Towards organic neuromorphic devices for adaptive sensing and novel computing paradigms in bioelectronics
We present an overview of the latest studies on organic neuromorphic and smart sensing devices and highlight the potential of these concepts to enhance the interaction efficiency between electronics and biological substances.
n-Type organic electrochemical transistors: materials and challenges
The rise of n-type organic electrochemical transistors (OECTs): from materials to applications.
Ga2O3 polymorphs: tailoring the epitaxial growth conditions
We review the nucleation and growth of different Ga2O3 polymorphs with several techniques, giving practical guidelines for their synthesis.
Two-dimensional conjugated polymer films via liquid-interface-assisted synthesis toward organic electronic devices
Development of conjugated polymers in two dimensions via liquid-interface-assisted synthesis as active layers for use in electronic devices.
Photoelectron spectroscopy on single crystals of organic semiconductors: experimental electronic band structure for optoelectronic properties
Methodologies and experimental achievements for exploration into electronic band structures of organic semiconductor and hybrid perovskite single crystals are reviewed.
Lanthanide-based inorganic–organic hybrid materials for photon-upconversion
Photon-upconversion materials are capable of converting low energy infrared light into higher energy visible or ultraviolet light.
Metal particle-free inks for printed flexible electronics
The development of metal particle-free inks is reviewed, with particular attention on their formulation, patterning and post-processing techniques.
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.
Charge-transfer engineering strategies for tailored ionic conductivity at oxide interfaces
Based on the example of the p-type LaAlO3/SrTiO3 interface, we discuss charge-transfer phenomena that tailor the ionic conductivity along oxide heterointerfaces, by providing a confined space-charge layer as channel for oxygen ion conduction.
A bifacial colour-tunable system via combination of a cholesteric liquid crystal network and hydrogel
We present a colour tunable system obtained by combining a humidity-responsive cholesteric liquid crystal network and hydrogel coatings, in a diligently designed cell-geometry.
Prolonged and efficient near-infrared photoluminescence of a sensitized organic ytterbium-containing molecular composite
A novel approach to sharp and persist NIR luminescence at 1 μm wavelength.
Utilizing Diels–Alder “click” chemistry to functionalize the organic–organic interface of semiconducting polymers
An all-solution-based modular functionalization of a cross-linked polymer semiconductor interface is presented. The thus covalently introduced moieties can be utilised for tailor-made organic–organic interfaces in organic optoelectronic devices.
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.
Supramolecular oligourethane gel as a highly selective fluorescent “on–off–on” sensor for ions
An AIE-active oligourethane gel was designed and synthesized, and it was demonstrated that the gel is a highly-selective and reversible sensor for Fe3+, HSO4− and F− ions.
A cryogenic solid-state reaction at the interface between Ti and the Bi2Se3 topological insulator
Titanium deposited on the Bi2Se3 surface reacts (even at 130 K) and forms new phases.
Structural and electronic evolution in the Cu3SbS4–Cu3SnS4 solid solution
Experimental and theoretical studies of the order–disorder transition in the Cu3SbS4–Cu3SnS4 solid solution reveal evidence for S2−δ species.
Nanoporous gold peel-and-stick biosensors created with etching inkjet maskless lithography for electrochemical pesticide monitoring with microfluidics
Flexible nanoporous gold and silver leaf are patterned without photolithography and adhered to microfluidics to create disposable multiplexed electrochemical biosensors.
Pb(Fe0.5Nb0.5)O3–BiFeO3-based multicalorics with room-temperature ferroic anomalies
The search for new single-phase multicaloric materials, combining electrocaloric and magnetocaloric effects, is just at its beginning.
Tuning photoelectrochemical performance of poly(3-hexylthiophene) electrodes via surface structuring
The aqueous faradaic and capacitive properties of an organic semiconductor photocathode are finely tuned by via microstructure and wettability.
Controlling the preferred orientation of layered BiOI solar absorbers
Bismuth oxyiodide has anisotropic transport properties, and optimal device performance requires control over its preferred orientation. We find that this preferred orientation can be finely tuned through the precursor and substrate temperatures.
Interactive human–machine learning framework for modelling of ferroelectric–dielectric composites
Modelling of ferroelectric–dielectric composites by knowledge and data fusion, powered by inherent natures of learning abilities of humans and machines.
Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
Pyrolysis transformations, wrinkling and cracking, of thick solution-derived epitaxial superconducting YBa2Cu3O7 films are disclosed through in situ analytical studies.
Solution processed CZTS solar cells using amine–thiol systems: understanding the dissolution process and device fabrication
The dissolution process of CZTS constituent elements in a low-toxicity amine-thiol solvent system is analysed in detail through the use of ESI-MS and IRMPD techniques. Devices produced from this solution achieved efficiencies of up to 8.1%.
Monochromatic red electroluminescence from a homodinuclear europium(III) complex of a β-diketone tethered by 2,2′-bipyrimidine
A new bright red emitting complex [Eu(btfa)3bpm]2 has been synthesized. The photophysical properties were analyzed and it was utilized as an emitter to fabricate red OLEDs.
Near infrared organic photodetectors based on enhanced charge transfer state absorption by photonic architectures
Solution processed organic photodetectors with a nanostructured active layer in the shape of a photonic crystal exhibit an improved NIR response, below the band gap of the active layer materials, that can be tuned by varying the lattice parameter.
Molecular anchoring stabilizes low valence Ni(I)TPP on copper against thermally induced chemical changes
The strong molecule-surface interaction, followed by charge transfer at the interface, plays a fundamental role in the thermal stability of the layer by rigidly anchoring the porphyrin molecules to the copper substrate.
Small molecule additive for low-power accumulation mode organic electrochemical transistors
A small molecule additive, dodecylbenzenesulfonate (DBSA), is added to the electrolyte in OECTs to improve the device performance.
Epitaxial GaN using Ga(NMe2)3 and NH3 plasma by atomic layer deposition
GaN is grown epitaxially on 4H-SiC without buffer layer using ALD with Ga(NMe2)3 and NH3 plasma.
Tailoring liquid crystal honeycombs by head-group choice in bird-like bent-core mesogens
New non-centrosymmetric soft honeycomb lattices and superlattices are generated by self-assembly of novel mesogens promising applications as SHG and ferroelectric materials.
A probe of the radiation field magnetic component based on octahedral Yb3+ in the CaNbGa garnet – CNGG – single crystal
Magnetic-dipole photoluminescence from octahedral Yb3+ in CaNbGa garnet is proposed for sensing the magnetic component of plasmonic radiated fields.
Thermally evaporated methylammonium-free perovskite solar cells
Efficient thermally evaporated MA-free perovskite solar cells are developed by optimising their stoichiometry and annealing procedures.
2D layered perovskite containing functionalised benzothieno-benzothiophene molecules: formation, degradation, optical properties and photoconductivity
Using a solvent vapour annealing method, the crystallinity and photoconductivity of a 2D perovskite containing functionalized benzothieno[3,2-b]benzothiophene cations was enhanced.
Evaluating the role of phenethylamine iodide as a novel anti-solvent for enhancing performance of inverted planar perovskite solar cells
An alternate use of PEAI for enhancing the performance of inverted perovskite solar cells is demonstrated, by employing it as an anti-solvent during the perovskite fabrication process. The results show an enhancement of the open-circuit voltage as compared to the PEAI post treatment.
Dual-triggered nanoaggregates of cucurbituril and gold nanoparticles for multi-spectroscopic quantification of creatinine in urinalysis
A novel nanosensing platform was developed for the quantitative detection of creatinine of clinically relevant concentrations via UV-Vis spectroscopy and surface-enhanced Raman spectroscopy.
Nitrogen doped carbon aerogel composites with TiO2 and ZnO prepared by atomic layer deposition
A nitrogen doped carbon aerogel was used as a substrate for the atomic layer deposition of TiO2 and ZnO layers in various thicknesses.
Liquid crystalline copper(I) complexes with bright room temperature phosphorescence
Phosphorescence in the liquid crystal state with one of the highest quantum yield values, 42%, at room temperature is reported.
Green and stable processing of organic light-emitting diodes from aqueous nanodispersions
Robust method to process of OLEDs from water to avoid the use of hazardous solvents.
The effect of alkyl side chain length on the formation of two semi-crystalline phases in low band gap conjugated polymers
The length of solubilizing alkyl chains affects the formation, structure, and properties of two semi-crystalline phases in conjugated polymers.
Chemistry-dependent magnetic properties at the FeNi oxide–metal interface
Fe and Ni compounds and their oxides offer stoichiometry dependent magnetic properties, exploitable for the design of magnetic heterojunctions.
Bright and efficient red emitting electroluminescent devices fabricated from ternary europium complexes
[Eu(btfa)3DPEPO] and [Eu(nta)3DPEPO] are bright, red emitting complexes. They have been incorporated into single and double emitting layer electroluminescent devices.
A novel precursor towards buffer layer materials: the first solution based CVD of zinc oxysulfide
We report the first solution based deposition of zinc oxysulfide, Zn(O,S), thin films via aerosol-assisted chemical vapour deposition (AACVD) facilitated by the use of a specifically designed precursor: [Zn8(SOCCH3)12S2] (1).
Experimental corroboration of the thermoelectric performance of Bi2PdO4 oxide and Pb-doped derivatives
Predicted thermoelectric behaviour in Bi2PdO4 is experimentally realized. Pb doping enhances the power factor, with additional reduction of thermal conductivity.
Polymer field-effect transistor memory based on a ferroelectric nylon gate insulator
Ultra-smooth thin-films of nylons, one of the most successful commercialized polymers, have been realized for the application in ferroelectric field effect transistors.
Liquid phase exfoliation of MoS2 and WS2 in aqueous ammonia and their application in highly efficient organic solar cells
Simple, scalable and cost-effective synthesis of quality two-dimensional (2D) transition metal dichalcogenides (TMDs) is critical for fundamental investigations but also for the widespread adoption of these low-dimensional materials in an expanding range of device applications.
Uncovering details behind the formation mechanisms of Cu2ZnGeSe4 photovoltaic absorbers
An unusual solid–liquid–vapor extended growth mechanism is reported in the synthesis reaction of Cu2ZnGeSe4 absorbers through a specific break-off experiment.
Nanostructure stabilization by low-temperature dopant pinning in multiferroic BiFeO3-based thin films produced by aqueous chemical solution deposition
BiFeO3 single-phase thin films with an effective and tuneable multiferroic response are obtained in aqueous media by using mild processing conditions.
Plasma CVD of B–C–N thin films using triethylboron in argon–nitrogen plasma
We describe how chemical vapor deposition in the B–C–N material system can be done from triethylboron and a nitrogen–argon plasma. The films can be tuned to various morphologies and dielectric constants.
On the importance of pyrolysis for inkjet-printed oxide piezoelectric thin films
Inkjet printing is an attractive low-cost method for the deposition of piezoelectric lead zirconate titanate thin films. Pyrolysis temperature and time are crucial processing parameters to obtain dense layers with state-of-the-art properties.
Application of ultrasonic sprayed zirconium oxide dielectric in zinc tin oxide-based thin film transistor
A typical schematic for both spray pyrolysis set-up and ZrOx-based TFT device, and the corresponding electrical performance.
Strengthened relaxor behavior in (1−x)Pb(Fe0.5Nb0.5)O3–xBiFeO3
A systematic study of (1−x)Pb(Fe0.5Nb0.5)O3–xBiFeO3 (x = 0–0.5) was performed in order to investigate the strengthening of the relaxor properties when adding BiFeO3 into Pb(Fe0.5Nb0.5)O3 and forming a solid solution.
The optical signatures of molecular-doping induced polarons in poly(3-hexylthiophene-2,5-diyl): individual polymer chains versus aggregates
For molecularly doped poly(3-hexyl-thiophene) solvated individual chains can be unambiguously differentiated from aggregated ones by diagnostic polaron absorption.
Designing highly fluorescent, arylated poly(phenylene vinylene)s of intrinsic microporosity
The design of new arylated poly(phenylene vinylene) with high fluorescence efficiency (from AIE) and intrinsic microporosity (from SBET) is described.
Epitaxial growth of light-responsive azobenzene molecular crystal actuators on oriented polyethylene films
We report on the epitaxial growth of photoresponsive alkyl-substituted azobenzene fibres on top of uniaxially oriented polyethylene (PE) films.
Growth mechanism of epitaxial SrTiO3 on a (1 × 2) + (2 × 1) reconstructed Sr(1/2 ML)/Si(001) surface
A complete protocol for epitaxial integration of SrTiO3 with a (1 × 2) + (2 × 1) reconstructed Sr(1/2 ML)/Si(001) surface using the PLD method.
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.