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.
The role of excitons in 3D and 2D lead halide perovskites
Excitons in lead halide perovskites often go unnoticed as minority species, yet they account for almost all of light emission.
Methylamine-induced defect-healing and cationic substitution: a new method for low-defect perovskite thin films and solar cells
Methylamine-induced defect-healing and cationic substitution was reviewed for low defect perovskite films with better crystal quality and high stability.
Bio-inspired sensing and actuating materials
Biological systems contain various amazing examples that can display adaptive and active behaviors in response to external stimuli.
Structural origins of the electronic properties of materials via time-resolved infrared spectroscopy
Time-resolved mid-infrared spectroscopy provides new opportunities to probe the structural origins of electronic and transport states in optoelectronic materials.
Recent developments in stimuli-responsive luminescent films
Luminescent films have attracted a great amount of attention due to their unique properties and various potential applications in optical displays, sensors and switches.
Physical vapour deposition of vanadium dioxide for thermochromic smart window applications
In this paper, various PVD techniques, such as pulsed laser deposition (PLD), evaporation decomposition (ED) and sputtering, are examined with respect to their conditions for VO2 fabrication, film quality and the strategies for film improvements.
Recent progress on highly sensitive perovskite photodetectors
The recent progress and developments on perovskite photodetectors are summarized from the perspective of device physics and materials science.
Luminescent perovskite quantum dots: synthesis, microstructures, optical properties and applications
The synthesis, microstructures, optical properties and promising applications of luminescent perovskite quantum dots in optoelectronic fields are systematically reviewed.
Recent progress in printable organic field effect transistors
Downscaling of printable OFETs and approaches for steep subthreshold swing have been summarized and discussed.
Self-assembly of coordination polymers on plasmonic surfaces for computer vision decodable, unclonable and colorful security labels
An unusual plank-shaped nematogen with a graphene nanoribbon core
Laterally decorated ribbon-shaped graphene segments made of twelve benzene units self-assemble into a nematic anisotropic glass at room temperature with high birefringence and polarized fluorescence.
Triphenylpyrazine: A new AIE building block of deep-blue emitters via methyl substitute
Multi-mode structural-color anti-counterfeiting labels based on physically unclonable amorphous photonic structures with convenient artificial intelligence authentication
The first physically unclonable anti-counterfeiting label based on structural colors was enabled by interfacing amorphous photonic structures with artificial intelligence.
Enhanced piezoresistive performance of 3C-SiC nanowires by coupling with ultraviolet illumination
We reported an effective strategy for enhancing the piezoresistive behaviors of SiC nanowires by coupling with UV illumination.
Barium acetate as an additive for high performance perovskite solar cells
Defects within the halide perovskite films limit the efficiency and stability of perovskite solar cells (PSCs).
Enhancing the intermolecular singlet fission efficiency by controlling the self-assembly of amphipathic tetracene derivatives in aqueous solution
Introduction of the carboxyl group onto tetracene can change the singlet fission mechanism and increase the singlet fission yield in its nanoparticles.
Stretchable multi-luminescent fibers with AIEgens
Stretchable multicolor light-emitting fibers were realized by incorporating an ultralow content of AIEgens in polydimethylsiloxane fibers through a continuous dry–wet spinning process for applications in smart textiles.
Solution-processable zinc oxide nanorods and a reduced graphene oxide hybrid nanostructure for highly flexible and stable memristor
A memristor composed of a 1D–2D nanostructure exhibits superior flexibility and stability.
Tunable 3D light trapping architectures based on self-assembled SnSe2 nanoplate arrays for ultrasensitive SERS detection
We demonstrate tunable 3D light trapping (up to ∼96%) architectures based on the SnSe2 nanoplate arrays (NPAs) via self-assembled growth and high performance (EF: 6.33 × 106, LOD: 1 × 10−12 M) SERS substrates based on SnSe2 NPAs.
A dithieno[3,2-b:2′,3′-d]pyrrole-cored four-arm hole transporting material for over 19% efficiency dopant-free perovskite solar cells
A dithieno[3,2-b:2′,3′-d]pyrrole-cored four-arm hole transporting material has been designed to realize over 19% efficiency dopant-free perovskite solar cells.
Binary cooperative flexible magnetoelectric materials working as self-powered tactile sensors
This study will demonstrate the fabrication of binary cooperative flexible magnetoelectric materials and their application in self-powered tactile sensors.
A high temperature optic-electric duple switching organic ionic compound: 1,4,7-triazoniacyclononane tetrafluoroborate dichloride
[9-tacn-3]3+[BF4]−2[Cl]− (9-tacn-3 = 1,4,7-triazoniacyclononane) is a second-order nonlinear and dielectric switch with a phase transition temperature as high as 400 K.
Enhancing the thermoelectric performance of Cu1.8S by Sb/Sn co-doping and incorporating multiscale defects to scatter heat-carrying phonons
(Sb, Sn) co-doping optimizes the carrier concentration of Cu1.8S and constructs multiscale defects, leading to ZTmax of 1.2 at 773 K.
A novel information storage and visual expression device based on mechanoluminescence
A novel information storage and visual expression device records the pre-stressed region and expresses the information via light emission.
Highly luminescent CsPbBr3 nanorods synthesized by a ligand-regulated reaction at the water–oil interface
We have synthesized highly luminescent CsPbBr3 nanorods through an oriented-attachment mechanism assisted by the ligand-regulation at the water–oil interface.
Transient fiber-shaped flexible electronics comprising dissolvable polymer composites toward multicolor lighting
Dissolvable and flexible light emitting fibers toward multicolor lighting are fabricated via an all-solution processing method.
High-performance CdScInO thin-film transistors and their stability improvement under negative bias (illumination) temperature stress
Thermally activated delayed fluorescence enantiomers for solution-processed circularly polarized electroluminescence
Enantiomers with circularly polarized (CP) thermally activated delayed fluorescence were designed in a chiral-D–A architecture for solution-processed high-efficiency CP-OLEDs.
Self-assembly of luminescent 42-metal lanthanide nanowheels with sensing properties towards metal ions and nitro explosives
Two-dimensional CdX (X=Se, Te) nanosheets controlled synthesis and their photoluminescence properties
Low surface energy interface-derived low-temperature recrystallization behavior of organic thin films for boosting carrier mobility
A facile strategy to recrystallize an organic semiconductor thin film to attain the desirable smooth morphology for boosting carrier mobility.
Synthesis of large-area 2D WS2 films and fabrication of a heterostructure for self-powered ultraviolet photodetection and imaging applications
High-performance self-powered ultraviolet (UV) photodetector based on a WS2/GaN heterojunction was demonstrated, which exhibits excellent UV photoresponse properties. Significantly, this photodetector has exhibited excellent UV imaging capability.
Near-infrared polymer light-emitting diodes based on an inverted device structure
Micro-cavity effects were applied to acquire near-infrared emission using normal red-emitting materials through an inverted device structure.
Infrared micro-detectors with high sensitivity and high response speed using VO2-coated helical carbon nanocoils
Micro-bolometers based on VO2 and carbon nanocoils are developed in this work. The photoresponse of the micro-bolometer is greatly enhanced by the helical structure of the device.
Fine-grain induced outstanding energy storage performance in novel Bi0.5K0.5TiO3–Ba(Mg1/3Nb2/3)O3 ceramics via a hot-pressing strategy
Fine-grain induced ultrahigh energy storage density and fast discharge speed in novel Bi0.5K0.5TiO3–Ba(Mg1/3Nb2/3)O3 ceramics via a hot-pressing strategy.
Epitaxial growth of large-scale In2S3 nanoflakes and the construction of a high performance In2S3/Si photodetector
MoS2-like layered 2D materials have attracted attention worldwide due to their intriguing material properties.
Polarized resonance synchronous spectroscopy as a powerful tool for studying the kinetics and optical properties of aggregation-induced emission
Light scattering and absorption both contribute to the UV-vis extinction quantified with a UV-vis spectrophotometer, but they differ drastically in their causes and effects.
A wearable helical organic–inorganic photodetector with thermoelectric generators as the power source
A self-powering feature is particularly appealing for wearable electronic devices, in particular, photodetectors (PDs), as promising candidates for health and environment monitoring, are urgently desired to be made wearable and powerless.
A strategy for developing thermal-quenching-resistant emission and super-long persistent luminescence in BaGa2O4:Bi3+
A novel BaGa2O4:0.02Bi3+ phosphor with excellent thermal-quenching-resistant emission and super-long persistent luminescence has been synthesized and systematically investigated.
Highly efficient deep-blue light-emitting copolymers containing phenoxazine: enhanced device efficiency and lifetime by blending a hole transport molecule
Boosting the intrinsic carrier mobility of two-dimensional pnictogen nanosheets by 1000 times via hydrogenation
Hydrogenation boosts carrier mobilities in 2D pnictogens by more than 1000 times.
Anion-regulated transient and persistent phosphorescence and size-dependent ultralong afterglow of organic ionic crystals
Regulation and the transient and persistent room-temperature phosphorescence of organic ionic crystals by the alteration of anions, and unique size-dependent ultralong afterglow of specific organic crystals under ambient conditions were reported.
Fine tuning of pyridinium-functionalized dibenzo[a,c]phenazine near-infrared AIE fluorescent biosensors for the detection of lipopolysaccharide, bacterial imaging and photodynamic antibacterial therapy
A series of NIR fluorescent probes of dibenzophenazine pyridine salt with different alkyl chain were developed for the detection of LPS. BD2C with ethyl chain exhibited a significant improvement of the singlet oxygen yield and antibacterial property.
Insight from the old: mechanochromism and mechanoluminescence of two amine-containing tetraphenylethylene isomers
The mechanochromism (MC) and mechanoluminescence (ML) properties of an “old” tetraphenylethylene derivative p-NH2 and its isomer m-NH2 were investigated.
Charge transport effect and photovoltaic conversion of two-dimensional CdSeS quantum dot monolayers in inverted polymer solar cells
Herein, we demonstrate that two-dimensional (2D) CdSeS quantum dot monolayers (QDM) can strongly influence efficient charge transport and charge separation, improving the performance of inverted polymer solar cells (iPSCs).
Improvement in efficiency and stability of quantum dot/polymer nanocomposite film for light-emitting diodes using refractive index-controlled quantum dot–silica hybrid particles
Controlling refractive index of hybrid particles suppressed light scattering and enhanced efficiency and stability of nanocomposite film.
One-dimensional π–π stacking induces highly efficient pure organic room-temperature phosphorescence and ternary-emission single-molecule white light
High-efficiency RTP of TX-Cl crystal was induced by one-dimensional π–π stacking, which significantly enhances both intersystem crossing (S1 → Tn) and radiative rate (T1 → S0). SMWLE was harvested by precisely controlling aggregating degree.
Second-order nonlinear optical properties of fullerene-fused dihydrocarboline derivates: a theoretical study on switch effect
Highly ordered columnar superlattice nanostructures with improved charge carrier mobility by thermotropic self-assembly of triphenylene-based discotics
A series of triphenylene esters with two ester groups at different substituent positions was synthesized and investigated. 3,6-substituted molecule formed a helical hexagonal columnar superstructure, leading to improved charge carrier mobility.
Controllable Synthesis of Barnyardgrass-like CuO/Cu2O Heterostructure Nanowires for Highly Sensitive Non-enzymatic Glucose Sensor
Multifunctional applications of triazine/carbazole hybrid thermally activated delayed fluorescence emitters in organic light emitting diodes
A novel meta-linked carbazole/triazine thermally activated delayed fluorescence (TADF) material exhibits multiple functions in OLEDs as a doped and non-doped blue emitter, as a host for other dopants, and as a host emitter in white OLEDs.
A search for extra-high brightness laser-driven color converters by investigating thermally-induced luminance saturation
Clarification of thermal saturation helps to guide the design of high-brightness yellow and green components for laser lighting and displays.
Graphene quantum dot/Co(OH)2 electrode on nanoporous Au–Ag alloy for superior hybrid micro-supercapacitors
Graphene quantum dot (GQD)/Co(OH)2 composite based wire-shaped, quasi-solid-state hybrid supercapacitor device exhibits enhanced specific capacitance, a high capacitance retention rate and superior device stability.
Sulfur-fused perylene diimide electron transport layers allow >400 h operational lifetime of methylammonium lead iodide photovoltaics
The lifetime of hybrid organic perovskite solar cells under 1 sun illumination can be extended using electron transport layers made with fused perylene diimide acceptors with disulfide moieties.
Multi-colored hollow carbon-containing titania nanoshells for anti-counterfeiting applications
Hollow nanoshells composed of titania and carbon have been fabricated, displaying striking colors with considerably high contrast by Mie resonance. They respond rapidly and reversibly to the changes in the refractive index of the surrounding medium.
Thiophene copolymer for 1 V high open-circuit voltage semitransparent photovoltaic devices
A thiophene backbone polymer can achieve above 6% PCE in semitransparent PSC devices.
Impact of new skeletal isomerization in polymer semiconductors
A new skeletal isomerization strategy for achieving high-performance polymer semiconductors based on asymmetric aromatic group-flanked diketopyrrolopyrrole units for application in organic field-effect transistors was highlighted.
High-efficiency pure blue thermally activated delayed fluorescence emitters with a preferentially horizontal emitting dipole orientation via a spiro-linked double D–A molecular architecture
A spiro-linked double D–A molecular architecture has been introduced to construct blue thermally activated delayed fluorescence (TADF) emitters with a preferentially horizontal emitting dipole orientation.
Direct observation of reverse intersystem crossing from fully confined triplet exciplexes using magneto-electroluminescence
Magneto-electroluminescence was used to observe reverse intersystem crossing in exciplex-based organic light-emitting diodes directly.
Enhanced protonic conductivity and IFET behavior in individual proton-doped electrospun chitosan fibers
Enhanced proton transfer of an electrospun, single chitosan fiber doped by TFA in the presence of hydrogen in 75% relative humidity.
Morphology of small molecular donor/polymer acceptor blends in organic solar cells: effect of the π–π stacking capability of the small molecular donors
A small molecular donor with strong π–π stacking overaggregates into discontinuous large domains, while a small molecular donor with weak π–π stacking remains amorphous in the as-cast film and crystallizes into nano-sized domains during thermal annealing.
High-efficiency ternary nonfullerene organic solar cells fabricated with a near infrared acceptor enhancing exciton utilization and extending absorption
Incorporating an infrared nonfullerene acceptor O6T-4F enhances the exciton utilization and extends the absorption, leading to an increased PCE of organic solar cells.
Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramic with large energy density and high efficiency under a moderate electric field
Large energy storage density and high efficiency in Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramic induced by AgNbO3 doping.
Oxygen adsorption and its influence on the thermoelectric performance of polycrystalline SnSe
Oxygen is adsorbed when SnSe is exposed to air and it acts as a hole-like acceptor. The thermoelectric performance of n-type polycrystalline SnSe can be promoted through optimizing carrier concentration via preventing oxygen adsorption.
Strain and electric field modulated electronic structure of two-dimensional SiP(SiAs)/GeS van der Waals heterostructures
Type-II alignment appears in the SiP(SiAs)/GeS heterostructures, which can be tuned by strain and an electric field.
Solution processible triphenylphosphine-oxide-cored dendritic hosts featuring thermally activated delayed fluorescence for power-efficient blue electrophosphorescent devices
A series of phosphine oxide based dendritic hosts have been developed. Compare with conventional dendritic host H2, the new hosts not only maintain high T1 but also have a small ΔEST and bring higher device performance.
A ternary ZnO/ZnS/MoS2 composite as a reusable SERS substrate derived from the polyoxomolybdate/ZIF-8 host–guest framework
A ternary nanocomposite of ZnMoNCs containing ZnO, ZnS and MoS2 has been synthesized by a facile strategy derived from polyoxometalate and ZIF-8, which shows high SERS activity by increased adsorption sites and synergistically improved charge transfer.
Ultrastrong and conductive MXene/cellulose nanofiber films enhanced by hierarchical nano-architecture and interfacial interaction for flexible electromagnetic interference shielding
Ti3C2Tx/TOCNF composite papers present excellent mechanical strength and EMI shielding effectiveness due to their hierarchically aligned structure and strong intermolecular interactions.
Great advance in high Tc for hybrid photoelectric-switch bulk/film coupled with dielectric and blue-white light
The hybrid compound [ASD]2[ZnBr4] demonstrates excellent multi-channel, high Tc of 380 K, super-flexibility and broad-band blue-white light emitting bulk/film.
About this collection
This on-going web collection features all the articles published in Journal of Materials Chemistry C in 2019 marked as HOT, as recommended by referees. Congratulations to all the authors whose articles are featured!