Themed collection 2025 Journal of Materials Chemistry C Lunar 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.

The hydride YSc₂H₂₄ shows superconductivity near room temperature, driven by its distinct cage-like arrangement. This insight offers exciting potential for advancing superconducting materials.

Here the authors presented BPA-passivated FAPbBr₃ NCs. The presence of –PO groups in the BPA plays a critical role in preventing superoxide formation, resulting in high-performance LEDs with an efficiency of 12.9% and a luminance of 29 280 cd m⁻².

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.

Through high-throughput DFT, we explore AHC in 2904 full Heusler compounds, identifying several with superior AHC values, emphasizing the impact of valence electrons and electronegativity, and revealing their potential for spintronic applications.

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%.

The interstitial charge in 2D HfI₂ exhibits high mobility due to weak lattice perturbation, and the high mobility induces a high power factor and ZT value.

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.

Time-resolved spectroscopies unveil the additional effects of the widely used methylammonium chloride (MACl) additive on FAPbI₃ photoabsorber in perovskite solar cells, spontaneously modulating heterointerfaces for accelerating carrier injections.

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).

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

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.

Lead-free double perovskite materials have attracted lots of interest because they can be doped with luminescence activators to modify their optical characteristics and improve photoluminescence performances.

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.

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

n-Type ohmic contact with zero tunneling barriers in the vertical direction of the transistor and quasi-ohmic contact with ultra-low SBH in the lateral direction can be obtained by surface engineering.