Nanoparticles show promise as an ingredient in solar cells, where they could absorb light and generate electrons. But photovoltaic devices made from nanoparticles are still far less efficient than conventional silicon cells. This is partly because some of the liberated electrons never reach an electrode. Now researchers at the University of Notre Dame in Indiana have doubled the efficiency with which these cells convert ultraviolet light to electricity. They deposited single-walled carbon nanotubes on an electrode to form a scaffold for electron-generating titanium dioxide particles. A carbon nanotube (cylindrical object, left) collects an electron (shown in pink) and provides a more direct route from the nanoparticles (round objects) to the electrode (right). The cells convert ultraviolet light to electrons more efficiently than commercial silicon cells, but they do not yet work with visible light.
Here’s how a Twitter engineer says it will break in the coming weeks
One insider says the company’s current staffing isn’t able to sustain the platform.
Technology that lets us “speak” to our dead relatives has arrived. Are we ready?
Digital clones of the people we love could forever change how we grieve.
How to befriend a crow
I watched a bunch of crows on TikTok and now I'm trying to connect with some local birds.
Starlink signals can be reverse-engineered to work like GPS—whether SpaceX likes it or not
Elon said no thanks to using his mega-constellation for navigation. Researchers went ahead anyway.
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