Journal of Materials Chemistry C

The recent chemical exfoliation of layered MAX phase compounds to novel two-dimensional transition metal carbides and nitrides, the so-called MXenes, has brought a new opportunity to materials science and technology.

We clarified the chemical structure of typical “bottom-up” CDs and proved that IPCA is the molecular state photoluminescence center.

Ultrathin graphene, a 2D material, demonstrates outstanding features and rapid growth for EMI shielding due to its strong absorption towards electromagnetic waves in composites. It is sought after for communication, electronic devices, information security, electromagnetic pollution defense and healthcare.

The microwave absorption, electromagnetic interference shielding, and microwave response mechanism of graphene hybrids are highlighted, including relaxation, charge transport, magnetic resonance,etc.

Strain sensors with high sensitivity are reported in the thermoplastic polyurethane nanocomposites with ultralow graphene loading.

Ultrathin graphene exhibits highly efficient microwave absorption at elevated temperatures, which is attributed to the cooperation of dipole polarization and hopping conductivity. The ultrathin graphene composites show different dependences on concentrations and temperature towards imaginary permittivity and microwave absorptions.

The phenomenon of charge carrier traps in organic semiconductors and their impact on electronic devices are reviewed.