GIST researchers have developed a perovskite mini-module with 22.56% efficiency by improving the SnOâ‚‚ electron transport layer with PEI, reducing defects and electron loss. The module retained 94% of ...
Do you like buses, or do you just like the flippy-flappy displays they use to show route information? Either way, you’ll probably love the flip-disc clock created by [David Plass]. The build is based ...