Electroluminescence color-tunable

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Chen BK, Zhong HZ, Zhang WQ, Tan ZA, Li YF, Yu CR, Zhai TY, Bando Y, Yang SY, Zou BS (2012) Highly emissive and color-tunable CuInS2-based colloidal semiconductor nanocrystals off-stoichiometry effects and impoved electroluminescence performance. Adv Funct Mater 22 2081... 

Of particular interest from a sensing perspective is that the color of such structures can vary reversibly, or non-reversibly, with substances entering and leaving the mesopores, as first demonstrated by Arwin and co-workers (Bjorkland 1996). Figure 2 shows the reversible effect of a volatile solvent like ethanol entering the pores. In this regard, mesoporous silicon can truly be described as a silicon chameleon, not only for its tunable color of electroluminescence under bias (Canham... 

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