Like previous iterations of bendy screens, this one is made of nanocellulose--mashed up wood that's turned into transparent crystals. But what makes this paper different is how that nanocellulose was made; the researchers put biodegradable wood flour through a process called suction-filtration to crystallize it. Typically, nanocellulose is made when the basic material is ground or put under immense pressure, both of which require a lot of energy; suction-filtration is much less energy-intensive. The researchers then infused the resulting material with quantum dots, miniscule semiconductors so small that they behave like quantum particles. The quantum dots are what cause the paper to glow under light.