n-Type organic electrochemical transistors: materials and challenges
The rise of n-type organic electrochemical transistors (OECTs): from materials to applications.
Hot carrier solar cells and the potential of perovskites for breaking the Shockley–Queisser limit
We review the cooling of charge carriers in metal halide perovskites for the use in hot carrier solar cells.
The researcher's guide to solid-state dye-sensitized solar cells
Solid-state dye-sensitized solar cell components, materials, architectures and interfaces are comprehensively reviewed.
Supramolecular design principles for efficient photoresponsive polymer–azobenzene complexes
Recent progress in photoresponsive polymers based on three common supramolecular design strategies, namely ionic, hydrogen and halogen bonding, is reviewed.
2D material liquid crystals for optoelectronics and photonics
The merging of the materials science paradigms of liquid crystals and 2D materials promises superb new opportunities for the advancement of the fields of optoelectronics and photonics. In this review, we summarise the development and applications of 2D material liquid crystals for optoelectronics and photonics.
Perspective on carbazole-based organic compounds as emitters and hosts in TADF applications
Perspective covering carbazole-containing emitters and hosts for third generation TADF (thermally-activated delayed fluorescence) OLED technology along with computational benchmark studies.
Process–property relationship in high-k ALD SrTiO3 and BaTiO3: a review
This review addresses recent approaches for atomic layer deposition (ALD) that are closely related to the electrical properties of ultrathin SrTiO3 and BaTiO3 films.
Stable antiferromagnetic nanocrystals for room temperature applications: the case of iron nitride
We characterise the magnetism of self-assembled FenN nanocrystals, combining core level spectroscopy with first-principles theory. Ferromagnetic and antiferromagnetic phases are found, which are magnetically ordered at room temperature.
Complete self-recovery of photoluminescence of photodegraded cesium lead bromide quantum dots
Self-readsorption of surface ligands completely restores the photoluminescence of CsPbBr3 quantum dots damaged by excitation light.
Compositionally tunable ternary Bi2(Se1−xTex)3 and (Bi1−ySby)2Te3 thin films via low pressure chemical vapour deposition
[MCl3(EnBu2)3] (M = Sb, Bi; E = Se, Te) enable CVD growth of ternary Bi2(Se1−xTex)3 and (Bi1−ySby)2Te3 thin films with good compositional, structural and morphological control.
Highly stable doping of a polar polythiophene through co-processing with sulfonic acids and bistriflimide
Upon doping with sulfonic acids and bistriflimide the polar polythiophene p(g42T-T) exhibits a maximum conductivity of 120 S cm−1 and can be hot-pressed into self-standing, flexible films.
Synthesis, crystal structure, magnetic and electronic properties of the caesium-based transition metal halide Cs3Fe2Br9
A 0D perovskite-related material Cs3Fe2Br9 is shown to have a low bandgap of 1.65 eV and exhibit antiferromagnetic behaviour.
From anthraquinone to heterocoronene as stable red chromophore
A new heterocoronene-based chromophore was synthesized via a two-step reaction and showed similar photostability to perylenetetracaboxdiimides.
Polymer colour converter with very high modulation bandwidth for visible light communications
We report the synthesis, photophysics and application of a novel semiconducting polymer as a colour converter for high speed visible light communication.
Electronic structure design for nanoporous, electrically conductive zeolitic imidazolate frameworks
Electronic structure calculations are used to develop design rules for enhanced electrical conductivity in zeolitic imidazolate frameworks.
Influence of nanoscale order–disorder transitions on the magnetic properties of Heusler compounds for spintronics
Modifications in nanoscale chemical order can tune the magnetic properties of Co2FeSixAl1−x, indicating disorder as a potential engineering tool.
Rapid laser-induced photochemical conversion of sol–gel precursors to In2O3 layers and their application in thin-film transistors
We report the development of indium oxide (In2O3) transistors via a single step laser-induced photochemical conversion process of a sol–gel metal oxide precursor.
A novel angularly fused bistetracene: facile synthesis, crystal packing and single-crystal field effect transistors
Simply “migrating” the aromatic sextet of cata-condensed 2D PAH with the same number of fused benzene rings affords novel organic semiconductors with different properties.
Temperature-insensitive electro-optic response of polymer-stabilized blue phases
Polymer-stabilized blue phase liquid crystal in-plane switching cell.
Cobalt germanide precipitates indirectly improve the properties of thermoelectric germanium antimony tellurides
Cobalt germanide precipitates indirectly influence the thermoelectric performance of germanium antimony tellurides. They stabilize microstructures as shown by analyses of water-quenched vs. melt-spun and spark plasma sintered samples.
Fabrication of SnS nanowalls via pulsed plasma-enhanced chemical vapor deposition using a metal–organic single-source precursor
Vaporization of the solid bis(diethyldithiocarbamato)tin(II) into pulsed RF plasma leads to the growth of crystalline, highly conductive SnS nanowalls.
Layered manganese bismuth tellurides with GeBi4Te7- and GeBi6Te10-type structures: towards multifunctional materials
Non-stoichiometry is the key to single-phase layered compounds in the system Mn/Bi/Te, which is essential to evaluate their multifunctional properties.
Revealing resonance effects and intramolecular dipole interactions in the positional isomers of benzonitrile-core thermally activated delayed fluorescence materials
Rather than donor–acceptor dihedral angles, the TADF performance of DMAC–BZN positional isomers is instead controlled by differences in acceptor strength arising from π-system electron density – along with a through-space dipole interaction.
Impact of proton-induced transmutation doping in semiconductors for space applications
Proton irradiation typical of detector lifetime in orbit does not change semiconductor chemistry sufficiently through transmutation to alter device performance.
Locking excitons in two-dimensional emitting layers for efficient monochrome and white organic light-emitting diodes
Organic light-emitting diodes combine ultra-thin non-doped emitting layers for simplified and flexible design and charge-transfer-type recombination layers for exciton management.
Structural coloration by inkjet-printing of optical microcavities and metasurfaces
Flexible, scalable to large areas and low cost fabrication of structurally colored microcavities and plasmonic cavity pixels based on inkjet-printing.
Beyond efficiency: phenothiazine, a new commercially viable substituent for hole transport materials in perovskite solar cells
For the first time in perovskite solar cells, phenothiazine has been introduced as a low cost substituent to replace the commonly-used dimethoxydiphenylamine, which constitutes almost 90% of the final cost of hole transport materials.
Tin(IV) dopant removal through anti-solvent engineering enabling tin based perovskite solar cells with high charge carrier mobilities
We report the need for careful selection of anti-solvents for Sn-based perovskite solar cells fabricated through the commonly used anti-solvent method, compared to their Pb-based counterparts.
Alkyl chain assisted thin film growth of 2,7-dioctyloxy-benzothienobenzothiophene
An understanding of the thin film growth modes of substrate-induced polymorphs allows a deeper insight into the origin of this class of materials.
Multifunctional nanopatterned porous bismuth ferrite thin films
Nanopatterned porous thin films of bismuth ferrite (BiFeO3) with porosity perpendicular to the plane are prepared by an evaporation-induced self-assembly methodology using nitrate metal salts and a commercial block copolymer as a structure-directing agent.
Reversible switching of the Au(111) work function by near infrared irradiation with a bistable SAM based on a radical donor–acceptor dyad
We describe the reversible modification of the Au(111) work function by near infrared irradiation with a bistable SAM.
Inkjet-printed polymer-based electrochromic and electrofluorochromic dual-mode displays
Investigation of the electro(fluoro)chromic properties of PIF8-TAA and its application in inkjet-printed dual-mode displays.
The influence of molecular geometry on the efficiency of thermally activated delayed fluorescence
We report a strategy for positively influencing the conformation of thermally activated delayed fluorescence (TADF) molecules containing phenothiazine and dibenzothiophene-S,S-dioxide units.
Tetrathiafulvalene–oligofluorene star-shaped systems: new semiconductor materials for fluorescent moisture indicators
Increased emission through the oxidation of tetrathiafulvalene redox-active centres in star-shaped oligofluorene structures.
Low thermal conductivity and promising thermoelectric performance in AxCoSb (A = V, Nb or Ta) half-Heuslers with inherent vacancies
Microstructure and point defects are central to thermoelectric performance in vacancy half-Heuslers.
Single-molecule conductance oscillations in alkane rings
We investigate the single-molecule electrical conductance of alkane rings connected to gold electrodes and demonstrate that their logarithmic conductances are ocillatory functions of length.
Improved photostability in ternary blend organic solar cells: the role of PCBM
Identifying the best ratios of components in ternary blend polymer solar cell could lead to more photostable organic solar cells.
Two-dimensional eclipsed arrangement hybrid perovskites for tunable energy level alignments and photovoltaics
With tunable electronic properties and energy alignments of organic/inorganic components, (AEQT)BX4 opens up the possibility to theoretically tailor charge separation/recombination.
On the anomalous optical conductivity dispersion of electrically conducting polymers: ultra-wide spectral range ellipsometry combined with a Drude–Lorentz model
Ultra-wide range spectral range ellipsometry sheds light on the anomalous optical conductivity of conducting polymers.
Highly efficient platinum-based emitters for warm white light emitting diodes
The new compounds [Pt(R-C^C*)(P^P)]PF6 as blue or orange emitters were combined with the red emitter [Pt(bzq)(CN)(CNXyl)] to fabricate two-component WOLEDs and pcWLEDs. They rendered warm white light with optimal CRI and Duv values and a great range of nominal CCT: 4000 K–2000 K.
Substantial thermal conductivity reduction in mischmetal skutterudites MmxCo4Sb12 prepared under high-pressure conditions, due to uneven distribution of the rare-earth elements
Low-cost n-type Mischmetal-filled CoSb3 skutterudites with elemental filling-fraction separation, prepared at high pressure, exhibit markedly low lattice thermal conductivity.
Influence of the aqueous solution composition on the morphology of Zn1−xMgxO films deposited by spray pyrolysis
Compact films and nanorod films of Zn1−xMgxO with specific Mg contents were deposited by spray pyrolysis of varyingly composed aqueous solutions
Organic electrochemical transistors from supramolecular complexes of conjugated polyelectrolyte PEDOTS
Tuning the polyelectrolyte/hydrophobic-counterion ratio in PEDOTS : DOA complexes allows to control doping, wettability and porosity, thus modulating ionic transport in OECTs.
Luminescence tuning with excellent colour homogeneity and steadiness using fluorescent molecular liquids
Luminescence tuning with excellent homogeneity and steadiness of the resulting colour is guaranteed by chemical modification of fluorescent molecular liquid.
Tailored fluorescent solvatochromic test strips for quantitative on-site detection of gasoline fuel adulteration
Tailored fluorescent solvatochromic test strips and smartphone read-out enable reliable quantitative detection of gasoline adulteration and on-site quality monitoring.
Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes
Anchoring a down-converting chromophore to a MOF scaffold enhances the efficiency of the resulting hybrid LED by negating aggregation-induced quenching.
The effect of manganese oxidation state on antiferromagnetic order in SrMn1−xSbxO3 (0 < x < 0.5) perovskite solid solutions
Two ranges of mixed-valence manganese (Mn3+/Mn4+) SrMn1−xSbxO3 solid solution and corresponding magnetic structures were described for the first time.
Ligand-free preparation of polymer/CuInS2 nanocrystal films and the influence of 1,3-benzenedithiol on their photovoltaic performance and charge recombination properties
Modification of ligand-free polymer/CuInS2 absorber layers led to improved solar cell performance and charge carrier lifetimes.
Physical vapour deposition of cyanine salts and their first application in organic electronic devices
A volatile high molecular weight organic salt semiconductor is presented, allowing the introduction of physical vapour deposition techniques in cyanine dye salt semiconductors.
Flexible nanophosphor films doped with Mie resonators for enhanced out-coupling of the emission
Herein, we present a general method to prepare self-standing flexible photoluminescent coatings of controlled opacity for integration into light-emitting diodes (LEDs) employing cost-effective solution-processing methods.
Tailorable, 3D structured and micro-patternable ionogels for flexible and stretchable electrochemical devices
A new family of ionogels for electrochemical devices was developed from a mixture of multifunctional thiols, diacrylate and triethylamine in the presence of ionic liquid using Michael addition chemistry.
All-optical switching in dye-doped DNA nanofibers
Electrospun fibers made of DNA semi-intercalated with a push–pull, luminescent nonlinear pyrazoline derivative are introduced as novel all-optical switches.
Nanocrystalline Ga2O3 films deposited by spray pyrolysis from water-based solutions on glass and TCO substrates
High-quality Ga2O3 films are obtained by spray pyrolysis from aqueous solutions through optimization of the solution composition and the spraying process parameters.
Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
Ionomer (TPQPCl)/graphite nanoplatelet-coated electrodes are developed as a new sensing platform for amperometric detection of ascorbic acid.
Synthesis of Bi2−2xSb2xS3 (0 ≤ x ≤ 1) solid solutions from solventless thermolysis of metal xanthate precursors
Tris(O-ethylxanthate)bismuth(III) (1) and tris(O-ethylxanthate)antimony(III) (2) were synthesized and used as precursors for the preparation of Bi2−2xSb2xS3 alloys (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) using melt reactions.
Defect formation in In2O3 and SnO2: a new atomistic approach based on accurate lattice energies
A new consistent interatomic force field for In2O3 and SnO2.
Ionic-to-electronic coupling efficiency in PEDOT:PSS films operated in aqueous electrolytes
This work highlights the role of PEDOT:PSS composition in determining the efficiency of coupling between ionic and electronic charges.
Direct and continuous hydrothermal flow synthesis of thermochromic phase pure monoclinic VO2 nanoparticles
The first direct synthesis of pure thermochromic VO2(M) nanoparticles with particle sizes below 50 nm by continuous hydrothermal flow synthesis (CHFS).
Byproduct-free curing of a highly insulating polyethylene copolymer blend: an alternative to peroxide crosslinking
An alternative crosslinking concept for the insulation of HVDC power cables that uses click chemistry is presented.
Electronic transport in CdSe nanoplatelet based polymer fibres
Hybrid fibres consisting of CdSe nanoplatelets in a polymer shell are prepared and charge carrier transport across these structures is proven photoelectrochemically.
Donor–acceptor photoexcitation dynamics in organic blends investigated with a high sensitivity pump–probe system
The excited state dynamics of conjugated polymers are studied at photon fluences relevant for photovoltaic applications.
Intermolecular interactions in molecular crystals and their effect on thermally activated delayed fluorescence of helicene-based emitters
In crystals of donor–acceptor helicene molecules, thermally activated delayed fluorescence (TADF) is strongly enhanced by the presence of occluded hexane molecules.
Temperature dependence of the photo- and electroluminescence of poly(p-phenylene vinylene) based polymers
We show that the exciton transport and decay processes in two poly(p-phenylene vinylene) (PPV) based semiconducting polymers exhibit distinct temperature dependence based on the energetic disorder of the polymer.
Controlling excimer formation in indolo[3,2,1-jk]carbazole/9H-carbazole based host materials for RGB PhOLEDs
Excimer formation in indolo[3,2,1-jk]carbazole based host materials is controlled by molecular design and the developed materials are employed in efficient red, green and blue PhOLED devices.
Colloidal tin sulfide nanosheets: formation mechanism, ligand-mediated shape tuning and photo-detection
Colloidal materials of tin(II) sulfide (SnS), as a layered semiconductor with a narrow band gap, are emerging as a potential alternative to the more toxic metal chalcogenides (PbS, PbSe, CdS, and CdSe) for various applications such as electronic and optoelectronic devices.
Thermoelectric stability of Eu- and Na-substituted PbTe
The out-of-equilibrium samples show highest values of figure-of-merit, ZTmax, up to 2.1.
The influence of molecular conformation on the photophysics of organic room temperature phosphorescent luminophores
Tuning of photophysical properties by conformational control with dual RT phosphorescence in metal-free organic emitters.
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.
New red-emitting Schiff base chelates: promising dyes for sensing and imaging of temperature and oxygen via phosphorescence decay time
New complexes of Zn(II), Pd(II) and Pt(II) with Schiff bases are prepared in a one step reaction and show photophysical properties particularly interesting for applications in optical sensors.
Weak thermal quenching of the luminescence in the Ca3Sc2Si3O12:Ce3+ garnet phosphor
We report results of the luminescence properties of the three garnet type phosphors Ce3+-doped Ca3Sc2Si3O12 (CSSO:Ce3+), Sr3Y2Ge3O12 (SYG:Ce3+) and Y3Al5O12 (YAG:Ce3+), investigated using optical spectroscopy techniques and vacuum referred binding energy (VRBE) diagram analysis.
About this collection
This collection contains recent Open Access articles published by Journal of Materials Chemistry C, the home for high impact applications, properties and synthesis of exciting new materials for optical, magnetic and electronic devices. New articles will be added to this webpage as soon as possible after publication.