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Switching colors with electricity
journal contribution
posted on 2014-07-30, 16:03 authored by Roger J. MortimerIn response to a small electrical voltage
(typically around 1 volt), electrochromic
materials will change, evoke
or bleach their color. The electricity induces
in the material a process of either
reduction (gain of electrons) or oxidation
(loss of electrons). A chemical has a characteristic
range of energies over which
it will interact with wavelengths in the
electromagnetic spectrum, but these
reduction or oxidation processes (collectively
called redox reactions) alter the
energy bands the chemical will absorb.
In electrochromic materials, the change
corresponds to the visible region of the
electromagnetic spectrum.
History
School
- Science
Department
- Chemistry
Published in
AMERICAN SCIENTISTVolume
101Issue
1Pages
38 - 45 (8)Citation
MORTIMER, R.J., 2013. Switching colors with electricity. American Scientist 101 (1), pp. 38-45.Publisher
© Sigma XiVersion
- VoR (Version of Record)
Publication date
2013ISSN
0003-0996Publisher version
Language
- en