Themed collection Journal of Materials Chemistry C HOT Papers

Free deformable, stretchable soft electronic devices are targeted by utilizing alkyl-π functional molecular liquids.

This Perspective discusses the developments, opportunities, and challenges in the context of the use of alkyne-based organic semiconductors in photovoltaic devices.

The solution-processed fabrication of perovskite light-emitting diodes (PeLEDs) is highly topical. Here, we summarize the recent advances, discuss the challenges and propose the outlooks for their further development.

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.

Metal halide perovskite light-emitting diodes (PeLEDs) have aroused extensive attention due to their high color purity, wide color gamut, and low-cost solution processability, showing great potential for application in next-generation high-definition display and solid-state lighting.

Mid-infrared (MIR) radiation has a wide range of applications in military, environmental monitoring, and medical treatment.

The direct detection method possesses the ability of both content detection of uranyl ions and structural analysis of uranyl compounds in nmol level, while the indirect detection method can detect the uranyl ions as low as fmol level.

This review summarizes recent advances in developing high-efficiency upconversion nanoparticles and nanomaterials for photovoltaic application.

Monitoring CO₂ levels in the atmosphere as well as in work place environments is strictly regulated.

This review summarizes the recent advances in low-cost materials for OSCs from the aspects of the synthetic method, active materials, interfacial materials and processing solution.

Blueprints for the chemical design of biodegradability and biocompatibility for organic semiconductors. Recent trends and future areas of interest are discussed.

The paper reviews synthetic design and optoelectronic properties of π-conjugated molecules and polymers based on the acenaphthylene building block.

Layered hybrid perovskites incorporating organic moieties with enhanced functionalities within the perovskite scaffold enable the development of advanced multifunctional materials.

In this review, we summarize the recent progress on how to circumvent FLP between 2D TMD semiconductors and metals.

Solid solutions in molecular conductors are key tools for investigating their conducting and magnetic properties, addressing phase transitions, chemical pressure effects and band filling manipulation.

Processing strategies and methodologies are reviewed that allow the control and assessment of polymorph formation in semiconducting small molecules using 5,11-bis(triethylsilylethynyl) anthradithiophene (TES ADT) as a model material system.

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.

In this review, we provide an overview of the most recent advances in fabrication techniques for microelectrodes/micropatterns of CPs and highlight the most prominent applications of these in bioelectronic devices.

In this review, the recent progress of different types of electrolyte dielectric materials for electrolyte gated transistors (EGTs) is summarized, along with the structures and operation of EGTs and their relevant applications.

A comprehensive review summarising the methods, reagents, properties and applications of electrospun magnetic nanomaterials.

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.

We reviewed recent advances in the field of 2D ferromagnets, including their atomic structures, physical properties, and potential applications, and highlight the strategies to enhance ferromagnetism.

In this overview, state-of-the art studies focused on WLENFs constructed and by electrospinning are systematically summarized.

Organic–inorganic hybrid LEDs are reviewed from the perspectives of organic and inorganic functional materials, interfacial engineering, device structures and device physics.

A quaternary IR-NLO thioantimonate, K₂Ag₃Sb₃S₇, designed using an aliovalent-cation-substitution-induced (ACSI) strategy based on the centrosymmetric K₂Sb₄S₇ is reported.

The commercial dye Nile Red has been used to produce two Ru(II) polypyridyl complexes with long-lived “dark” (non-emissive) triplet excited states. The latter localised on the Nile Red moiety are used for efficient singlet oxygen generation.

In this study, we introduced an ester-substituted thiophene into the benzo[1,2-b:4,5-b′]difuran (BDF)-based polymer (PDiFPBDF-TBz, F13) backbone to synthesize a novel polymer donor (F13-R) to develop the highly-efficient as-cast PSCs.

An in situ prepared BaZr_xFe_12−xO₁₉/Fe₃O₄/BaZrO₃ composite exhibits an outstanding millimeter wave absorption performance at around 35 GHz by gaining both the advantages of hard/soft magnetic exchange coupling and electromagnetic coupling.

Two dimensional Co₂Se₃ nanosheet simultaneously possesses out-of-plane electric polarization, ferromagnetism, half-metallic transportation and piezoelectricity, rendering it a promising candidate for advanced multiferroic applications.

2D perovskite narrowband photodetector arrays have been fabricated in this work, which can realize optical imaging with the ability of wavelength discrimination.

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.

A stable 2D multiferroic VOF monolayer is proposed, in which ferroelectric and ferromagnetic orders coexist with a negative Poisson's ratio.

The spacer ligand acts as a buffer layer and plays a crucial role in modulating the contact properties of metal–2D perovskite interfaces.

A γ-In₂Se₃/Si heterostructure phototransistor presents a high responsivity arising from the photogating effect. It shows potential applications in real-time and accurate health monitoring, such as heart rate detection.

Plasmon-induced charge separation (PICS) was achieved with compound nanomaterials containing MoO₂, which has a plasmon resonance wavelength close to gold.

The influence of a triphenylphosphine oxide (TPPO) additive on the morphology and emission of FAPbBr₃ perovskites is investigated by transient and temperature-dependent emission spectra, which indicates the defect passivation through P=O coordination.

Blue-emissive Cs₃Cu₂I₅ and yellow-emissive CsCu₂I₃ microscale crystals were synthesized by a facile supersaturated recrystallization method at room temperature, and a stable WLED was demonstrated by using both materials as down-conversion phosphors.

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.

TIPS-pentacene single crystals crack or delaminate with increasing tensile or compressive bending strain, respectively. Even though, the electrical performance of the flexible transistors shows negligible decline due to the intact transport channel.

Non-toxic Ba-SMOFs assembled by luminescent multidentate naphthalene-sulfonate moieties exhibit merited intrinsic energy resolution for X-ray dosage detection.

We report the construction of highly efficient In₂O₃@g-C₃N₄ heterostructures with intimate contact for photocatalytic H₂ production through decoration of g-C₃N₄ ultrathin nanosheets on the surface of MOF-derived hexagonal In₂O₃ microrods.

A doped-crystalline material based on two organic small molecules exhibits visible long-persistent luminescence performance in aqueous solution or in air.

A methylthio-functionalized metal–organic framework shows high stability, sensitivity (as low as 30 ppm) and distinguished color (dark brown) sensing towards Ag(I) ions by MOF-crystal colorimetry.

New Hofmann-type metal–organic frameworks display rare and complete ligand exchange induced single crystal to single crystal transformations from 3D frameworks to 2D layers, accompanied by magnetic properties transition from two-step SCO behavior to hysteretic SCO behavior.

We report a strategy for aligned packaging of in situ grown CsPbBr₃ nanorods within polystyrene nanofibers for enhanced polarized luminescence properties, whose polarization ratio is 2.6 times that of the conventional counterpart.

Nanomaterials of CaSc₂O₄:Yb/Ln (Ln = Tb, Eu) were investigated for dual-mode luminescence generation, where strong upconversion with a green/red intensity ratio as high as 45 and downshifting blue emissions were obtained at the characteristic working wavelengths of Yb³⁺ (980 nm) and Tb³⁺ (280 nm), respectively.

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.

A doped crystalline thin-film deep-blue organic light-emitting diode (C-OLED) with high photon output and a low driving voltage is created through employing highly ordered and high-mobility organic semiconductor layers.

A photochromic single-molecule magnet with large magnetization change (+20.9%) at room temperature and paramagnetic to ferromagnetic transition was successfully achieved.

A DUV-transparent SHG crystal, Ba₃[Al(PO₄)₃], was designed using a modified anionic condensation strategy. Ba₃[Al(PO₄)₃] exhibited a balanced overall performance due to its condensed quartz-type _∞[Al(PO₄)₃]⁶⁻ chains.

Novelty: a revisable binary to ternary memory behavior is achieved by photoelectric synergy controls in one photochromic polymer device, which greatly enhances storage density and has great potential in optical recognition for artificial retinas.

A new strategy for noninvasive temperature probing, applying the temperature-induced configuration crossover between the thermally-coupled ⁶P_7/2 and 5d₁ levels of Eu²⁺ is presented.

A dual emission ratiometric fluorescent probe, Eu@Tt-TPA, was successfully prepared by modifying a hydrogen-bonded organic framework (Tt-TPA) with Eu³⁺ to realize the simultaneous detection of methylamine (MA) in liquid and vapor states.

The DHP derivative has more excellent NLO properties, while the CPD derivative possesses TADF properties, showing an interesting “seesaw” phenomenon.

Herein, we report a green surface-state-controlling strategy to achieve the regulation of the photoluminescence (PL) properties of carbon dots (CDs) via fluorine (F)-doping techniques.

The Seebeck coefficient of the SbCl₃-doped PbSe–AgSbSe₂ alloy is at a high level because of the temperature-dependent carrier concentration. In addition, PbSe–AgSbSe₂–SbCl₃ exhibits very low thermal conductivity.

Through the mixed-cation alloying strategy, we have successfully introduced secondary DMA⁺ cations in perovskite cages to design a new 2D Ruddlesden–Popper hybrid perovskite, showing great potential in photodetection and polarization detection.

The strategic implementation of using a core-substituted naphthalene diimide derivative to electropolymerize an ionized polymer for a better electrochromic performance is proposed.

We report and shed light on the intrinsic thermal transport features of the biphenylene network (BPN) and hydrogenated BPN (HBPN). Both four-phonon scattering and hydrogenation can significantly affect the lattice thermal conductivity (κ) of BPN.

The fluorescence of the solvothermal CNDs investigated is dominated by small molecules and their photoproducts, not by emission from sp² domains. Singlet oxygen production, however, depends on the graphitic cores.

2D intrinsic semiconducting ferromagnets with robust magnetic anisotropy and a high Curie temperature are of great importance for the development of high-performance flexible spintronic nanodevices.

Centimeter-sized Zn(NH₃)CO₃ is a “three-in-one” UV nonlinear optical crystal, featuring a Chinese-knot-like framework and great optical performance.

A facile molecular engineering strategy is used to obtain microcrystals of [Ru(bpy)₃]²⁺ derivatives with well-defined morphology and multicolor phosphorescence and electrochemiluminescence.

Boosting photocatalytic performance for selective oxidation of biomass-derived pentoses and hexoses to lactic acid using hierarchically porous Cu/Cu₂O/CuO@CA.

First-time spectroscopic and computational investigations to elucidate the role of a dicationic salt in the optical, electrical and electronic properties of a triarylamine hole transport material, SFX-MeOTAD.

An ultra-high quantum yield Tb-MOF with phenolic hydroxyl as the recognition group for a highly selective and sensitive detection of Fe³⁺.

A tailored thermal treatment on aligned P(NDI-T2) films, simultaneously inducing lamellar thickening and improved alignment, is demonstrated. Enhanced transport properties are observed and univocally addressed to the augmented orientational order.

A rare dysprosium layered complex undergoing humidity induced single-crystal to single-crystal transformation and the synergetic switch of the dynamic magnetic behaviour and proton conductivity has been successfully constructed.

The development of a highly sensitive luminescent thermometer requires a deep understanding of the correlation between the structural properties of the host material and the temperature-dependent luminescence properties of lanthanide emitters embedded in these matrices.

Sulfur-doping ultrathin 2D Ni–V MMO nanosheets can be derived from LDHs. The obtained 2NiV-S-400 with rich oxygen vacancy exhibits the best OXD/POD-like and antibacterial activity by generating of ˙OH and ˙O₂⁻ radical with low level of H₂O₂.