis-NIR emission, excitation-dependent PL color tuning and white-light emission

Homometallic Ln(III)-complexes with sensitized vis-NIR emission and excitation-dependent PL color tuning were achieved from an ILCT ligand.

Graphical abstract: Homometallic Ln(iii)-complexes from an ILCT ligand with sensitized vis-NIR emission, excitation-dependent PL color tuning and white-light emission
Paper

Singlet exciton fission in a linear tetracene tetramer

Efficient iSF was achieved within this tetracene tetramer with the triplet state quantum yield as high as 128% and a lifetime >100 μs in solution.

Graphical abstract: Singlet exciton fission in a linear tetracene tetramer
Paper

A vertically layered MoS2/Si heterojunction for an ultrahigh and ultrafast photoresponse photodetector

The CVD prepared V-MoS2 heterojunction photodetector exhibits excellent photoelectric performances in a wide broadband with high responsivity, large detectivity, and ultrafast response speed.

Graphical abstract: A vertically layered MoS2/Si heterojunction for an ultrahigh and ultrafast photoresponse photodetector
Paper

Optical performance improvement in hydrothermal ZnO/graphene structures for ultraviolet lasing

We fabricated ZnO microcavities on graphene and constituted a graphene/ZnO/Cu hybrid F–P cavity and realized high Q single mode lasing.

Graphical abstract: Optical performance improvement in hydrothermal ZnO/graphene structures for ultraviolet lasing
Paper

Achieving long-term zero-thermal-quenching with the assistance of carriers from deep traps

Achieving long-term zero-thermal-quenching in a Sr3SiO5:Eu2+,Tm3+-based wLED.

Graphical abstract: Achieving long-term zero-thermal-quenching with the assistance of carriers from deep traps
Paper

Bi3.25La0.75Ti2.5Nb0.25(Fe0.5Co0.5)0.25O12, a single phase room temperature multiferroic

A new single phase Aurivillius structured ceramic shows room temperature multiferroic behavior.

Graphical abstract: Bi3.25La0.75Ti2.5Nb0.25(Fe0.5Co0.5)0.25O12, a single phase room temperature multiferroic
Paper

A green synthetic route to the highly efficient K2SiF6:Mn4+ narrow-band red phosphor for warm white light-emitting diodes

A green synthetic route to the highly efficient K2SiF6:Mn4+ narrow-band red phosphor for warm white light-emitting diodes.

Graphical abstract: A green synthetic route to the highly efficient K2SiF6:Mn4+ narrow-band red phosphor for warm white light-emitting diodes
Paper

Ge-based bipolar small molecular host for highly efficient blue OLEDs: multiscale simulation of charge transport

Investigating three novel Ge-based high-performance bipolar hosts for deep blue phosphorescent OLEDs by multiscale simulation of charge transport.

Graphical abstract: Ge-based bipolar small molecular host for highly efficient blue OLEDs: multiscale simulation of charge transport
Paper

Mechanical strain engineering of dielectric tunability in polycrystalline SrTiO3 thin films

Relative permittivity, εr, and dielectric tunability, η, of polycrystalline ST films optimised via compressive stresses, ex: ST films on MgO/Pt substrates.

Graphical abstract: Mechanical strain engineering of dielectric tunability in polycrystalline SrTiO3 thin films
Paper

A turn-on type mechanochromic fluorescent material based on defect-induced emission: implication for pressure sensing and mechanical printing

Defect-induced emission enables a turn-on mechanochromic fluorescence for pressure sensing and mechanical printing.

Graphical abstract: A turn-on type mechanochromic fluorescent material based on defect-induced emission: implication for pressure sensing and mechanical printing
Paper

A first-principles study of a real energetically stable MoN2 nanosheet and its tunable electronic structure

A non-MoS2-like geometry is identified as the real energetically stable structure for MoN2 nanosheets, which possess tunable electronic properties.

Graphical abstract: A first-principles study of a real energetically stable MoN2 nanosheet and its tunable electronic structure
Paper

Simple and rapid cleaning of graphenes with a ‘bubble-free’ electrochemical treatment

A simple and rapid ‘bubble-free’ electrochemical cleaning process is developed to clean and de-dope unintentionally contaminated and doped graphenes.

Graphical abstract: Simple and rapid cleaning of graphenes with a ‘bubble-free’ electrochemical treatment
Paper

High-efficiency vertical-structure GaN-based light-emitting diodes on Si substrates

High-quality GaN-based light-emitting diode (LED) wafers have been grown on Si substrates by metal–organic chemical vapor deposition by designing epitaxial structures with AlN/Al0.24Ga0.76N buffer layers and a three-dimensional (3D) GaN layer.

Graphical abstract: High-efficiency vertical-structure GaN-based light-emitting diodes on Si substrates
Paper

Solution-processed ternary p-type CuCrO2 semiconductor thin films and their application in transistors

In this study, transparent p-type CuCrxOy semiconductor thin films were fabricated using spin coating and integrated as channel layers in thin-film transistors (TFTs).

Graphical abstract: Solution-processed ternary p-type CuCrO2 semiconductor thin films and their application in transistors
Paper

Site-selective growth of Ag nanocubes for sharpening their corners and edges, followed by elongation into nanobars through symmetry reduction

We demonstrate the sharpening of truncated Ag nanocubes using site-selective growth, followed by their elongation into nanobars through symmetry reduction.

Graphical abstract: Site-selective growth of Ag nanocubes for sharpening their corners and edges, followed by elongation into nanobars through symmetry reduction
Paper

Synthesis and remarkable mechano- and thermo-hypsochromic luminescence of a new type of DPP-based derivative

A new DPP dye emits a yellow color in solution but can aggregate into high contrast NIR, red, and yellow solids.

Graphical abstract: Synthesis and remarkable mechano- and thermo-hypsochromic luminescence of a new type of DPP-based derivative
Paper

Super-compatible functional boron nitride nanosheets/polymer films with excellent mechanical properties and ultra-high thermal conductivity for thermal management

Super compatible functional boron nitride (FBN) nanosheets and polyvinyl alcohol (PVA) composite films are well fabricated by facile aqueous vacuum filtering.

Graphical abstract: Super-compatible functional boron nitride nanosheets/polymer films with excellent mechanical properties and ultra-high thermal conductivity for thermal management
Paper

A combinational molecular design to achieve highly efficient deep-blue electrofluorescence

A novel high-performance deep-blue emitting material TPEA that combines the merits of AIE and TTF plus HLCT is demonstrated.

Graphical abstract: A combinational molecular design to achieve highly efficient deep-blue electrofluorescence
Paper

Designing properties of (Na1/2Bix)TiO3-based materials through A-site non-stoichiometry

Modification of microstructure and electrical properties due to high A-site diffusion of cations induced by non-stoichiometry during processing.

Graphical abstract: Designing properties of (Na1/2Bix)TiO3-based materials through A-site non-stoichiometry
Paper

An effective strategy to enhance the dielectric constant of organic semiconductors – CPDTTPD-based low bandgap polymers bearing oligo(ethylene glycol) side chains

Gradually increasing dielectric constants (up to 6.3) are obtained for a series of PCPDTTPD polymers.

Graphical abstract: An effective strategy to enhance the dielectric constant of organic semiconductors – CPDTTPD-based low bandgap polymers bearing oligo(ethylene glycol) side chains
Paper

Designed synthesis, morphology evolution and enhanced photoluminescence of a highly efficient red dodec-fluoride phosphor, Li3Na3Ga2F12:Mn4+, for warm WLEDs

A novel red phosphor Li3Na3Ga2F12:Mn4+ was obtained at room temperature and its luminescence efficiency has been improved by optimizing the synthetic process.

Graphical abstract: Designed synthesis, morphology evolution and enhanced photoluminescence of a highly efficient red dodec-fluoride phosphor, Li3Na3Ga2F12:Mn4+, for warm WLEDs
Paper

Stacked indium oxide/zinc oxide heterostructures as semiconductors in thin film transistor devices: a case study using atomic layer deposition

Multilayer indium/zinc oxide thin films show high performance in transistor device performance depending on their layer sequence and thickness.

Graphical abstract: Stacked indium oxide/zinc oxide heterostructures as semiconductors in thin film transistor devices: a case study using atomic layer deposition
Paper

Photoinduced degradation from trace 1,8-diiodooctane in organic photovoltaics

Residual 1,8-Diiodooctane (DIO), a common solvent additive used in organic photovoltaic (OPV) films, is found to cause photodegradation even at ppm concentrations.

Graphical abstract: Photoinduced degradation from trace 1,8-diiodooctane in organic photovoltaics
Paper

Efficient polymer solar cells based on a cathode interlayer of dicyanomethylenated indacenodithiophene derivative with large π-conjugation and electron-deficient properties

Two water/alcohol-soluble indacenodithiophene (IDT) based cathode interlayers (CILs) were synthesized and employed in the fabrication of high-performance polymer solar cells (PSCs).

Graphical abstract: Efficient polymer solar cells based on a cathode interlayer of dicyanomethylenated indacenodithiophene derivative with large π-conjugation and electron-deficient properties
61 items

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!

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