Themed collection 2025 Journal of Materials Chemistry C Chinese New Year collection

In recent years, bismuth-based semiconductors have become a research hotspot in the new semiconductor field due to their unique optical and electronic properties.

Two dimension (2D) material-based photodetectors usually indicate excellent properties such as ultrafast and broadband response, but the atomic thickness of 2D materials usually leads to low absorption coefficient.

Multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters have broad applications in organic light-emitting diodes (OLEDs).

A broadband green-emitting BaY₂Sc₂Al₂SiO₁₂:Ce³⁺ garnet phosphor enables warm-white LEDs with high R_a of 93.3 and high LE of 105.3 lm W⁻¹.

Spiro-4 exhibits more matched energy levels with perovskite, a higher glass transition temperature, higher hole mobility, and enhanced hole extraction ability than other positional isomers, delivering a power conversion efficiency of 23.38%.

Se-annulated PDI-SePDI device achieved a 56.64% elevated PCE of 5.31%, which was mainly due to enhanced exciton dissociation, suppressed charge recombination, and increased charge mobility benefiting from beneficial microstructural morphology.

In this work, we have successfully synthesized a long-term stable and highly efficient blue-emitting SMAO:Eu²⁺ phosphor with a double luminescence center, which does not significantly disrupt melatonin production in human-centric WLED lighting.

Traditional optical communication using single narrow-band photodetectors (PDs) has poor confidentiality because all information and data are exposed to free space.

An ice dissolution-normal pressure drying strategy based on graphite nanosheet was proposed to prepare porous PVDF foams, which own exceptional microwave absorption (RL_max = −57.68 dB, EAB = 6.86 GHz) and compression strength (300.9 kPa).

We have successfully achieved high energy storage density and efficiency under low electric fields through the compositional synergetic design of a ternary solid solution system, Bi_0.5Na_0.5TiO₃–BaZr_0.3Ti_0.7O₃–NaNbO₃.

Exploring novel two-dimensional carbon-based materials with superior properties is of special importance for applications in nano-optoelectronics.

The multi-mode luminescent anti-counterfeiting materials Sr₂Ta₂O₇:Tb³⁺, Tm³⁺ were prepared, which possessed DC, UC, PSL, and PersL modes.

The modification of a polyanionic positive electrode material LiMnPO₄ by transition metal doping was experimentally studied on the basis of carbon coating in order to address the drawbacks of low electronic conductivity and charge–discharge performance.

By first-principles calculations, we find that valleytronic and piezoelectric properties coexist in Janus MoAZ₃H ML materials, providing wide applications in the fields of valleytronics and energy conversion for MoAZ₃H MLs.

Strain-induced topologically nontrivial phase and valley polarized quantum anomalous Hall effect in the 2D Janus SVSiN₂ monolayer.

g-C₃N₄ nanosheets are modified with Pt single atoms at 1.5 at% through a low-temperature incipient wetness impregnation method followed by high-temperature pyrolysis, increasing the photocatalytic H₂ production rate by two orders of magnitude.

PVA/KGM dual-network hydrogel doped with carbon nanotube-collagen corona has excellent temperature adaptability as a flexible strain sensor for stable monitoring of human motion.

The double luminescence centers of the Y₂Mg₂Al₂Si₂O₁₂:Cr³⁺ phosphor are accurately analyzed by a site elimination strategy.

A multifunctional PVA/cellulose hydrogel electrolyte prepared using a simple method is used in flexible supercapacitors.

Within this paper, the roles of MeO-2PACz in improving device performance were investigated. Afterwards, the NiO_x prepared at low temperature is introduced to improve the coverage of SAM, further optimizing the energy level alignment and passivating defects.