Themed collection 2023 Journal of Materials Chemistry C Lunar New Year collection

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.

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.

This review covers recent advances in multiple boron–nitrogen doped π-conjugated systems including their synthetic strategies and applications in optoelectronic devices.

Illustration of strain-, pressure-, temperature-, humidity- and gas sensor.

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.

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.

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.

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).

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.

A high-performance ultra-narrow-band green-emitting phosphor LaMgAl₁₁O₁₉:0.28Mn²⁺ (λ_em = 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.

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.

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.

Photopatternable perovskite quantum dot–polymer composites with feature sizes as small as 3.86 μm are prepared for light-emitting applications.

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.

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.

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.

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.

We report the synthesis method of ultralong one-dimensional (1D) inorganic perovskite nanorods with single-crystal-like molecular orientation for photodetector applications.

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%.

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.

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.

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.

Centimeter-sized crystals of an iodate with a very large ultraviolet cutoff edge and optical anisotropy were discovered.

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.

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.

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.

Titanium nitride (Ti₂N) MXene QDs display efficient deep-UV absorption and light emission.

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.

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.

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.