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An ink‐jet printable and re‐writable full color reflective mode display is developed by the position and concentration controlled deposition of a single, colorless, water base ink containing a reversible cross‐linking agent, ammonium persulfate onto a transparent block copolymer photonic crystal film, as described in article number 1700084, by Edwin L. Thomas, Cheolmin Park and co‐workers. The information...
Structural colors (SCs) of photonic crystals (PCs) arise from selective constructive interference of incident light. Here, an ink‐jet printable and rewritable block copolymer (BCP) SC display is demonstrated, which can be quickly written and erased over 50 times with resolution nearly equivalent to that obtained with a commercial office ink‐jet printer. Moreover, the writing process employs an easily...
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