With annual growth rates of more than 35%, the photovoltaic industry is one of the world’s booming business sectors. Combined photovoltaic installations are expected to contribute approximately 5% of the worldwide electricity generation by 2020. The production of solar cells requires large quantities of ultra-pure gases. Air Liquide has just concluded multiple major turnkey gas supply contracts with some of the largest solar cell manufacturers in the world, confirming its position as the numb...