University of Minnesota engineers have discovered novel technology for producing "electronic ink." The specialized type of ink is made from non-toxic, nanometer-sized crystals of silicon.

Light is emitted from excited argon gas atoms flowing through the glass tube of a plasma reactor. The plasma is a reactive environment used to produce silicon nanocrystals that can be applied to inexpensive, next-generation electronics.

"Imagine a world where every child in a developing country could learn reading and math from a touch pad that costs less than $10 or home solar cells that finally cost less than fossil fuels," said Uwe Kortshagen, a University of Minnesota mechanical engineering professor.

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