Electrode films of lanthanide diphthalocyanines undergo a series of reversible color changes that make them potentially very attractive as flat-panel color display materials. Research on these compounds has revealed a complex scheme of electrode processes that is not yet fully characterized. The solid organic phases within the faradaic system include new room-temperature anion and cation conductors, as well as electronic semiconductors. Application of diphthalocyanine electrochromics to practical display products will depend on development of adequate cycle life and a technique for matrix addressing. (Author)
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M. M. Nicholson (1982) studied this question.
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