Torsion-Induced Geometric Confinement and Tunable Nonlinear Optical Gain in Mesoscopic Quantum Wires

Screw dislocations and uniform torsion in helically twisted nanowires create geometry-controlled electron confinement without external potentials, enabling tunable nonlinear optical gain and state-selective amplification in the mid-IR/THz range.

#QuantumNanophotonics #DefectEngineering #Research

Researchers use engineered defects to boost graphene performance

Scientists have developed a single‑step CVD process using azupyrene to embed 5‑7 carbon ring defects into graphene, enabling tunable defect density and boosting gas‑sensor response. getnews.me/researchers-use-engineer... #graphene #defectengineering

Size and Chemical Environment Control Nanopore Geometry in 2D MoS2: From Irregular to Triangular Defects This work addresses a longstanding challenge of developing a predictive framework for defect topologies in 2D MoS2. By combining density functional theory calculations, kinetic Monte Carlo simulation...

Our work on modeling extended defects in MoS2 is now out in Small!

onlinelibrary.wiley.com/doi/10.1002/...

We show how size and chemical environment affect nanopore geometry in MoS2, changing pore shapes from irregular to triangular.

#2Dmaterials #Nanopores #MaterialsModeling #DefectEngineering

Material design by means of defect engineering: German Re...

press.uni-mainz.de/material-design-by-means... #chemistry #DefectEngineering #MaterialDesign