Themed collection 2023 Journal of Materials Chemistry C Lunar New Year collection
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A brief review on device operations and working mechanisms of organic transistor photomemories
Transistor photomemories have been vastly progressing along with their potential applications utilized in IoT and AI fields. Hence, it is essential to classify the device working principles with device operations to ease further development.
J. Mater. Chem. C, 2022,10, 13462-13482
https://doi.org/10.1039/D2TC01271E
Emerging polymer electrets for transistor-structured memory devices and artificial synapses
This review was aimed to analyze existing polymer-based technologies for electrets used in memory devices and artificial synapses. We categorize five types of electrets and analyze their performance, characteristics, applicability, and limitations.
J. Mater. Chem. C, 2022,10, 13372-13394
https://doi.org/10.1039/D2TC01132H
Multiple-boron–nitrogen (multi-BN) doped π-conjugated systems for optoelectronics
This review covers recent advances in multiple boron–nitrogen doped π-conjugated systems including their synthetic strategies and applications in optoelectronic devices.
J. Mater. Chem. C, 2022,10, 13499-13532
https://doi.org/10.1039/D2TC01106A
Transparent stretchable hydrogel sensors: materials, design and applications
Illustration of strain-, pressure-, temperature-, humidity- and gas sensor.
J. Mater. Chem. C, 2022,10, 13351-13371
https://doi.org/10.1039/D2TC01104B
Recent progress in polymer-based infrared photodetectors
This review summarizes the development and applications of polymer-based organic photodiodes and organic phototransistors, and provides an outlook on their development prospects and obstacles, aiming to propose new design strategies.
J. Mater. Chem. C, 2022,10, 13312-13323
https://doi.org/10.1039/D2TC00646D
Recent advances in materials for and applications of triplet–triplet annihilation-based upconversion
We provide a review of the progress in materials and applications of TTA-UC: biological, environmental/energy, OLED, and other applications. Moreover, an excellent demonstration of TTA-UC based technologies are presented in each chapter.
J. Mater. Chem. C, 2022,10, 4483-4496
https://doi.org/10.1039/D1TC03551G
Modulating up-conversion and non-radiative deactivation to achieve efficient red thermally activated delayed fluorescence emitters
Improving up-conversion and suppressing non-radiative inactivation by employing the novel dibenzothioxanthene acceptor and employing a bulky donor is demonstrated as a new perspective toward highly efficient red organic light-emitting diodes.
J. Mater. Chem. C, 2022,10, 17053-17058
https://doi.org/10.1039/D2TC04138C
Equilibrating the key parameters of thermally activated delayed fluorescence emitters towards efficient red/near-infrared OLEDs
Precisely regulating the key parameters associated with the thermally activated delayed fluorescence process is accomplished with optimized π-bridges or end-groups, affording improved maximum external quantum efficiencies of 18.9% (@630 nm).
J. Mater. Chem. C, 2022,10, 17059-17065
https://doi.org/10.1039/D2TC03933H
Highly stable photomultiplication-type organic photodetectors with single polymers containing intramolecular traps as the active layer
Three polymers, DCP1-3, with PC61BM pendants as intramolecular traps were carefully synthesized, and they were successfully applied in photomultiplication-type organic photodetectors (PM-OPDs) showing excellent intrinsic stability.
J. Mater. Chem. C, 2022,10, 7822-7830
https://doi.org/10.1039/D2TC01297A
High-performance ultra-narrow-band green-emitting phosphor LaMgAl11O19:Mn2+ for wide color-gamut WLED backlight displays
A high-performance ultra-narrow-band green-emitting phosphor LaMgAl11O19:0.28Mn2+ (λem = 517 nm, FWHM ∼24 nm) is prepared by a solid-state reaction in air, which can be applied in a pc-wLED with wide color-gamut value of 131% NTSC and 97.8% Rec. 2020.
J. Mater. Chem. C, 2022,10, 7443-7448
https://doi.org/10.1039/D2TC00850E
Diketopyrrolopyrrole-based conjugated polymers containing planar benzo[c]cinnoline and tetraazapyrene structures for high-performance and long-term stable triboelectric nanogenerators
A promising strategy to simultaneously improve the performance and stability of a triboelectric nanogenerator is demonstrated by using DPP-based conjugated polymers containing planar BZC and TAP structures as the surface modification layer.
J. Mater. Chem. C, 2022,10, 17983-17993
https://doi.org/10.1039/D2TC03551K
Ultralong room-temperature phosphorescence from polycyclic aromatic hydrocarbons by accelerating intersystem crossing within a rigid polymer network
A water-resistance polymer-based room temperature phosphorescence material (RTP) with an ultralong lifetime and afterglow was achieved by doping PAHs within a rigid polymeric network during in situ polymerization.
J. Mater. Chem. C, 2022,10, 17620-17627
https://doi.org/10.1039/D2TC02557D
Highly luminescent perovskite quantum dots for light-emitting devices: photopatternable perovskite quantum dot–polymer nanocomposites
Photopatternable perovskite quantum dot–polymer composites with feature sizes as small as 3.86 μm are prepared for light-emitting applications.
J. Mater. Chem. C, 2022,10, 15941-15947
https://doi.org/10.1039/D2TC01832B
Construction of carbon dots/metal–organic framework composite for ratiometric sensing of norfloxacin
This fluorescent sensing material has the excellent optical properties of g-CDs and the selective detection and adsorption capability of UiO-66 for the target analyte; it determines the norfloxacin concentration via the F432/F530 fluorescence ratio.
J. Mater. Chem. C, 2022,10, 15508-15515
https://doi.org/10.1039/D2TC03414J
Luminescent chiral triangular prisms capable of forming double helices for detecting traces of acids and anion recognition
We synthesized a pair of tetraphenylethylene-based enantiomeric (R)- and (S)-Δ which form double helices. Acid-responsive luminescence of both triangles enables them detecting traces of acids in organic solvents such as CDCl3, CH2Cl2, CHCl3, etc.
J. Mater. Chem. C, 2022,10, 15394-15399
https://doi.org/10.1039/D2TC03506E
Modulation of the intramolecular hydrogen bonding and push–pull electron effects toward realizing highly efficient organic room temperature phosphorescence
A facile design strategy based on the structural control of intramolecular hydrogen bonding and push–pull electron effects was proposed to construct highly efficient UORTP materials.
J. Mater. Chem. C, 2022,10, 13797-13804
https://doi.org/10.1039/D2TC01093C
Observation of intrinsic fluorescence in cobalt ferrite magnetic nanoparticles by Mn2+ substitution and tuning the spin dynamics by cation distribution
In this work, we report the synthesis and detailed characterization of single-domain, optically active, manganese-substituted cobalt ferrite (CoFe2O4) magnetic nanoparticles without any surface functionalization as prospective fluorescent probes for bio-imaging.
J. Mater. Chem. C, 2022,10, 12652-12679
https://doi.org/10.1039/D2TC02605H
Structural engineering of single-crystal-like perovskite nanocrystals for ultrasensitive photodetector applications
We report the synthesis method of ultralong one-dimensional (1D) inorganic perovskite nanorods with single-crystal-like molecular orientation for photodetector applications.
J. Mater. Chem. C, 2022,10, 11401-11411
https://doi.org/10.1039/D2TC01854C
Deep-red light-emitting electrochemical cells based on phosphor-sensitized thermally activated delayed fluorescence
Efficient deep-red electroluminescence can be obtained from light-emitting electrochemical cells (LECs) based on phosphor-sensitized thermally activated delayed fluorescence. The maximum external quantum efficiency of these LECs reaches >5%.
J. Mater. Chem. C, 2022,10, 11211-11219
https://doi.org/10.1039/D2TC01727J
Highly sensitive broadband photomultiplication type all-polymer photodetectors and their applications in optical pulse counting
Broadband photomultiplication type all-polymer photodetectors with the structure of ITO/PFN-Br/PBDB-T : PYF-T-o (3 : 100)/LiF/Au achieve EQEs of 18 000% at 360 nm and 9000% at 850 nm under 4 V, which are applied in an optical pulse counting circuit.
J. Mater. Chem. C, 2022,10, 10888-10894
https://doi.org/10.1039/D2TC02144G
High performance ferroelectric field-effect transistors for large memory-window, high-reliability, high-speed 3D vertical NAND flash memory
This article presents a 3D ferroelectric NAND flash memory with a wide MW, low operation voltage, fast PGM/ERS speed, and higher endurable cycles based on a HfZrO film that shows excellent ferroelectricity even at a relatively thick thickness.
J. Mater. Chem. C, 2022,10, 9802-9812
https://doi.org/10.1039/D2TC01608G
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Interfacial passivation with 4-chlorobenzene sulfonyl chloride for stable and efficient planar perovskite solar cells
A 4-chlorobenzene sulfonyl chloride (CBSC) passivated perovskite solar cell device shows a high-power conversion efficiency (PCE) of 20.02% with improved long-term stability.
J. Mater. Chem. C, 2022,10, 9044-9051
https://doi.org/10.1039/D2TC00982J
Mg(H2O)6[(IO2(OH))2(IO3)]2: a new iodate with a very large band gap and optical anisotropy
Centimeter-sized crystals of an iodate with a very large ultraviolet cutoff edge and optical anisotropy were discovered.
J. Mater. Chem. C, 2022,10, 8776-8782
https://doi.org/10.1039/D2TC01638A
Influence of charge transfer strength on emission bandwidth for multiple-resonance emitters via systematically tuning the acceptor–donor assembly
Tuning the acceptor–donor assembly strategy, which is to lock the benzophenone acceptor and stepwise change the donors, demonstrates that charge transfer dominates the full width at half maximum of the multiple resonance (MR) emitters.
J. Mater. Chem. C, 2022,10, 7866-7874
https://doi.org/10.1039/D1TC06165H
A Zr-MOF nanoflower sensor and its mixed-matrix membrane for the highly sensitive detection of nitroaromatics
A nanoflower-like Zr metal–organic framework CJLU-1 with a 2D layered porous structure and its mixed-matrix membrane were realized as a novel sensing platform for the detection of nitroaromatics in the ppb range.
J. Mater. Chem. C, 2022,10, 7469-7475
https://doi.org/10.1039/D2TC00920J
Formation of magnetic anionic electrons by hole doping
Gate-controlled electrostatic doping induces a spontaneous spin splitting of the anionic electrons in nonmagnetic semiconducting monolayer ZrCl2, enabling electric-field controllable magnetism in electrenes.
J. Mater. Chem. C, 2022,10, 7674-7679
https://doi.org/10.1039/D2TC00564F
Light-emitting Ti2N (MXene) quantum dots: synthesis, characterization and theoretical calculations
Titanium nitride (Ti2N) MXene QDs display efficient deep-UV absorption and light emission.
J. Mater. Chem. C, 2022,10, 6508-6514
https://doi.org/10.1039/D2TC00568A
Isomer engineering of dipyrido[3,2-a:3′,4′-c]phenazine-acceptor-based red thermally activated delayed fluorescent emitters
Study of the donor substitution position effect on the dipyrido[3,2-a:2′,3′-c]phenazine acceptor based red thermally activated delayed fluorescent emitters was carried out using to isomers.
J. Mater. Chem. C, 2022,10, 6043-6049
https://doi.org/10.1039/D2TC00017B
Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy
PCEs of 14.81% and 17.53% are achieved in BHJ and LbL-PSCs with PNTB6-Cl and Y6 as active layers, and DPE and DFB as solvent additives, respectively. The PCE improvement can be confirmed from the optimized crystallinity and morphology of films.
J. Mater. Chem. C, 2022,10, 5489-5496
https://doi.org/10.1039/D2TC00024E
Photocatalytic activity enhancement of Cu2O cubes functionalized with 2-ethynyl-6-methoxynaphthalene through band structure modulation
Inert Cu2O cubes become photocatalytically active with 2E-6-MN functionalization. The molecule-derived bands within the band gap of Cu2O and charge density distribution over the molecule contribute to the photocatalytic activity appearance.
J. Mater. Chem. C, 2022,10, 3980-3989
https://doi.org/10.1039/D1TC05278K
About this collection
To mark the Lunar New Year, this web collection features the top 30 most popular articles published in Journal of Materials Chemistry C in 2022 by corresponding authors based in countries celebrating Lunar New Year.
Congratulations to all of the authors whose articles have been featured!