Design News is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

New solar cells boost satellite power, last longer

New solar cells boost satellite power, last longer

Solar cells that provide as much as 50% more power for Earth-orbiting satellites will help flash back telephone and television signals from space. The cells are based on the two-junction, gallium indium phosphide on gallium arsenide designs developed at the Department of Energy's National Renewable Energy Laboratory (NREL) (Golden, CO). TECSTAR Inc. (City of Industry, CA) licensed two patents covering the technology for space use. It has adapted the NREL technology to use germanium substrates for the epitaxial growth of the cells. This, in turn, should result in greater efficiencies and reduced costs for space missions. Commonly used silicon cells lose about half of their efficiency after five years in space. The gallium indium phosphide top layers of the new NREL cells have far more resistance to radiation damage, giving them a much longer space life. E-mail [email protected]

Hide comments
account-default-image

Comments

  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Publish