Themed collection Journal of Materials Chemistry C Lunar New Year collection 2021
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Circularly polarized luminescence from AIEgens
This work systematically summarizes recent advances in circularly polarized luminescence (CPL) based on aggregation-induced emission luminogens (AIEgens).
J. Mater. Chem. C, 2020,8, 3284-3301
https://doi.org/10.1039/C9TC07022B
Colloidal quantum dot hybrids: an emerging class of materials for ambient lighting
Electroluminescence light-emitting diodes enabled by hybridising colloidal quantum dots is an emerging technology for large-area and foldable ambient lighting. We summerise state-of-the-art scientific challenges and prospect their future development.
J. Mater. Chem. C, 2020,8, 10676-10695
https://doi.org/10.1039/D0TC01349H
Electrides: a review
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.
J. Mater. Chem. C, 2020,8, 10551-10567
https://doi.org/10.1039/D0TC01165G
Digital manufacturing of functional materials for wearable electronics
A review of the recent developments of digital manufacturing methods of functional materials for wearable electronics applications.
J. Mater. Chem. C, 2020,8, 10587-10603
https://doi.org/10.1039/D0TC01112F
Metal–organic frameworks: opportunities and challenges for surface-enhanced Raman scattering – a review
MOF-based substrates and their SERS applications.
J. Mater. Chem. C, 2020,8, 2952-2963
https://doi.org/10.1039/D0TC00040J
Recent advances in high performance blue organic light-emitting diodes based on fluorescence emitters
This review summarizes recent advances in blue OLEDs based on fluorescence emitters, especially focusing on the different mechanisms involving the emitters and devices.
J. Mater. Chem. C, 2020,8, 2614-2642
https://doi.org/10.1039/C9TC06441A
Emerging black phosphorus analogue nanomaterials for high-performance device applications
Black phosphorus analogues with excellent performance and high chemical stability hold great promise for practical applications.
J. Mater. Chem. C, 2020,8, 1172-1197
https://doi.org/10.1039/C9TC05558D
Copper nanowires in recent electronic applications: progress and perspectives
This article outlines the latest advances of copper nanowires in electronic applications, including flexible transparent electrodes for optical devices, current collectors for lithium-ion batteries, and stretchable electrodes for wearable devices.
J. Mater. Chem. C, 2020,8, 849-872
https://doi.org/10.1039/C9TC04744A
Recent progress in the development of molecular-scale electronics based on photoswitchable molecules
Recent advances in photoswitchable molecular devices based on single molecules or self-assembled monolayers of photochromic molecules are summarized and discussed.
J. Mater. Chem. C, 2020,8, 821-848
https://doi.org/10.1039/C9TC06054E
Recent developments in emerging two-dimensional materials and their applications
The technological evolution has been progressing for centuries and will possibly increase at a higher rate in the 21st century.
J. Mater. Chem. C, 2020,8, 387-440
https://doi.org/10.1039/C9TC04187G
High-efficiency thermally activated delayed fluorescence emitters via a high horizontal dipole ratio and controlled dual emission
OLED devices based on linear rod-like TADF emitters exhibited high device efficiencies of 29.9% and 25.8% by means of high horizontal emitting dipole orientation and controlled dual emission.
J. Mater. Chem. C, 2020,8, 8012-8017
https://doi.org/10.1039/D0TC01644F
Bismuth halide perovskite derivatives for direct X-ray detection
A one-dimensional bismuth-based perovskite derivative (DMEDA)BiI5 was investigated for X-ray photoelectric detection.
J. Mater. Chem. C, 2020,8, 1239-1243
https://doi.org/10.1039/C9TC06313G
Improving the performance of near infrared binary polymer solar cells by adding a second non-fullerene intermediate band-gap acceptor
A series of ternary OSCs were fabricated with PBDB-T-2Cl:IXIC-4Cl as a host system and IT-4F as the third component. The optimal ternary device achieved an excellent PCE of 15.0%.
J. Mater. Chem. C, 2020,8, 909-915
https://doi.org/10.1039/C9TC06362E
Hierarchical CoxAly layered double hydroxide@carbon composites derived from metal–organic frameworks with efficient broadband electromagnetic wave absorption
Porous carbon-based composites have attracted extensive attention because of their good performance.
J. Mater. Chem. C, 2020,8, 16418-16426
https://doi.org/10.1039/D0TC00622J
Methoxylation of quinoidal bithiophene as a single regioisomer building block for narrow-bandgap conjugated polymers and high-performance organic field-effect transistors
Methoxyl group was introduced to obtain isomer-free methoxylation quinoidal bithiophene building block. Four polymers displayed narrow bandgap (<1.20 eV) and hole mobility of up to 2.70 cm2 V−1 s−1.
J. Mater. Chem. C, 2020,8, 15168-15174
https://doi.org/10.1039/D0TC02199G
Effects of alkoxylation position on fused-ring electron acceptors
Four fused-ring electron acceptors composed of the same core and end groups without or with hexyloxyl groups on the core and/or phenyl side chains are compared to systematically study the effects of alkoxylation position on the molecular packing, optical, electronic, and photovoltaic properties of the nonfullerene acceptors.
J. Mater. Chem. C, 2020,8, 15128-15134
https://doi.org/10.1039/D0TC02158J
“Heavy-atom effects” in the parent [1]benzochalcogenopheno[3,2-b][1]benzochalcogenophene system
Effects of the chalcogen atoms in [1]benzochalcogenopheno[3,2-b][1]benzochalcogenophenes (BXBXs), the key π-conjugated core structures in the development of superior organic semiconductors, are investigated.
J. Mater. Chem. C, 2020,8, 15119-15127
https://doi.org/10.1039/D0TC01408G
Effect of ortho-biphenyl substitution on the excited state dynamics of a multi-carbazole TADF molecule
Multi-carbazole TADF molecules with an ortho-biphenyl local triplet scaffold exhibiting an EQE of 23.7% and a LT50 of 750 hours.
J. Mater. Chem. C, 2020,8, 12075-12084
https://doi.org/10.1039/D0TC02627A
Gradient porous PNIPAM-based hydrogel actuators with rapid response and flexibly controllable deformation
Gradient PNIPAM-based intelligent hydrogels with bidirectional bending properties can realize flexibly controllable deformation and activity as soft actuators.
J. Mater. Chem. C, 2020,8, 12092-12099
https://doi.org/10.1039/D0TC00139B
Achieving multiple emission states and controllable response behaviour in thermochromic luminescent materials for security applications
In this work, thermochromic luminescent materials with three emission states and controllable thermochromic transition temperatures were developed for multilevel anti-counterfeiting and high-security level information storage.
J. Mater. Chem. C, 2020,8, 10798-10804
https://doi.org/10.1039/C9TC06627F
A highly fluorescent covalent organic framework as a hydrogen chloride sensor: roles of Schiff base bonding and π-stacking
In this paper we report the extremely crystalline structures, high thermal stabilities, and strong fluorescence emissions of covalent organic frameworks based on linked carbazole units.
J. Mater. Chem. C, 2020,8, 9520-9528
https://doi.org/10.1039/D0TC01872D
Near-infrared absorbing pyrrolopyrrole aza-BODIPY-based donor–acceptor polymers with reasonable photoresponse
Designing near-infrared (NIR) absorbing donor–acceptor (D–A) polymers with photoresponse beyond 900 nm has remained a challenge in the area of organic photovoltaics (OPV) owing to the limited kinds of strong electron acceptors.
J. Mater. Chem. C, 2020,8, 8770-8776
https://doi.org/10.1039/D0TC01487G
A multifunctional wearable E-textile via integrated nanowire-coated fabrics
We demonstrate a novel multifunctional E-textile which functions as a pressure sensor, Joule heater, thermal insulator, and PM2.5 filter.
J. Mater. Chem. C, 2020,8, 8399-8409
https://doi.org/10.1039/D0TC00372G
Aggregation-state engineering and emission switching in D–A–D′ AIEgens featuring dual emission, MCL and white electroluminescence
D–A–D′ AIEgens exhibit dual emission involving a blue TADF (monomer) and an orange TADF/RTP (dimer), which are switchable via aggregation-state engineering, and demonstrate high contrast MCL as well as white EL emission with high CRI.
J. Mater. Chem. C, 2020,8, 8061-8068
https://doi.org/10.1039/D0TC01733G
Simultaneous realization of high-efficiency, low-drive voltage, and long lifetime TADF OLEDs by multifunctional hole-transporters
A smart high-triplet energy hole-transporter exhibits significant stability in the anion state realizing record-breaking highly efficient and long-living thermally activated delayed fluorescent (TADF) organic light-emitting devices (OLEDs).
J. Mater. Chem. C, 2020,8, 7200-7210
https://doi.org/10.1039/D0TC00330A
Morphology and properties of PEDOT:PSS/soft polymer blends through hydrogen bonding interaction and their pressure sensor application
The effects of the composition on the stretchability and conductivity of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) polymer blends with soft polymers poly(acrylic acid) (PAA) and their application in pressure sensors.
J. Mater. Chem. C, 2020,8, 6013-6024
https://doi.org/10.1039/D0TC00559B
Prediction of high carrier mobility for a novel two-dimensional semiconductor of BC6N: first principles calculations
First principles calculations are performed to predict phonon-limited carrier mobility for a novel graphene-like semiconductor with BC6N stoichiometry.
J. Mater. Chem. C, 2020,8, 5882-5893
https://doi.org/10.1039/D0TC00549E
Relaxor/antiferroelectric composites: a solution to achieve high energy storage performance in lead-free dielectric ceramics
Compared with the relaxor with pinched P–E loops, the relaxor/antiferroelectric (RE/AFE) composites have narrower and oblique curves, proving the design of RE/AFE is an effective method to improve the energy storage properties of dielectric ceramics.
J. Mater. Chem. C, 2020,8, 5681-5691
https://doi.org/10.1039/D0TC00589D
Non-enzymatic electrochemical glucose sensors based on polyaniline/reduced-graphene-oxide nanocomposites functionalized with silver nanoparticles
We demonstrate silver (Ag) nanoparticle decorated polyaniline (PANI) and reduced graphene oxide (rGO) as Ag–PANI/rGO nanocomposites to realize non-enzymatic glucose sensors.
J. Mater. Chem. C, 2020,8, 5112-5123
https://doi.org/10.1039/C9TC06836H
Rapid synthesis and mechanochemical reactions of cesium copper halides for convenient chromaticity tuning and efficient white light emission
Emitting wavelength of cesium copper halides can be effectively tuned by regulating the process of mechanochemical reaction firstly.
J. Mater. Chem. C, 2020,8, 4895-4901
https://doi.org/10.1039/D0TC00015A
Full-visible-spectrum lighting enabled by an excellent cyan-emitting garnet phosphor
Cyan-emitting Ca2YHf2Al3O12:xCe3+ garnet phosphors with a high photoluminescence quantum efficiency of up to 89.5% were developed for fabricating high color rendering warm-white LEDs.
J. Mater. Chem. C, 2020,8, 4934-4943
https://doi.org/10.1039/D0TC00006J
Temperature stable Li2Ti0.75(Mg1/3Nb2/3)0.25O3-based microwave dielectric ceramics with low sintering temperature and ultra-low dielectric loss for dielectric resonator antenna applications
The LTMN0.25 + 1 wt% 0.6CuO–0.4B2O3 ceramic with low sintering temperature, small density and excellent performance have wide application prospects in 5G devices.
J. Mater. Chem. C, 2020,8, 4690-4700
https://doi.org/10.1039/D0TC00326C
Methoxy substituents activated carbazole-based boron dimesityl TADF emitters
Five N-borylated TADF emitters bearing both boron dimesityl acceptor and methoxy substituted carbazole are presented with electroluminescence ranging from 444 to 468 nm, and with the best maximum external quantum efficiency of 13.3%.
J. Mater. Chem. C, 2020,8, 4780-4788
https://doi.org/10.1039/C9TC07020F
Highly efficient near-UV-excitable Ca2YHf2Al3O12:Ce3+,Tb3+ green-emitting garnet phosphors with potential application in high color rendering warm-white LEDs
Novel near-UV-excitable Ca2YHf2Al3O12:Ce3+,Tb3+ green phosphors with a highest internal quantum efficiency of 86.6% and external quantum efficiency of 63.1% were reported for high-CRI warm-white LEDs.
J. Mater. Chem. C, 2020,8, 4408-4420
https://doi.org/10.1039/D0TC00130A
Enhancing thermal conductivity via conductive network conversion from high to low thermal dissipation in polydimethylsiloxane composites
Thermal conductivities of polymer composites are enhanced by several orders of magnitude via conductive network conversion from high to low thermal dissipation.
J. Mater. Chem. C, 2020,8, 3463-3475
https://doi.org/10.1039/C9TC06968B
The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods
ZnO/Ag/Ag2O accelerates phenol degradation through different intermediate processes under white light illumination.
J. Mater. Chem. C, 2020,8, 3000-3009
https://doi.org/10.1039/C9TC05010H
Non-toxic green food additive enables efficient polymer solar cells through adjusting the phase composition distribution and boosting charge transport
Solvent additives play an important role in optimizing the morphology of the photoactive layer and improving the photovoltaic performance of polymer solar cells (PSCs).
J. Mater. Chem. C, 2020,8, 2483-2490
https://doi.org/10.1039/C9TC06571G
DDAB-assisted synthesis of iodine-rich CsPbI3 perovskite nanocrystals with improved stability in multiple environments
Optimized method for synthesis of CsPbI3 NCs using dodecyldimethylammonium bromide as capping molecules can achieve enhanced stability.
J. Mater. Chem. C, 2020,8, 2381-2387
https://doi.org/10.1039/C9TC06566K
As2S3, As2Se3 and As2Te3 nanosheets: superstretchable semiconductors with anisotropic carrier mobilities and optical properties
Mechanical response, dynamical/thermal stability, electronic/optical properties and photocatalytic features of monoclinic As2X3 (X = S, Se and Te) nanosheets are explored via DFT simulations. As2Te3 lattice predicted by this study is found to exhibit superior superstretchability, outperforming other known 2D materials.
J. Mater. Chem. C, 2020,8, 2400-2410
https://doi.org/10.1039/C9TC05904K
Highly efficient blue thermally activated delayed fluorescence organic light emitting diodes based on tercarbazole donor and boron acceptor dyads
Two new blue TADF emitters, 3CzTB and M3CzB, for application in highly efficient organic light-emitting diodes are reported.
J. Mater. Chem. C, 2020,8, 2272-2279
https://doi.org/10.1039/C9TC05950D
(Na0.5Bi0.5)0.7Sr0.3TiO3 modified by Bi(Mg2/3Nb1/3)O3 ceramics with high energy-storage properties and an ultrafast discharge rate
Novel (Na0.5Bi0.5)0.7Sr0.3TiO3-based lead-free ceramics with vastly improved energy-storage properties for high power system applications.
J. Mater. Chem. C, 2020,8, 2258-2264
https://doi.org/10.1039/C9TC06218A
Pyrimidine-based bipolar host materials for high efficiency solution processed green thermally activated delayed fluorescence OLEDs
In this study, three bipolar host materials (i.e.Py2Cz, Py2BFCz, and Py2ICz) for solution-processable green-emitting TADF-OLEDs were synthesized by coupling 2,4-diphenylpyrimidine to mCP and modifying the carbazole-donating units in the mCP structure.
J. Mater. Chem. C, 2020,8, 2196-2204
https://doi.org/10.1039/C9TC05727G
Rational design of 2D hierarchically laminated Fe3O4@nanoporous carbon@rGO nanocomposites with strong magnetic coupling for excellent electromagnetic absorption applications
2D hierarchically laminated Fe3O4@NPC@rGO nanocomposites exhibited excellent electromagnetic absorption owing to their micro-scale 3D magnetic coupling network, hierarchical dielectric carbon network and superior impedance matching.
J. Mater. Chem. C, 2020,8, 2123-2134
https://doi.org/10.1039/C9TC06526A
Interface modification of sputtered NiOx as the hole-transporting layer for efficient inverted planar perovskite solar cells
An appropriately combined triple interface modification, i.e., post-annealing, O2-plasma, and KCl treatments, is employed to ameliorate the optoelectronic properties of sputtered NiOx films and achieve better device performance.
J. Mater. Chem. C, 2020,8, 1972-1980
https://doi.org/10.1039/C9TC05759E
A wearable, self-adhesive, long-lastingly moist and healable epidermal sensor assembled from conductive MXene nanocomposites
MXene nanocomposites exhibit self-healing capability, self-adhesive performance and long-lasting moisture, and can be assembled as epidermal sensors to wirelessly detect human motion.
J. Mater. Chem. C, 2020,8, 1788-1795
https://doi.org/10.1039/C9TC05575D
VSe2 nanosheets for ultrafast fiber lasers
In this work, we investigate VSe2 for generating femtosecond and large energy mode-locked laser pulses for the first time.
J. Mater. Chem. C, 2020,8, 1104-1109
https://doi.org/10.1039/C9TC06159B
Orange-red and white-emitting nonconventional luminescent polymers containing cyclic acid anhydride and lactam groups
Nonconventional luminescent copolymers poly(itaconic anhydride-co-vinyl caprolactam) (PIVC) and poly(itaconic anhydride-co-vinyl pyrrolidone) (PIVP) emit strong orange-red and bright white emissions, respectively.
J. Mater. Chem. C, 2020,8, 1017-1024
https://doi.org/10.1039/C9TC05948B
A broadband cyan-emitting Ca2LuZr2(AlO4)3:Ce3+ garnet phosphor for near-ultraviolet-pumped warm-white light-emitting diodes with an improved color rendering index
Broadband cyan-emitting Ca2LuZr2(AlO4)3:Ce3+ garnet phosphors enabled to fill the cyan gap in the emission spectra of near-ultraviolet-pumped warm-white LEDs, thus resulting in improved color rendering index.
J. Mater. Chem. C, 2020,8, 1095-1103
https://doi.org/10.1039/C9TC04952E
Greatly enhanced discharge energy density and efficiency of novel relaxation ferroelectric BNT–BKT-based ceramics
The 0.65(NBT-BKT)–0.35SBT ceramic possesses an ultra-high recoverable energy storage density (Wrec ∼ 4.06 J cm−3) and maintains a relatively high efficiency (η = ∼87.3%).
J. Mater. Chem. C, 2020,8, 591-601
https://doi.org/10.1039/C9TC05528B
Flexible PVDF/carbon materials/Ni composite films maintaining strong electromagnetic wave shielding under cyclic microwave irradiation
In current work, multiwalled carbon nanotubes (MWCNTs), graphene nanoplatelets (GnPs) and nickel (Ni chains or flowers) were evenly dispersed in poly(vinylidene fluoride) (PVDF) matrices to fabricate composite flexible films.
J. Mater. Chem. C, 2020,8, 500-509
https://doi.org/10.1039/C9TC05462F
About this collection
To mark the Lunar New Year, this web collection features the top 50 most popular articles published in Journal of Materials Chemistry C in 2020 by corresponding authors based in Asia.
Congratulations to all of the authors whose articles have been featured!