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Air Liquide
Air Liquide worldwide
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Engineering & Construction


Large projects


1. Air Liquide supplies air gases (nitrogen, argon, etc.), specialty gases (silane, ammoniac, etc.), and advanced precursors.

2. These gases and precursors are used to:

  • etch silicon wafers
  • render them semiconducting, i.e., able to produce electricity via the diffusion of phosphorus
  • cover them with an anti-reflection coating to maximize light transmission
  • improve yields with innovative coatings

The challenge is to provide efficient precursors that allow manufacturers to optimize their production costs and, in so doing, make photovoltaic electricity competitive.

3. The use of solar energy to meet the electricity needs – of individuals, power plants, remote sites, etc. – is on the rise.