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Title: Materials Suitable for preparing Inorganic nanocasts of butterflies and other insects
Authors: Silver, J
Fern, GR
Ireland, TG
Issue Date: 2015
Publisher: IOP Publishing LTD
Citation: 6TH International conference on optical, optoelectronic and photonic materials and applications (ICOOPMA), 619, ARTN 012051, (2015)
Abstract: Replication of 3D-structures, in particular those that have a periodic modulation of a dielectric material at optical wavelengths and below have proven very difficult to fabricate. The majority of such replication techniques are complex or use moisture sensitive precursors requiring the use of for example a glove box. Here we demonstrate how an air stable supersaturated europium-doped yttrium nitrate phosphor precursor solution has the ability to easily impregnate a structure or produce a cast yielding faithful replicas composed of Y2O:Eu3+ after a final short annealing step. New replicas of Lepidoptera (moth) wing scales using field emissionscanning electron microscopy, structures down to 10 nm have been imaged. Moreover as these replicas are made of phosphors, their luminescence in some cases may be modulated by the internal periodic modulation built into their structures. In this work we will discuss more recent results on the use of the phosphors for making nanocasts of moth wing scales and show a range of beautiful pictures to show what the method can achieve.
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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