Silicon Nanowires (IMAGE) Max-Planck-Gesellschaft Caption Silicon nanowires produced with aluminium as a catalyst. (a) Schematic representation of a silicon nanowire. (b) Dyed scanning electron microscopic image of silicon nanowires (approximately 40 nanometers in diameter). Credit Max Planck Institute for Microstructure Physics Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.