VEM Vacuum Engineering and Materials



  • Chemical Symbol: Mo
  • Atomic Number: 42
  • Atomic Weight: 95.96
  • Density: 10.28 g·cm−3
  • Melting Point: 2896 K
  • Boiling Point: 4912 K
  • Heat of Fusion: 37.48 kJ·mol−1
  • Heat of Vaporization: 598 kJ·mol−1
  • Molecular Heat Capacity: 24.06 J·mol−1·K−1
  • Electrical Resistivity: (20 °C) 53.4 nΩ·m
  • Thermal Conductivity: 138 W·m−1·K−1
  • Thermal Expansion: (25 °C) 4.8 µm·m−1·K−1



Photovoltaics are a method of generating electrical power by converting light into electricity. There are a variety of solar cell technologies competing for highest efficiency and lowest cost. Thin film technology is crucial to a solar cell, and VEM has the answers with our high purity Sputtering Targets and Evaporation Materials. The most common technologies are crystalline silicon (c-Si), Cadmium Telluride (CdTe), and Copper Indium Gallium Selenide (CIGS). VEM provides materials for all of these technologies.

RF Wireless Communications

The rapid growth of smartphones has driven a demand for high speed communications devices. The explosive growth of this industry requires significant high quality materials to keep up with the constant new innovations. These materials must be of high purity and low resistivity to provide maximum performance. We supply ultra high purity gold Evaporation Materials in any shape or size you may need at fair prices. VEM is working with all of the major RF Wireless device manufacturers to find solutions to their next generation devices.