Bright, noniridescent structural coloration from clay mineral nanosheet suspensions.

ABSTRACT: Structural colors originate by constructive interference following reflection and scattering of light from nanostructures with periodicity comparable to visible light wavelengths. Bright and noniridescent structural colorations are highly desirable. Here, we demonstrate that bright noniridescence structural coloration can be easily and rapidly achieved from suspended two-dimensional nanosheets of a clay mineral. We show that brightness is enormously improved by using double clay nanosheets, thus optimizing the clay refractive index that otherwise hampers structural coloration from such systems. Intralayer distances, and thus the structural colors, can be precisely and reproducibly controlled by clay concentration and ionic strength independently, and noniridescence is readily and effortles

SUBMITTER: Michels-Brito PH 

PROVIDER: S-EPMC8791460 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature