28 Apr '16, 7pm

Plasmonics Make Electrochromic Polymers Fast Enough for Video

Plasmonics Make Electrochromic Polymers Fast Enough for Video

Electrochromic polymers that change color when a voltage is applied already have a pretty impressive wow factor, turning windows from clear to tinted with a flip of a switch. Now researchers at Sandia National Laboratories have put this impressive feat to shame. They have devised a way to make the usually slow responding electrochromic polymers change colors fast enough so that they could be used as a material for flat-panel TVs . The problem that has handicapped electrochromic polymers up to now has been that in order for them to achieve a good contrast between bright and dark pixels it has been necessary for them to be relatively thick. While this is good for creating contrast, it slows down the diffusion times for ions and electrons to change the polymer’s charge state. This has limited their use to static displays or darkening windows. The Sandia researchers overcome t...

Full article: http://spectrum.ieee.org/nanoclast/semiconductors/devices...

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