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 highlights emerging mechanisms that efficiently harness triplet exciton states to significantly enhance electrochemiluminescence (ECL) performance.

Monitoring wound biomarkers is critical for chronic wound management. This review highlights the advanced hydrogel dressings for in situ visual monitoring of a series of key wound biomarkers like pH, glucose, ROS and bacterial products.

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

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.

New hydrogen-bonded tetrabenzoporphyrin thin films were fabricated by a thermal precursor approach and exhibited p-type organic field-effect transistor properties.

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.

A soft actuator based on an MXene/Paper/PI trilayer film is fabricated. It can generate reversible deformation under multi-stimuli and provide integrated sensing, showing potential in wearable devices and human–machine interaction.

A novel ionic hydrogen-bonded framework, viz. DHT-MEL, has been developed by incorporating fluorescent and acid-responsive building blocks. The material shows promising acid-sensing behaviour as well as proton conduction properties.

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.

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

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

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).

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.

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.

The polymorphic transition in TaS₂ has demonstrated rich tunability in physical properties, including modulated charge density wave (CDW) orders and superconductivity (SC), which is crucial for the development of new-concept and functional devices.

Single-benzene fluorophores (SBFs) offer minimalistic access to very small, bright, and electronically tunable emitters via push–pull effects.

Deep eutectic solvent–modified PEDOT:PSS enables single-layer thick, soft, and conductive coatings, enhancing charge transfer and neural interfacing, validated in vitro and in vivo in rat sciatic nerves. Original photograph, cartoon style applied with AI.

We demonstrate that Fano resonance, which boosts molecular device functionality and performance, arises from the precise design of molecular orbitals—one localized and the other delocalized—coupled with a controlled phase.

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

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 Cs₃Cu₂I₅via 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.

Floquet engineering provides a non-contact approach to dynamically tailor electronic band structures and induce topological phase transitions via time-periodic optical fields.

NO₂ is a key atmospheric pollutant, and its efficient detection is crucial for environmental protection and human health.

Combining MD, FGR, and KMC, we show that thermal disorder drives polaron formation and governs charge mobility in acenes. The presented protocol, without any external parameter, is accurate, efficient, and quantitatively reproduces the experiments.

An infrared laser illumination strategy is proposed to strengthen interfacial hydrogen bonds between γ-glycine's carboxylate and PVA's hydroxyl groups via nanoscale photothermal effect, thus promoting dipole alignments and piezoelectric improvements.

The effects of the glass matrix, luminescent centers, and doping concentrations on the optical and scintillation properties of NIR-II scintillating glasses were investigated.

The insertion of the PCBM buffer layer blocks hole migration and facilitates electron transport.

The introduction of graphene improves the electrical properties of the PEDOT:PSS film, and when combined with β-Ga₂O₃ MW, it can effectively increase the strength of the built-in electric field.

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|.

Gyroid-structured piezoceramics fabricated via DLP exhibit an 85% higher piezoelectric coefficient and 8× greater energy harvesting efficiency than conventional solid ceramics.