Wednesday, September 1, 2010

Multi-layer gallium stacks

Sun Shines on Solar Energy Future

Instead of thin single-layer gallium arsenide deposited on small wafers, the Illinois group tried to create ‘pancake’-like stacks of 10 layers deposited at one go and peel the layers off individually, transfer them and lay them side by side. Giving all details of this procedure, Professor Rogers, the Lee J. Flory Founder Chair in Engineering Innovation & Professor of materials science and engineering and of chemistry said, “We’re creating bulk quantities of material, as opposed to just the thin single-layer manner in which it is typically grown…. “You really multiply the area coverage, and by a similar multiplier you reduce the cost, while at the same time eliminating the consumption of the wafer.”