Themed collection Journal of Materials Chemistry C HOT Papers

This perspective explores the intersection between materials research and environmental assessment during the early-stage development of next-generation wearables, encompassing flexible, stretchable, soft, transient, and printed electronics.

This review shows how molecular aggregation enables emergent photophysics (RTP, radical emission, NIR luminescence, photothermal, X-ray scintillation) unseen in single molecules.

A tailored Bridgman growth strategy enables large, high-quality anthracene single crystals with ultrafast decay and ultralow detection limits, achieving high-sensitivity X-ray detection for low-dose applications.

Spiral groups have unique three-dimensional structures, strong rigidity, non-conjugation, and high dipole orientation potential, demonstrating broad application possibilities in creating various high-performance organic electroluminescent materials.

This review discusses different strategies including compositional, additive, and interfacial engineering to suppress the oxidation, reduce defects, and enhance the operational stability of Sn–Pb mixed low-bandgap perovskite solar cells.

This review provides an overview of the developments in high-mobility polymers, integrating the core themes of molecular design, synthetic methods, and functional integration.

Lead-free halide double perovskite nanocrystals (NCs) are promising alternatives to lead-based perovskites, offering eco-friendly composition, robust intrinsic thermodynamic stability, and tunable optoelectronic properties.

Fiber electronics possess flexibility, light weight, and seamless fabric integration, making them well suited for wearable interactive systems.

Microwave dielectric ceramics with dielectric constant (ε_r ≈ 20) for 5G/6G communications, focusing on four material systems—MgTiO₃–CaTiO₃, (Ca,La)(Al,Ti)O₄, LnNbO₄, and Li₂TiO₃.

This review discusses the material selection, device design approaches, and state-of-the-art applications of wearable and implantable transient bioelectronics.

The development of piezoelectric composite (PEC) gas sensors is progressing rapidly, driven by innovations that range from atomic-level material design to system-level integration.

This review summarizes recent advances in AIP Pt(II) complexes, covering design strategies, photophysical mechanisms (RIM, RSDE, oxygen shielding), and applications in imaging, OLEDs, and sensing, while highlighting future development directions.

Metal oxide-based resistive switching memristors are emerging as promising nanodevices for the hardware implementation of neuromorphic computing. We focus on the development of a neuromorphic computing system based on metal oxide memristors.

This review provides a comprehensive overview of the molecular engineering techniques used to control polarity in two-dimensional materials and their applications in optoelectronic devices.

Alternating current electroluminescent (ACEL) devices have become an important direction for the development of visualized smart wearable e-textiles due to their advantages of light weight, flexibility, easy integration, and convenient processing.

Absorption spectra of photoreceptor pigments together with corresponding activators for plant growth LEDs.

This review systematically summarized the synthesis approaches towards both polycrystals and nanocrystals, and discussed the crystal/electronic structure, luminescence principle, and optimized strategies of lanthanide-based Cs₃LnCl₆ metal halides.

ZIF-8-assisted aqueous synthesis for green and blue perovskite phosphors with high stability.

A deep-blue material based on a crossed long-short axis strategy and a large conjugate core, which enables high-lying reverse intersystem crossing and achieves an efficiency of 7.46% at 420 nm with CIE coordinates meeting the BT.2020 standard.

A new mechanism—bipolar electrochemistry—is utilized to develop an ionic memristor with straightforward tuneability of its rectifying memristive current–potential response.

A rapid, green, and cost-effective method for synthesizing carbon dots (CDs) was developed using non-toxic, low-cost precursors via a simple combustion process.

Light-driven self-organized ionogel patterns with modulus gradients for ultrasensitive, customizable sensing.

Localized electron transport channel is developed in inverted PSCs with nanoscale phase-separated PM6:PCBM to inhibit interfacial recombination. Resulting PSCs exhibit high efficiency of 25.60% with good stability.

Adjacent compensated codoping (alloying) is presented as an alternative approach to modify the electrical and optoelectronic properties of semiconductors.

Mn-doped CsBr (Mn²⁺:CsBr), along with phase-engineered Cs₃MnBr₅ and CsMnBr₃ perovskite nanocrystals, were synthesized using a simple and rapid microwave-assisted method that allows for tunable emission colors and high color purity.

An in situ integrated method is used to measure the thermoelectric performance of Bi₂Se₃ thin films. The coupling mechanism between thermal rectification effect caused by structural regulation and thermoelectric parameter is tentatively explored.

A new non-fullerene acceptor, CH-TCl, introduced as the third component, optimizes the active layer morphology, enhances charge transfer, and increases the open-circuit voltage of organic solar cells.

Reservoir computing (RC) using a Pt/Gd-doped CeO₂/CeO₂/Pt memristor is systematically investigated, where its time-dependent weight updates and nonlinear decay characteristics are critical for extracting spatiotemporal features in RC applications.

Hg₂(SeO₃)(TeO₃), a new tellurite–selenite birefringent crystal, showcases a broad transparency range, large birefringence, and high thermal stability, positioning it as a promising birefringent material.

Er³⁺-doped Bi₂TeO₅ ceramics combine reversible dual-stimuli photochromism with switchable upconversion luminescence, offering multifunctional applications in optical security, anti-counterfeiting, and latent fingerprint detection.

Herein, we report a novel multi-component supramolecular self-assembly strategy for the development of tunable multi-color room-temperature phosphorescent (RTP) materials with dual functionalities.

Few-layer Nb₄C₃T_x MXene nanosheets were prepared and tested for n-butanol sensing. The SnO₂/Nb₄C₃T_x nanocomposite was also synthesized, showing excellent n-butanol sensing performance at room temperature.

Lanthanoid 2D MOFs [Ln(MeCOO)(PhCOO)₂] (Ln = Dy, Tb) were grown on silanized Si(100), retaining significant magnetic moments and green Tb luminescence, paving the way for magneto-optical and quantum information devices.

Biological multimodal perception systems play a pivotal role in environmental interactions through the sophisticated integration of multisensory information.

An Si nanoholes array (NHA, with a period of 300 nm)/SnO type-I heterostructure functions well as a self-powered and filterless UV photodetector and exhibits promising potential for anti-interference UV communication.

A schematic of the proposed photonic structure and the transmittance spectra of the grating in amorphous and crystalline phases of Sb₂S₃, which reveals strong nonreciprocal transmission for both TE and TM polarizations.

D/L-cC₃-Py1-OFN displayed pronounced CPL signals using a pre-established supramolecular template through electrostatic and AP interactions, providing a simple and facile approach to the generation of CPL activity.

Optimization procedure of the WUM.

Absorption of this WAMS for TE-mode and TM-mode EM waves propagating along the +z- and −z-directions, respectively.

Catalysts with excellent hydrogen evolution reaction performance were designed by anchoring Pt clusters of different sizes on MXene supports.

Crystallization temperatures as low as 130 °C were obtained for strongly fluorescent conjugated calamitic liquid crystals by selective fluorination and without the aid of flexible side-chains.

H uptake by ZnO nanocrystals is often overlooked despite its impact on materials electronic properties. For ZnO particles from gas phase synthesis we found that oxygen site hydrogenation (OH⁰_O) explains the paramagnetic resonance at g = 1.96.

A novel weakly coupled lead-free ergodic relaxor BaTiO₃–Bi(Zn_2/3Ta_1/3)O₃ is designed to achieve good energy storage properties under low electric fields. The underlying mechanism of the enhanced properties is elucidated.

Yb^III-doped phosphors are promising near-infrared (NIR) emitters for telecommunications and energy conversion.

Backbone engineering of TADF polymers by incorporating carbazole and dibenzofuran units enables tuning of excited-state dynamics. Optimized polymer pNAI-DBF3705 achieves a PLQY of 78% and an EQE of 10% in solution-processed orange-red OLEDs.

This study pioneers a novel in situ strategy for depth-resolved analysis of organic thin films by integrating soft plasma etching with real-time spectroscopy.

By controlling electron donor/acceptor capacity and microenvironmental stiffness in TPEDMI&polymer blends, this work develops a dual-mode platform for rapid solid-state polymer detection and information encryption.

Fe₂O₃ additive changed the crystal structure of NKNS–CZ–BAZ ceramic from the O–T to the R–O–T structure and thus this piezoceramic has excellent piezoelectric properties (d₃₃ = 680 pC N⁻¹ and k_p = 0.47).

A material search scheme is proposed herein to discover novel deep ultraviolet nonlinear optical (NLO) crystals.

Broadband NIR phosphor K₂Na_1−xLi_xAlF₆:Cr³⁺ with excellent thermal quenching resistance was synthesized, to realize night vision and information encryption applications.

This study establishes a novel strategy for self-activated nonreciprocal transmission isolation, exploiting the absorption asymmetry to trigger directional phase transition under high-intensity illumination.

The successful fabrication of artificial synapses is essential for developing highly integrated neuromorphic devices.

The diagram of exciton management and energy transfer processes in the TADF- and phosphor-sensitized EMLs and the EL spectra from 1000 to 10 000 cd m⁻² luminance.

Rapid thermal oxidation at 350 °C for 0.5 h under a controlled oxygen partial pressure synergistically enhances the anti-corrosion and mechanical performance of Ce50 permanent magnets, accompanied with a high coercivity above 12 kOe.

The application of high-entropy strategy successfully realizes quantitative regulation of relaxor state in BNT. The piezoelectric performance can be regularly modified accompanied by a significant improvement in electromechanical coupling behavior.

This work highlights the dual-functionality of PPy coatings, which simultaneously enhances electromagnetic properties and provides oxidative degradation protection in physiologically relevant environments.

Excess HCOO⁻ passivation can suppresses iodine-vacancy defects in Cs₃Cu₂I₅ via carboxyl ligand coordination, boosting PLQY from 30.2% to 87.5%. A resulting WLED achieves CIE coordinates of (0.32,0.33) and a CRI of 83.7.

We report on the synthesis of two novel nanographenes, syn- and anti-dinaphthopentacene. This small variation in structure leads to stark differences in structural and photophysical properties as well as OLED device efficiency.

Zn₂GeO₄ (ZGeO) phosphor exhibits a wide bandgap energy, making it highly suitable for luminescence-based applications spanning the entire electromagnetic spectrum, from ultraviolet (UV) to near-infrared (NIR) wavelengths.

A dual-film platform has been developed that simultaneously removes hydrogen sulfide (H₂S) and disinfects bacteria in wastewater, while enabling real-time visual monitoring through a fluorescent probe.

Highly twisted carbazole-based molecules are developed as donors for exciplex-forming co-hosts of chiral helicene-based emitters for the realization of solution-processed red-emitting CPL-OLEDs with high |g_EL|.

A strong vacancy compensation mechanism was developed. The twin-boundary shear and several lattice defects were nucleated. A low κ_lat value of 1.14 W m⁻¹ K⁻¹ was observed at 1073 K.