Themed collection Journal of Materials Chemistry C HOT Papers

This work systematically summarizes recent advances in circularly polarized luminescence (CPL) based on aggregation-induced emission luminogens (AIEgens).

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.

The influence of precursor's chemical composition and side reactions on materials obtained by direct nanoprinting using FEBID techniques is discussed.

The thermal properties of metal-halide perovskites are reviewed with respect to experimental findings, theoretical insights, dimensionalities, and phase transitions.

This review explains the significance of ion-conductive solid seed-based synthesis from a mechanistic point of view to produce 1D and quasi-1D metal chalcogenide heterostructures and alloyed nanocrystals for applications in photocatalysis, photovoltaics, and photodetectors.

The advances in materials and applications of OTFT based chemical gas sensors.

Electrides are systems in which an electron is not bound to an atom and plays an active role in the structure. The three types of electron confinement have been confirmed.

A review of the recent developments of digital manufacturing methods of functional materials for wearable electronics applications.

State-of-the-art experiments and modeling, challenges, and future opportunities for developing high-performance interface materials for electronics thermal management.

In this review, recently reported strategies applied to control the morphology, molecule packing, and orientation of organic semiconductors thin films in the context of meniscus-guided coating techniques are summarized and discussed.

This review summarizes the progress in WOLEDs in recent years including all phosphorescent WOLEDs, hybrid WOLEDs, all fluorescence WOLEDs, doping-free WOLEDs, and single-emitter WOLEDs.

Currently, the fabrication of high-resolution OLEDs has many limitations. Electrochemical polymerization is an efficient way to fabricate conducting polymer films.

Black phosphorus analogues with excellent performance and high chemical stability hold great promise for practical applications.

High-mobility organic semiconductor CuPc is used to construct CN/CuPc heterojunction photocatalysts, showing enhanced photocatalytic performances. This work proves the prospect of high-mobility organic semiconductors in photocatalysis.

We report on inkjet-printed, wearable electrochromic displays with certified biodegradability according to the international standard 14855 for short-lifecycle applications.

Charge transport properties of the organic–inorganic MoO₃ : 6T CTC thin film can be dramatically tuned via rubbing. The effects of intermolecular interactions on these changes are studied in detail.

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.

Thieno[3,4-c]pyrrole-4,6-dione (TPD) was used as a π-bridge to synthesize A–π–D–π–A type NFAs, which realized a PCE of 10.4% by using PTQ10 as the electron donor.

Two different naphthyl substituted anthracene derivatives were synthesized. A tiny change of the substitution site of the naphthyl group leads to a significant difference of the molecular packing and exerts great impact on optoelectronic properties.

The poor operational stability remains a key challenge in perovskite light-emitting diodes. In this work, we investigate the detrimental effects of thermal-induced interface degradation on the device performance of perovskite light-emitting diodes.

This work presents a facile and controllable hydrothermal synthesis of ultrathin Bi₂O₂Se nanosheets. The Bi₂O₂Se nanosheets show good photoelectrochemical performance.

In situ synthesis of coaxial CsPbX₃@polymer (X = Cl, Br, I) fibers with significantly enhanced water stability by one-step electrospinning method.

Introducing some lanthanide ions with suitable ionic radius into octahedral [PbX₆] units to cause permanent lattice distortion and create potential fluctuations in the crystal lattice might facilitate the formation of STEs in CsPbX₃.

The SWNT/dmBT hybrid with a low barrier of 0.06 eV between SWNT and dmBT showed a maximum Seebeck coefficient of 78.5 μV K⁻¹ and a power factor of 183.9 μW m⁻¹ K⁻¹, 1.5 and 4.6 times higher compared to the SWNT/dCNBT with a high barrier of 0.64 eV.

Inorganic phototropic growth, a maskless, lithography-free process, enabled generation of CdSe films with highly ordered, optically-defined nanotextures over macroscale areas.

An automatically printable, classic, and frequently usable high-performance black visible-light-responsive paper has been fabricated.

Blatter based diradicaloids with p-diphenyl, fluorenyl and naphthyl bridges exhibit bridge dependent magnetic and optical properties.

A 3D printed, preferentially aligned, and alternate-layered polymer–carbon nanofiber microstructure for a high-performance chemical sensor has been fabricated.

A wavelength-tunable optical cavity was constructed using spin crossover molecules.

Covalent modification of BP nanosheets with triphenylamine molecules results in better air stability and electrochemical activity, thus enabling its potential use for nonvolatile resistive switching memory.

An all-organic fabric patch antenna is realized with the help of nanotemplates-assisted PEDOT:PSS conductive phase segregation, paving a new way for clothing integrated wearable electronic networks.

Here, we report two silver(I)–bismuth(III)-based layered lead-free double perovskites with direct band gaps and high moisture stability.

By combining high-performance n- and p-type single crystals with an air-gap dielectric, excellent anti-ambipolar transport with a small hysteresis was achieved.

Huge mechano-electrical performance obtained from net-like PVDF composites infiltrated with methylammonium lead iodide under vertical ultrasonic vibration, without additional poling.

Doped quasi-two-dimensional aniline heterostructures have been achieved through interfacial assembly with impressive conductive and magnetic properties.

Vacuum deposited 2D perovskites show high crystallinity at low temperatures. Mixed halide and wide bandgap compounds, however, can be challenging to obtain.

Enhanced piezoelectricity by quenching results from the synergistic effects of increased resistivity and interfacial polarization caused by a mesophase.

A family of all sp²-bonded, superelastic carbon allotropes of topological semimetals are predicted, exhibiting unusual strain-robust nodal-lines.

Using liquid crystalline triblock copolymer complexes with hydrogen-bonded azobenzene moieties, photopatterned colorless birefringent films were prepared by irradiation with linearly polarized light and subsequent extracting azobenzene moieties.

High quantum efficiency LEDs with InGaN/GaN/AlGaN/GaN MQWs have been demonstrated. The proposed GaN interlayer barrier can not only increase the concentration and the spatial overlap of carriers, but also improve the quality of the MQWs.

This work demonstrates that single-molecule conductance measurements can identify reduced and oxidized glutathiones and thus have potential application in clinical diagnosis.

Theoretically, the realization of phase transformation in glass requires enough energy to overcome a certain barrier.

A hexagonal CdS film is used to increase the quality and improve the spectral response of Sb₂Se₃ solar cells deposited by the RTE method. A 7.35% efficiency of Sb₂Se₃ solar cells has been obtained based on the hexagonal CdS film.

A novel dual promotion strategy combining interface modification with ion doping is proposed to achieve highly efficient and stable carbon-based planar CsPbBr₃ perovskite solar cells.

We report the synthesis, crystal structure, and optical properties of a new layered perovskite oxychloride, Ba₃Y₂O₅Cl₂.

A mesoporous SiO₂ amorphous photonic crystal film was used to develop new thin-layer chromatography with high separation efficiency and simplified recognition.

Non-fullerene acceptors with a multi-asymmetric configuration are prepared in a one-pot reaction and show distinct properties.

The phase transformation temperature of Cu₅FeS₄ can be significantly reduced by replacing S by Se, leading to significantly enhanced average power factor and zT.

Through a facile ion exchange process, cyanine dye can be encapsulated into MOF nanochannels, largely extends the light-harvesting range to visible-light and NIR region, promotes photoelectric conversion performance 15 times higher than that of the pristine MOF.

We have developed a series of AIO-type copper halide hybrid semiconductors. The low-energy emission and high efficiency, coupled with good solution processability make these compounds promising candidate as robust and eco-friendly lighting phosphors.

Scalable fabrication of flexible PDMS/CNS pressure sensors with occluded microstructures were achieved by a simple, low-cost and eco-friendly manufacturing process.

A robust 3D Ca-CP demonstrates selective fluorescence-based sensing of Fe³⁺ and acetone as well as tunable proton conduction.

Order-disorder phase transition and relaxation process in lead free rigid niccolite-type formate crystal under pressure supported by the molecular dynamics simulations.

Aggregation-induced emission (AIE) has attracted increasing attention in recent years in the search for luminescent materials with biomedical and optoelectronic applications.

A series of amine substituted cyanines show spectral characteristics that are dependent on the structure of the substituted amine, with Stokes shifts that range from 24–180 nm. Computational analysis informs on the ground and excited state structures.

An excellent high-temperature switchable dielectric constant and high-efficiency photoluminescence have been realized in (3HQ)₄[RbEu(NO₃)₈] (3HQ = 3-quinuclidinone cation).

Hydrostatic pressure is an effective tool that can give rise to novel crystal structures and physical properties.

First-principles calculations are used to investigate the effect of pressure on lattice stability, electron–phonon properties, and superconductivity in SnSe₂ and SnS₂.

Conventional visible-light phototransistors based on the heterostructure of wide band gap zinc oxide (ZnO) and colloidal quantum-dots (CdSe/ZnS QDs) have been studied.

Two novel polymeric host materials, P(NmCP) and P(mCP), were synthesized, and high-performing sky-blue and green thermally activated delayed fluorescence organic light-emitting diodes were achieved.

The coupling effect at the two piezoelectric semiconductor interface can be designed to largely improve device photoresponse performances.

A new pair of Zn(II)–Yb(III) enantiomers with trinuclear structures were synthesized by using a chiral amine-phenol ligand, and they show unprecedented five-functionality by association of SMM, luminescent and proton conductive properties.

Hybrid Concrete-like perovskites (CPs) of CsPbBr₃@MABr were designed to obtain high-quality whispering-gallery-mode (WGM) and Fabry–Pérot (FP) cavity arrays for lasing.

A multi-component particle system was developed that combines the properties of white color, white light emission and strong magnetism on the macroscopic and microscopic scale.

Medium-solvent-treated oxide/perovskite quantum dot hybrid phototransistors exhibited enhanced photoresponsivity and ambient tolerance based on a surface reconstruction phenomenon on quantum dots, which suppressed penetration of water molecules.

Based on black-phosphorus-like nitrogen, we propose a puckered carbon nitride with an ultrahigh hole mobility and remarkable anisotropic behavior.

Thermal stability and temperature sensing of Er³⁺-doped M_0.5Bi_2.5Nb₂O₉ (M = Li, Na, K) upconversion materials can be effectively modulated using photochromic reactions.

Ferroelectricity is observed to occur at the interface between two non-ferroelectric materials, a polymer and silicon.

A high-efficiency and rapid removal method to eliminate impurities in PMMA films at near-room-temperature is illustrated.

R-/S-3 R-/S-3 R-/S-3The CP-OLEDs used achiral conjugated fluorescent polymer F8BT, blended with blue-emitting chiral dopants (R-/S-3), as the device emitting layer. High brightness CP-EL from fluorescent polymer F8BT could be induced by chiral enantiomers R-/S-3.