Photochromism from wavelength-selective colloidal phase segregation.

ABSTRACT: Phase segregation is ubiquitously observed in immiscible mixtures, such as oil and water, in which the mixing entropy is overcome by the segregation enthalpy^1-3. In monodispersed colloidal systems, however, the colloidal-colloidal interactions are usually non-specific and short-ranged, which leads to negligible segregation enthalpy⁴. The recently developed photoactive colloidal particles show long-range phoretic interactions, which can be readily tuned with incident light, suggesting an ideal model for studying phase behaviour and structure evolution kinetics^5,6. In this work, we design a simple spectral selective active colloidal system, in which TiO₂ colloidal species were coded with spectral distinctive dyes to form a photochromic colloidal sw

SUBMITTER: Zheng J 

PROVIDER: S-EPMC10191859 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature