Gold Foil

Goodfellow's high-purity Gold Foil (up to 99.999%) is an advanced material prized for its exceptional properties and versatile applications in scientific research and high-tech industries. This noble metal foil exhibits outstanding thermal and electrical conductivity, chemical inertness, and mechanical stability, making it an ideal choice for demanding applications. Gold Foil's unique characteristics include excellent resistance to oxidation and corrosion, high reflectivity, and biocompatibility. These properties stem from gold's high first ionization potential of 9.2 eV, which contributes to its remarkable stability. In the field of electron microscopy, Gold Foil has demonstrated superior performance as a support material for high-resolution imaging of biological specimens. When used in cryogenic electron microscopy (cryo-EM), all-gold supports show a significant reduction in specimen movement compared to traditional carbon-based supports, leading to improved image quality and resolution. The thermal stability of Gold Foil is evident in its minimal contraction (0.3%) when cooled from room temperature to cryogenic temperatures, contributing to its flatness and stability during imaging. In electrical applications, Gold Foil maintains its high conductivity even at low temperatures, unlike amorphous carbon films which exhibit semiconductor-like behavior. This consistent conductivity makes Gold Foil an excellent choice for applications requiring stable electrical properties across a wide temperature range. Goodfellow, a leading supplier of advanced materials, offers high-purity Gold Foil for researchers and industries seeking top-quality substrates for their cutting-edge applications in fields such as electron microscopy, nanotechnology, and advanced sensing devices.