Beilstein J. Nanotechnol.2021,12, 139–150, doi:10.3762/bjnano.12.11
work is to determine the varying dielectric constant of a biological nanostructured system via electrostatic force microscopy (EFM) and to show how this method is useful to study naturalphotoniccrystals. We mapped the dielectric constant of the cross section of the posterior wing of the damselfly
; electrostatic force microscopy (EFM); naturalphotoniccrystals; relative permittivity; structural colors; Introduction
The dielectric constant, or relative permittivity, is a fundamental physical property that is crucial for describing various biological, chemical, or physical phenomena. It is a material
such as the full understanding of proteins [1][2] or in the development of solar cells [3].
Naturalphotoniccrystals are exciting nanostructured systems in which the dielectric properties play a fundamental role [4]. Many of them are biological systems where the richness of colors, produced by
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Figure 1:
Optical images of the iridescent hind wing of the male damselfly Chalcopteryx rutilans (Rambur) (Od...