Themed collection Recent Open Access Articles
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.
2D material hybrid heterostructures: achievements and challenges towards high throughput fabrication
2D materials display unique optical/electronic/mechanical properties and a manipulable bidimensional morphology. High throughput assembly processes can be applied for their large scale manufacturing leading to integration into mass produced products.
Quantum materials with strong spin–orbit coupling: challenges and opportunities for materials chemists
The physics of materials with strong spin–orbit coupling is currently highly topical. Here we present an accessible outline of the chemistry of these materials, issues in determining their structure–property relationships, and opportunities afforded.
Halide perovskites scintillators: unique promise and current limitations
The origins of the remarkable performance of halide perovskite scintillators are presented, along with solutions to the challenges facing the field, followed by a discussion of applications that will benefit from the unique properties of these materials.
Perspectives for polychlorinated trityl radicals
The multifunctional character and stability of PTM radicals makes them appealing in a broad range of fields, from active components in molecular optoelectronics to active agents in bio-applications.
Pitfalls on evaluating pair exchange interactions for modelling molecule-based magnetism
Human know-how is crucial to cross-examine and challenge computations before trusting any result for modelling magnetic properties in molecule-based materials.
2,3-Thienoimide-ended oligothiophenes as ambipolar semiconductors for multifunctional single-layer light-emitting transistors
In view of developing multifunctional OLETs, 2,3-thienoimide-ended oligothiophenes are proposed as ideal candidates to effectively ensure good ambipolar field-effect mobility, self-assembly capability and high luminescence in solid state.
The effect of side chain engineering on conjugated polymers in organic electrochemical transistors for bioelectronic applications
The versatile synthetic side chain toolbox assists in tuning the OECT parameters by controlling material properties of organic mixed conductors. In this review we critically summarise and evaluate various side chains used throughout OECT materials.
Advances in applying C–H functionalization and naturally sourced building blocks in organic semiconductor synthesis
This review presents the recent advances in the synthesis of organic semiconductors using C–H functionalization and naturally sourced building blocks to facilitate the large-scale production and commercialization of organic semiconductors.
Metal–organic framework based systems for CO2 sensing
Monitoring CO2 levels in the atmosphere as well as in work place environments is strictly regulated.
High-throughput virtual screening for organic electronics: a comparative study of alternative strategies
We review how high throughput virtual screening can been used to navigate the landscape of materials for organic electronics.
Computational techniques for characterisation of electrically conductive MOFs: quantum calculations and machine learning approaches
Computational approaches accelerate design and discovery of conductive metal–organic frameworks (MOFs).
Latest directions in p-type transparent conductor design
We present an overview of historical and emerging p-type TCMs. We critically assess the p-type halide perovskites returned from high-throughput screening studies. Earth abundant non-oxides are promising candidates for p-type TCM applications.
Nonlinear optical probes of nucleation and crystal growth: recent progress and future prospects
Nonlinear optical techniques are emerging as powerful in-situ probes of crystallization processes due to their inherent sensitivity to crystal structure and morphology.
Towards practical and sustainable SERS: a review of recent developments in the construction of multifunctional enhancing substrates
Here, we review the state-of-the-art progress in the construction of smart multifunctional enhancing substrates. These substrates hold the key to achieving sustainability and widespread applications of SERS.
A review of functional linear carbon chains (oligoynes, polyynes, cumulenes) and their applications as molecular wires in molecular electronics and optoelectronics
This review presents the multi-faceted applications of oligoynes in molecular electronics and optoelectronics, as well as recent insights for the design and properties of sp-hybridised carbon wires.
A review on electrospun magnetic nanomaterials: methods, properties and applications
A comprehensive review summarising the methods, reagents, properties and applications of electrospun magnetic nanomaterials.
n-Type organic semiconducting polymers: stability limitations, design considerations and applications
This review summarises high performing n-type polymers for use in organic thin film transistors, organic electrochemical transistors and organic thermoelectric devices with a focus on stability issues arising in these electron transporting materials.
Layer-by-layer fabrication of organic photovoltaic devices: material selection and processing conditions
Layer-by-layer (LbL) processing, otherwise known as sequential deposition, is emerging as the most promising strategy for fabrication of active layers in organic photovoltaic (OPV) devices on both laboratory and industrial scales.
CsPbI3 nanocrystal films: towards higher stability and efficiency
A review on strategies to improve stability, optical properties and device efficiency of red-perovskite nanocrystal layers.
Structure-induced optoelectronic properties of phenothiazine-based materials
Phenothiazine (PTZ)-based materials have recently received considerable interest owing to their intriguing optoelectronic properties, low-cost, versatility of functionalization, and commercial availability.
Thermal properties of metal-halide perovskites
The thermal properties of metal-halide perovskites are reviewed with respect to experimental findings, theoretical insights, dimensionalities, and phase transitions.
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.
Discovering structure–property relationships for the phonon band structures of hydrocarbon-based organic semiconductor crystals: the instructive case of acenes
A systematic analysis of the phonon bands calculated using dispersion-corrected density functional theory for crystalline acenes reveals analogies between the phonons and classical oscillator models. Based on these, the evolution of the materials’ properties can be rationalised.
In0.5Ga0.5N layers by atomic layer deposition
We present an ALD approach to metastable In1−xGaxN with 0.1 < x < 0.5 based on solid In- and Ga-precursors that were co-sublimed into the deposition chamber in one pulse.
Direct laser writing of vapour-responsive photonic arrays
Combining structural design (led by FDTD simulations) and innovative hydrogel materials (via ionic liquid cosolvents), we fabricate dynamic responsive photonic arrays.
Colloidal synthesis of lead-free Cs2TiBr6−xIx perovskite nanocrystals
First colloidal synthesis of pure and mixed bromide–iodide cesium titanium perovskite nanocrystals. By adjusting the halide precursors’ ratio, the bandgap can be tuned from 2.3 eV to 1.2 eV.
Lamellar silver thiolate coordination polymers with reversibly switchable blue-to-near infrared optical transitions
Lamellar silver thiolates (Ag-MPA) possess reversible temperature dependent blue-to-near infrared optical transitions resulting from metallophilic interactions in the layers and conformational stabilization of the ligands.
Exploring swift-heavy ion irradiation of InGaN/GaN multiple quantum wells for green-emitters: the use of Raman and photoluminescence to assess the irradiation effects on the optical and structural properties
Xe SHI irradiation of InGaN/GaN MQWs leads to surface damage and intermixing at the interfaces. The introduced defects cause a strong quenching of the luminescence as well as a change in the excitation mechanisms.
Controlling through-space and through-bond intramolecular charge transfer in bridged D–D′–A TADF emitters
Donor–donor′–acceptor molecules where the donor′ bridges the donor and acceptor have different possible interaction pathways for charge transfer.
Pixelated full-colour small molecule semiconductor devices towards artificial retinas
Variable bandgap conjugated donor–acceptor small molecule thin films show absorption spectra similar to those of human eye's photoreceptors. Photoactive devices interfaced with a bio-electrolyte reveal capacitive photocurrent response making them suitable for future full-colour retinal prosthesis.
Influencing prototropy by metal ion coordination: supramolecular transformation of a dynamer into a Zn-based toroidal species
The work provides a previously unknown example of the desymmetrisation of an organic component resulting from the metal-ion induced tautomerisation which led to the generation of a new type of toroidal coordination species at a solid–liquid interface.
Electronic properties of phases in the quasi-binary Bi2Se3–Bi2S3 system
We investigated the quasi-binary Bi2Se3–Bi2S3 system and experimentally demonstrated the compositional range of existence of the topological surface states.
Mechanisms for collective inversion-symmetry breaking in dabconium perovskite ferroelectrics
We show that the combination of molecular shape and strain coupling drives the emergence of polarisation in methyldabconium perovskite ferroelectrics.
Anisotropic silica colloids for light scattering
Anisotropic silica particles were used as model scattering enhancers and directly compared to their spherical counterparts. Furthermore, silica rods were assembled into micron-sized scattering particles. This allows for use in pigment formulations.
Engineering Sr-doping for enabling long-term stable FAPb1−xSrxI3 quantum dots with 100% photoluminescence quantum yield
The Pb substitution in quantum dots (PQDs) with lesser toxic metals has been widely searched to be environmentally friendly, and be of comparable or improved performance compared to the lead-perovskite.
Enhanced 1.54 μm luminescence of a perfluorinated erbium complex sensitized by perfluorinated Pt(II) and Zn(II) phthalocyanines with 980 nm emission
Metallophthalocyanines with ∼980 nm emission show sensitization effects on an erbium complex. A long lifetime of 1.05 ms, a PLQY of 13%, Er3+ 1.5 μm emission enhancement of 81 times are obtained in the perfluorinated organic erbium co-doped system.
Biodegradable inkjet-printed electrochromic display for sustainable short-lifecycle electronics
We report on inkjet-printed, wearable electrochromic displays with certified biodegradability according to the international standard 14855 for short-lifecycle applications.
Two-dimensional monoelemental germanene nanosheets: facile preparation and optoelectronic applications
Few-layer 2D germanium nanosheets (GeNS) are obtained via a facile liquid-phase exfoliated method and fabricated as electrode materials to assemble self-powered high performance photo-electrochemical (PEC) type photodetectors.
Efficient third harmonic generation from FAPbBr3 perovskite nanocrystals
Experimental evidence and characterization of nonlinear third harmonic generation from hybrid FAPbBr3 perovskite nanocrystals embedded in a porous thin film demonstrate a new potential application of these semiconductors.
Synthesis of small Ag–Sb–Te nanocrystals with composition control
Ternary telluride nanocrystals have gained increasing interest as materials for thermoelectric, optoelectronic, and phase-change memory applications. This paper presents an amide-promoted synthesis for Ag–Sb–Te colloidal nanocrystals with accurate composition control.
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.
Effect of the nanoparticle size on thermometric properties of a single-band ratiometric luminescent thermometer in NaYF4:Nd3+
Due to the fact that temperature is one of the key physical quantities determining the occurrence of physical phenomena, chemical reactions or biological processes, one of the important issues to be solved is the precise determination of temperature.
The surprising effects of sulfur: achieving long excited-state lifetimes in heteroleptic copper(I) emitters
The impact of the different chalcogens on the photophysical properties of [Cu(phen)(P^P)]+ complexes in which phen has MeO or MeS groups in the 2,9-, 3,8- or 4,7-positions is described.
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.