Alessandro didn't get quite what he expected at the haircutter's! But it is quite the fashion.
I'm back at work 50% and started yesterday by working with my trainee to make CIGS (copper-indium-gallium-diselenide) solar cells. There are many steps in this process, all involving coatings on glass of thicknesses on the order of around a micron (a thousandth of a millimeter)or less. Yesterday's step was the making the CIGS layer itself, the heart of the solar cell. I started at 10am and was done at midnight - it looks like I've almost finished my 50% worktime for this week!
