Power/Performance Bits: May 31


Solar thermophotovoltaics A team of MIT researchers demonstrated a device based on a method that enables solar cells to break through a theoretically predicted ceiling on how much sunlight they can convert into electricity. Since 1961 it has been known that there is an absolute theoretical limit, called the Shockley-Queisser Limit, to how efficient traditional solar cells can be in their ... » read more

Interacting With Printed Sensors


By Michael P.C. Watts If there is one feature that distinguishes all our modern portable devices from the traditional PC (a wonderful concept—the “traditional PC”), it’s the way we interact. Separate keyboards are done. It's all touchscreens on pretty much everything, along with other sensor opportunities. There are many uses for the built-in cameras in cell phones from videoconfere... » read more