LEDs that are completely free of heavy metals have been successfully created by researchers at the Karlsruhe Institute of Technology and the University of Toronto. The highly efficient and heavy-metal-free LEDs were made by utilizing silicon nanocrystals that are only a few nanometers across. The silicon-based light-emitting diodes (SiLEDs) should … [continued]
A community energy storage (CES) system has been installed in North York, in Toronto, Canada. It is a delight to write about community energy projects, as they bring money to local communities, and sometimes employment. This one provides direct backup (as opposed to power station backup) and facilitates a reliable supply … [continued]
As far as innovation on the technology front, this one is a winner. In tabulating efficiency ratings, however, quantum cells don’t seem to perform as well as either silicon-based or CIGS solar cells. This may soon change. Nature Materials writes that a new efficiency record for wrapping colloidal quantum dot solar cells may represent a step towards narrowing the gap.
