The researchers, Wenshou Wang and coauthors at Shandong University in China; the University of California, Riverside; and Lawrence Berkeley National Laboratory, have published a paper on a light-printable rewritable paper in a recent issue of Nano Letters.
The paper can be printed with light - no ink required, the paper feels like normal paper to the touch, but it’s coated in color-changing nanoparticles that react to UV light. The technology works simply enough: a UV light printer zaps the paper everywhere except where the text is meant to be. The next then boldly stands out against the clear, light-zapped background.
Yadong Yin, Chemistry Professor at the University of California, Riverside told ‘’The greatest significance of our work is the development of a new class of solid-state photoreversible color-switching system to produce an ink-free light-printable rewritable paper that has the same feel and appearance as conventional paper, but can be printed and erased repeatedly without the need for additional ink.”
And our work is believed to have enormous economic and environmental merits to modern society.
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