Themed collection 2016 Journal of Materials Chemistry C Hot Papers
Polymeric electrochromic materials with donor–acceptor structures
Conjugated polymers with various electron-donor (D) and -acceptor (A) structures present diverse electrochemical, optical–physical and EC properties.
Narrow-band red-emitting Mn4+-doped hexafluoride phosphors: synthesis, optoelectronic properties, and applications in white light-emitting diodes
White light-emitting diodes (LEDs), including a blue-chip and yellow-emitting phosphor, are regarded as the new-generation of lighting sources because of their low energy consumption, long lifetime, and environmentally friendliness.
Recent advances in one-dimensional organic p–n heterojunctions for optoelectronic device applications
Recent advances in various one-dimensional organic heterojunctions including their synthesis and optoelectronic applications are summarized in this MiniRev article.
Evaluation of new color metrics: guidelines for developing narrow-band red phosphors for WLEDs
In this review, we summarize the recent findings on novel narrow-band red phosphors, the improved color and visual energy properties of these phosphors, and their ability to improve the optical properties of corresponding warm white pc-WLED lightings.
Far- and deep-ultraviolet spectroscopic investigations for titanium dioxide: electronic absorption, Rayleigh scattering, and Raman spectroscopy
Various far and deep ultraviolet spectroscopic investigations provide a basic understanding of the properties of TiO2 and promising possibilities for its applications.
Conjugated polymer-based electrochromics: materials, device fabrication and application prospects
The recent developments and trends of electrochromic conjugated polymers and their devices are highlighted in this review.
Recent advances in the Heusler based spin-gapless semiconductors
In this work, we review the progress on the Heusler-based materials with spin-gapless semiconducting behaviour, including half-Heusler compounds, full-Heusler compounds, DO3-type compounds, and LiMgPdSn-type quaternary Heusler compounds.
Printed photonic elements: nanoimprinting and beyond
In order to manufacture large-scale photonic devices of various dimensions at a low cost, a number of printing-based patterning techniques have been developed.
Silicon nanocrystals for the development of sensing platforms
In this mini review, we describe the significant advancements and future prospects of silicon nanocrystal based sensors.
Macrocyclic oligoarylamines as hole- and spin-containing scaffolds for molecule-based electronics
Macrocyclic oligoarylamines with a variety of arene-bridged patterns and their various features as hole- and spin-containing scaffolds are reviewed.
Alkyl length effects on solid-state fluorescence and mechanochromic behavior of small organic luminophores
This review focuses on alkyl length effects on solid-state fluorescence and mechanochromic behaviors, and the purpose is to arouse one's further attention to the alkyl-length effect in the design, synthesis and structure–property investigation of organic optoelectronic materials.
Colour tuning via crystalline site-selected energy transfer in a Sr2SiO4:Eu2+,Pr3+ phosphor
An alternative way to design new luminescent materials based on a site-selected energy transfer mechanism using high precision control of dopants.
A smart, stretchable resistive heater textile
A flexible, stretchable and breathable strip-shaped resistive heater textile is designed to demonstrate rapid thermal response and high stability.
Chiral nematic mesoporous magnetic ferrites
Hard templating of metal ferrites in the pores of a mesoporous silica yields nanomaterials with twisting magnetic structures. Using a variety of techniques, we demonstrate mesoporosity of the materials, the influence of calcination temperature on crystallinity and magnetic properties, and weak magnetic anisotropy.
A smart polymer with a high sensitivity to temperature and humidity based on polyacrylamide hydrogel doped with polyiodide
A smart polymer with a high sensitivity to temperature and humidity based on polyacrylamide hydrogel doped with polyiodide was fabricated.
Distinctive excitonic recombination in solution-processed layered organic–inorganic hybrid two-dimensional perovskites
Solution-grown two-dimensional (C6H5C2H4NH3)2PbI4 perovskites show three distinctive excitonic emissions.
Mechanoluminescence properties of Mn2+-doped BaZnOS phosphor
In this study, a novel Mn2+-doped wide band gap semiconductor, BaZnOS, demonstrates intense elastico-mechanoluminescence (EML) under pressure and friction, and the intensity of emission peaks is proportional to the applied compressive stress.
Insights into the correlation between the molecular conformational change and AIE activity of 2,5-bis(dimesitylboryl)-3,4-diphenylsiloles
Three novel AIEgens with low-lying LUMO energy levels are developed from p–π conjugated 2,5-bis(dimesitylboryl)-3,4-diphenylsiloles.
Reversible phase transition driven by order–disorder transformations of metal-halide moieties in [(C6H14)NH2]2·CuBr4
[(C6H14)NH2]2·CuBr4 (1), an organic–inorganic hybrid material, undergoes a reversible first-order phase transition around 194 K, triggered by the order–disorder transformation of metal-coordinated halogen atoms.
Large scale ZrS2 atomically thin layers
Large scale (up to 30 μm in lateral size) atomically thin hexagonal ZrS2 nanoflakes were prepared on traditional substrates (silica, sapphire) through a temperature dependent growth process.
Croconaines as molecular materials for organic electronics: synthesis, solid state structure and use in transistor devices
Indolenine-based croconaines are synthesized, their structure and solid state organization are investigated together with their electronic properties in thin-film transistors.
Light-blue thermally activated delayed fluorescent emitters realizing a high external quantum efficiency of 25% and unprecedented low drive voltages in OLEDs
A series of TADF emitters composed of pyrimidine/acridine moieties are developed. The optimized device realized its highest power efficiency of 62 lm W−1, a high external quantum efficiency of 25%, and a low turn-on voltage of 2.8 V with light-blue emission.
The continuous fabrication of mechanochromic fibers
New mechanochromic fibers are being continuously fabricated by coating concentrated core–shell microspheres onto elastic polymer fibers with low cost and high efficiency.
High performance near-infrared photodetectors based on ultrathin SnS nanobelts grown via physical vapor deposition
High performance near-infrared photodetectors based on ultrathin SnS nanobelts grown via physical vapor deposition, showing a high responsivity of 300 A W−1 and a fast decay time of 7 ms.
Calculation of dopant solubilities and phase diagrams of X–Pb–Se (X = Br, Na) limited to defects with localized charge
Performing thermodynamic calculations using only the expected charge states, excluding others, enables accurate prediction of experimentally measured doping efficiencies and phase diagrams.
Chiral fluorescent films of gold nanoclusters and photonic cellulose with modulated fluorescence emission
AuNC–CNC films demonstrate modulated fluorescence emission and lifetime decay due to the photonic crystal-photoemission coupling effect.
Dual-function optoelectronic polymer device for photoelectric conversion and electroluminescence
A dual-function optoelectronic device created through an all-solution process to realize both photoelectric conversion and electroluminescence.
A thermally activated delayed blue fluorescent emitter with reversible externally tunable emission
A TADF material containing a benzoylpyridine core and two meta carbazolyl groups shows externally switchable emission in the solid states and a high external quantum efficiency of 18.4% when used as a blue dopant in OLEDs.
Single-molecule magnetism arising from cobalt(II) nodes of a crystalline sponge
Single-ion magnet-like behaviour arises from CoII nodes of a crystalline sponge providing an avenue for the development of lightweight porous magnets.
Solution-processed vanadium oxide as an efficient hole injection layer for quantum-dot light-emitting diodes
Solution processed V2O5 is used as a replacement for PEDOT:PSS to improve the stability of QLEDs.
Emission color tuning through manipulating the energy transfer from VO43− to Eu3+ in single-phased LuVO4:Eu3+ phosphors
Recently, rare earth (RE) ion doped single-phased phosphors, which can emit tunable colors upon single wavelength excitation, have received a great deal of attention, but most of them involve multiple dopants as luminescence centers.
In-plane isotropic charge transport characteristics of single-crystal FETs with high mobility based on 2,6-bis(4-methoxyphenyl)anthracene: experimental cum theoretical assessment
In-plane isotropic charge transport single crystal FET with mobility exceeding 15 cm2 V−1 s−1 is obtained, the result is desirable in large-area single-crystal FET arrays.
Transferrable single crystalline 4H-SiC nanomembranes
In this work, we demonstrate a transferrable single crystalline 4H-SiC nanomembrane (SiC NM) released from a SiC-on-insulator (SiCOI) wafer.
Ground-state charge transfer for NIR absorption with donor/acceptor molecules: interactions mediated via energetics and orbital symmetries
This paper illustrates structure–property relationship of organic conjugated molecules in forming NIR-absorbing organic donor/acceptor charge-transfer complex at ground state.
Magnetically assembled iron oxide nanoparticle coatings and their integration with pseudo-spin-valve thin films
Magnetically assembled nanoparticle coatings modulate the properties and performances of pseudo-spin-valve thin films through nanoparticle–thin film interactions.
Tuning the properties of F:SnO2 (FTO) nanocomposites with S:TiO2 nanoparticles – promising hazy transparent electrodes for photovoltaics applications
Fabrication and innovative characterization of new hazy S:TiO2–FTO nanocomposites with lower Rs thanks to the conductive S:TiO2 nanoparticles.
An erasable photo-patterning material based on a specially designed 4-(1,2,2-triphenylvinyl)aniline salicylaldehyde hydrazone aggregation-induced emission (AIE) molecule
An aggregation-induced emission (AIE) molecule with reversible photochromic properties which can be served as a material for photo-patterning with erasable properties.
Direct synthesis of MOF-derived nanoporous CuO/carbon composites for high impedance matching and advanced microwave absorption
A simple strategy to fabricate porous CuO/carbon composites by nitrate impregnation into a MOF template is reported in this study. The obtained CuO/carbon samples show improved impedance matching and excellent microwave absorbing properties.
Synthesis, molecular and photovoltaic/transistor properties of heptacyclic ladder-type di(thienobenzo)fluorene-based copolymers
Synthesis of a new heptacyclic ladder-type di(thienobenzo)fluorene arene and its copolymers with photovoltaic/transistor properties is presented.
Plasma-assisted atomic layer deposition and post-annealing enhancement of low resistivity and oxygen-free nickel nano-films using nickelocene and ammonia precursors
Oxygen-free and low resistivity nickel (Ni) thin films are successfully prepared by plasma-assisted atomic layer deposition using nickelocene (NiCp2) as a metal precursor and ammonia (NH3) as a reactant.
High-efficiency polymer solar cells employing solution-processible and thickness-independent gallium-doped zinc oxide nanoparticles as cathode buffer layers
A kind of solution-processible gallium-doped ZnO nanoparticle is used as a cathode interfacial layer to fabricate polymer solar cells.
KPb2(PO3)5: a novel nonlinear optical lead polyphosphate with a short deep-UV cutoff edge
KPb2(PO3)5 shows moderate powder SHG intensities which are one half times that of KDP with a UV cut-off edge at 177 nm.
A series of iridophosphors with tunable excited states for hypoxia monitoring via time-resolved luminescence microscopy
A series of iridophosphors with different oxygen sensitivity has been designed and synthesized for hypoxia imaging by time-resolved luminescence techniques.
Exploring Mn2+-location-dependent red emission from (Mn/Zn)–Ga–Sn–S supertetrahedral nanoclusters with relatively precise dopant positions
Temperature-sensitive and Mn2+-location-dependent red emission from (Mn/Zn)–Ga–Sn–S supertetrahedral nanoclusters.
Comprehensive structure–function correlation of photoactive ionic π-conjugated supermolecular assemblies: an experimental and computational study
Experimental and computational structure–function study of an organic crystalline photoconductor composed of oppositely charged ionic porphyrins.
Selective metallization of alumina ceramics by inkjet printing combined with electroless copper plating
A convenient and efficient approach for selective metallization of alumina ceramics via inkjet printing followed by electroless plating was developed.
Electron-doping induced half-metallicity in one-dimensional Co-dithiolene molecular wires
Electron doping induced half-metallicity and ferromagnetism in a one dimensional Co-dithiolene molecular wire.
Structure and luminescence of a novel orange-yellow-emitting Ca1.62Eu0.38Si5O3N6 phosphor for warm white LEDs, discovered by a single-particle-diagnosis approach
A novel orange-yellow-emitting Ca1.62Eu0.38Si5O3N6 phosphor was discovered by a single-particle-diagnosis approach for UV, or blue LED driven white-LEDs.
Low-bandgap polymer electron acceptors based on double B ← N bridged bipyridine (BNBP) and diketopyrrolopyrrole (DPP) units for all-polymer solar cells
A new low-bandgap polymer electron acceptor based on the double B ← N bridged bipyridine unit is developed for all-polymer solar cells.
A bio-inspired cellulose nanocrystal-based nanocomposite photonic film with hyper-reflection and humidity-responsive actuator properties
The hyper-reflection and humidity-responsive behavior of a bio-inspired cellulose nanocrystal-based nanocomposite photonic film are described.
Freestanding electrochromic paper
A combination of nanofibrils and nanoparticles is used to fabricate polymer-based freestanding electrochromic materials which exhibit contrasts >20 in devices.
A set of manganese ion activated fluoride phosphors (A2BF6:Mn4+, A = K, Na, B = Si, Ge, Ti): synthesis below 0 °C and efficient room-temperature photoluminescence
Transition-metal ion activated solid-state phosphors are of particular interest for the development of LED-based white light sources.
Highly ordered bimolecular crystalline blends for low-noise and high-detectivity polymeric photodiodes
Suppressing noise current while maintaining high quantum efficiency is essential for realizing high-performance photodiodes.
Influence of ethynyl position on benzothiadiazole based D–A–π–A dye-sensitized solar cells: spectral response and photovoltage performance
Three D–A–π–A featured organic dyes has been designed for systematic insight into the effect of ethynyl positions on photovoltaic performances. Insertion of triple bond close to anchoring group exhibits better photovoltaic performance with higher open-circuit voltage.
Surface state controlled ultrahigh selectivity and sensitivity for UV photodetectors based on individual SnO2 nanowires
Surface states are utilized for the development of high-performance photodetectors based on individual SnO2 nanowires. Their photodetectivity strongly depends on externally applied bias voltage and illuminated light intensity.
A surface oxide thin layer of copper nanowires enhanced the UV selective response of a ZnO film photodetector
A UV detector with a high UV-visible rejection ratio achieved by a warped Schottky junction between Cu NWs and ZnO.
Tunable optical properties of OH-functionalised graphene quantum dots
Functionalisation with OH groups can tune the optical properties of Graphene oxide quantum dots (GO-QDs). Selective functionalisation of positions with large electron–hole separation offers a strategy to control the optical gap and photoluminescence properties.
Synthesis and photophysical properties of orthogonal rhodium(III)–carbon bonded porphyrin–aza-BODIPY conjugates
The facile synthesis of novel orthogonally arranged Rh(III) porphyrin–aza-BODIPY conjugates is described. The conjugates combine the advantages of the near-IR (NIR) absorption of aza-BODPY dye with the high triplet state of rhodium porphyrins.
New anisopleural spindle-like nonlinear optic (NLO) chromophores with a D–D′–π–A′–A or D–A′–π–D′–A structure: interesting optical behavior and DFT calculation results
S-Chromophores showed larger DFT calculation μβ and red-shifted λmax which indicated more effective intermolecular charge transfer.
Constructing small molecular AIE luminophores through a 2,2-(2,2-diphenylethene-1,1-diyl)dithiophene core and peripheral triphenylamine with applications in piezofluorochromism, optical waveguides, and explosive detection
Constructing small molecular AIE luminophores through heterocycle-based core with applications in piezofluorochromism, optical waveguide, and explosive detection.
CaAlSiN3:Eu2+ translucent ceramic: a promising robust and efficient red color converter for solid state laser displays and lighting
Translucent CaAlSiN3:Eu2+ ceramic with a unique microstructure shows enhanced thermal stability and high quantum efficiency.
An AlAs/germanene heterostructure with tunable electronic and optical properties via external electric field and strain
By means of comprehensive first-principles calculations, we investigate the stability, electronic and optical properties of an AlAs/germanene heterostructure.
Biodegradable oxide synaptic transistors gated by a biopolymer electrolyte
Green, biodegradable oxide synaptic transistors gated by biopolymer electrolytes were fabricated on a graphene coated PET substrate, mimicking several synaptic functions.
White light emission and temperature dependent chromaticity shifts by modification of luminescent ZrO(FMN) nanoparticles with rare earth halides
White light emission of composite suspensions is achieved by functionalization of ZrO(FMN) nanoparticles with lanthanide chlorides resulting in core–shell systems and a temperature dependent chromaticity shift.
Luminescence thermometry and imaging in the second biological window at high penetration depth with Nd:KGd(WO4)2 nanoparticles
Nd:KGd(WO4)2 nanoparticles were used as luminescent thermometers operating in the biological windows and NIR imaging with high penetration depth.
Tunable electronic structure and enhanced optical properties in quasi-metallic hydrogenated/fluorinated SiC heterobilayer
The electronic and optical properties of a hydrogenated/fluorinated SiC heterobilayer were systematically investigated by using density functional theory calculations.
Zinc diketonates as single source precursors for ZnO nanoparticles: microwave-assisted synthesis, electrophoretic deposition and field-effect transistor device properties
Variation of the ligand framework in 1,3-substituted zinc-diketonates provides a straightforward way to control size, morphology and electronic properties of semiconducting zinc oxide nanoparticles.
Tunable structural and magnetic properties of chemically synthesized dual-phase Co2NiGa nanoparticles
The chemically tuned structural and magnetic properties of dual-phase Co2NiGa shape memory Heusler nanoparticles.
Tuning charge transport from unipolar (n-type) to ambipolar in bis(naphthalene diimide) derivatives by introducing π-conjugated heterocyclic bridging moieties
The charge transport polarity of a series of acceptor–donor–acceptor (A–D–A) conjugated molecules can be tuned from unipolar (n-type) to ambipolar.
Coordination-bond-driven fabrication of crack-free photonic crystals
Centimeter-scale crack-free opal PC films are prepared in which the latex spheres are bound together through coordination bonds.
About this collection
This on-going web collection features all the articles published in Journal of Materials Chemistry C in 2016 marked as HOT, as recommended by referees. Congratulations to all the authors whose articles are featured!