Themed collection Journal of Materials Chemistry C HOT Papers
Alkyl-π functional molecular liquids towards soft electronics
Free deformable, stretchable soft electronic devices are targeted by utilizing alkyl-π functional molecular liquids.
The carbon–carbon triple bond as a tool to design organic semiconductors for photovoltaic applications: an assessment of prospects and challenges
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 for low-cost and commercial applications
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.
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.
Halide perovskite based light-emitting diodes: a scaling up perspective
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 light-emitting properties and devices based on thin-film black phosphorus
Mid-infrared (MIR) radiation has a wide range of applications in military, environmental monitoring, and medical treatment.
Research progress of SERS on uranyl ions and uranyl compounds: a review
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.
Lanthanide-doped nanoparticles in photovoltaics – more than just upconversion
This review summarizes recent advances in developing high-efficiency upconversion nanoparticles and nanomaterials for photovoltaic application.
Metal–organic framework based systems for CO2 sensing
Monitoring CO2 levels in the atmosphere as well as in work place environments is strictly regulated.
Low-cost materials for organic solar cells
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.
Design of biodegradable and biocompatible conjugated polymers for bioelectronics
Blueprints for the chemical design of biodegradability and biocompatibility for organic semiconductors. Recent trends and future areas of interest are discussed.
Acenaphthylene as a building block for π-electron functional materials
The paper reviews synthetic design and optoelectronic properties of π-conjugated molecules and polymers based on the acenaphthylene building block.
Multifunctional layered hybrid perovskites
Layered hybrid perovskites incorporating organic moieties with enhanced functionalities within the perovskite scaffold enable the development of advanced multifunctional materials.
Fermi-level depinning of 2D transition metal dichalcogenide transistors
In this review, we summarize the recent progress on how to circumvent FLP between 2D TMD semiconductors and metals.
Solid-solution (alloying) strategies in crystalline molecular conductors
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.
Solution-processing of semiconducting organic small molecules: what we have learnt from 5,11-bis(triethylsilylethynyl)anthradithiophene
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.
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.
Fabrication of conducting polymer microelectrodes and microstructures for bioelectronics
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.
Dielectric materials for electrolyte gated transistor applications
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 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.
Two-dimensional intrinsic ferromagnets with high Curie temperatures: synthesis, physical properties and device applications
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.
White light emitting nanofibers constructed by electrospinning: advances and perspectives
In this overview, state-of-the art studies focused on WLENFs constructed and by electrospinning are systematically summarized.
Organic–inorganic hybrid thin film light-emitting devices: interfacial engineering and device physics
Organic–inorganic hybrid LEDs are reviewed from the perspectives of organic and inorganic functional materials, interfacial engineering, device structures and device physics.
Aliovalent-cation-substitution-induced structure transformation: a new path toward high-performance IR nonlinear optical materials
A quaternary IR-NLO thioantimonate, K2Ag3Sb3S7, designed using an aliovalent-cation-substitution-induced (ACSI) strategy based on the centrosymmetric K2Sb4S7 is reported.
Exploring the dark: detecting long-lived Nile Red 3ILCT states in Ru(II) polypyridyl photosensitisers
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.
High-performance as-cast non-fullerene polymer solar cells from benzo[1,2-b:4,5-b′]difuran polymer via a rational copolymer design
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.
A novel and facile route for the in situ formation of composites with dual coupling interactions for considerable millimeter wave absorption performance
An in situ prepared BaZrxFe12−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.
First-principles prediction of polar half-metallicity and out-of-plane piezoelectricity in two-dimensional quintuple layered cobalt selenide
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
2D perovskite narrowband photodetector arrays have been fabricated in this work, which can realize optical imaging with the ability of wavelength discrimination.
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.
A two-dimensional ferroelectric ferromagnetic half semiconductor in a VOF monolayer
A stable 2D multiferroic VOF monolayer is proposed, in which ferroelectric and ferromagnetic orders coexist with a negative Poisson's ratio.
Unraveling the crucial role of spacer ligands in tuning the contact properties of metal–2D perovskite interfaces
The spacer ligand acts as a buffer layer and plays a crucial role in modulating the contact properties of metal–2D perovskite interfaces.
Fabrication of a γ-In2Se3/Si heterostructure phototransistor for heart rate detection
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 based on a nanocomposite containing MoO2 under visible light irradiation
Plasmon-induced charge separation (PICS) was achieved with compound nanomaterials containing MoO2, which has a plasmon resonance wavelength close to gold.
The regulatory effect of triphenylphosphine oxide on perovskites for morphological and radiative improvement
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.
Stable down-conversion white light-emitting devices based on highly luminescent copper halides synthesized at room temperature
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.
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.
Bending TIPS-pentacene single crystals: from morphology to transistor performance
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.
Barium-based scintillating MOFs for X-ray dosage detection with intrinsic energy resolution via luminescent multidentate naphthalene disulfonate moieties
Non-toxic Ba-SMOFs assembled by luminescent multidentate naphthalene-sulfonate moieties exhibit merited intrinsic energy resolution for X-ray dosage detection.
MOF-derived hexagonal In2O3 microrods decorated with g-C3N4 ultrathin nanosheets for efficient photocatalytic hydrogen production
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.
Small molecule-doped organic crystals towards long-persistent luminescence in water and air
A doped-crystalline material based on two organic small molecules exhibits visible long-persistent luminescence performance in aqueous solution or in air.
Enhanced stability and colorimetric detection on Ag(I) ions of a methylthio-functionalized Zn(II) metal–organic framework
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.
Single crystal to single crystal transformation of spin-crossover coordination polymers from 3D frameworks to 2D layers
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.
Aligned packaging of in situ grown CsPbBr3 nanorods within polystyrene nanofibers for enhanced polarized luminescence properties
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.
CaSc2O4 hosted upconversion and downshifting luminescence
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 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.
Doped crystalline thin-film deep-blue organic light-emitting diodes
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.
Photoinduced magnetic phase transition and remarkable enhancement of magnetization for a photochromic single-molecule magnet
A photochromic single-molecule magnet with large magnetization change (+20.9%) at room temperature and paramagnetic to ferromagnetic transition was successfully achieved.
Ba3[Al(PO4)3]: rational design of a promising deep-UV transparent SHG crystal with balanced overall performance originating from the condensation of quartz-type [Al(PO4)4]9− units
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.
Construction of polymer materials with specific responses to violet and green lights and their potential applications in an artificial visual memory system
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.
Eu2+ emission from thermally coupled levels – new frontiers for ultrasensitive luminescence thermometry
A new strategy for noninvasive temperature probing, applying the temperature-induced configuration crossover between the thermally-coupled 6P7/2 and 5d1 levels of Eu2+ is presented.
Dual-emission ratiometric fluorescent probe-based lanthanide-functionalized hydrogen-bonded organic framework for the visual detection of methylamine
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 second-order NLO and TADF properties of a donor–acceptor dihydropyrene–cyclophanediene system: the impact of molecular architecture and polarizable environment
The DHP derivative has more excellent NLO properties, while the CPD derivative possesses TADF properties, showing an interesting “seesaw” phenomenon.
Regulating the photoluminescence of carbon dots via a green fluorine-doping-derived surface-state-controlling strategy
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.
Unusually high Seebeck coefficient arising from temperature-dependent carrier concentration in PbSe–AgSbSe2 alloys
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.
Cage-incorporation of secondary amine in Ruddlesden–Popper 2D hybrid perovskite with strong photoconductivity and polarization response
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.
Novel core-substituted naphthalene diimide-based conjugated polymers for electrochromic applications
The strategic implementation of using a core-substituted naphthalene diimide derivative to electropolymerize an ionized polymer for a better electrochromic performance is proposed.
The intrinsic thermal transport properties of the biphenylene network and the influence of hydrogenation: a first-principles study
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.
On the nature of solvothermally synthesized carbon nanodots
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.
Intrinsic ferromagnetism in 2D h-CrC semiconductors with strong magnetic anisotropy and high Curie temperatures
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.
Zn(NH3)CO3: a “three-in-one” UV nonlinear optical crystal built by a polar molecule bonding strategy
Centimeter-sized Zn(NH3)CO3 is a “three-in-one” UV nonlinear optical crystal, featuring a Chinese-knot-like framework and great optical performance.
Molecular engineering towards tunable morphology of metal–organic complex microcrystals for efficient and multicolor electrochemiluminescence
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
Boosting photocatalytic performance for selective oxidation of biomass-derived pentoses and hexoses to lactic acid using hierarchically porous Cu/Cu2O/CuO@CA.
Understanding the dopant induced effects on SFX-MeOTAD for perovskite solar cells: a spectroscopic and computational investigation
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+
An ultra-high quantum yield Tb-MOF with phenolic hydroxyl as the recognition group for a highly selective and sensitive detection of Fe3+.
Improving molecular alignment and charge percolation in semiconducting polymer films with highly localized electronic states through tailored thermal annealing
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.
Tuning the dynamic magnetic behaviour and proton conductivity via water-induced reversible single-crystal to single-crystal structural transformation
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.
From structural phase transition to highly sensitive lifetime based luminescent thermometer: multifaceted modification of thermometric performance in Y0.9−xNdxYb0.1PO4 nanocrystals
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 tuning oxygen vacancies in ultrathin 2D Ni–V mixed metal oxides for exceptional oxidase mimic and antibacterial applications
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.
About this collection
This on-going web collection features all the articles published in Journal of Materials Chemistry C in 2021 marked as HOT (selected by our Editors as especially significant based on reviewers’ recommendations and their own appraisal). Congratulations to all the authors whose articles are featured!