Fluorescence Switchable Conjugated Polymer Microdisk Arrays by Cosolvent Vapor Annealing.

ABSTRACT: Depositing minute light emitters into a regular array is a basic but essential technique in display technology. However, conventional lithographic methodologies involve multistep and energy-consuming processes. Here, we develop a facile method in which organic and polymeric fluorescent dyes spontaneously aggregate to form a patterned microarray. We find that a thin film of fluorescent π-conjugated polymer transforms into micrometer-sized aggregates when exposed to binary organic vapor at ambient temperature. The arrayed microaggregates can be formed over the whole substrate surface when using a quartz substrate that is prepatterned with regular hydrophilic boxes and hydrophobic grids. The resultant microarray is applicable to optical memories and displays when photoswitchable fluorophores

SUBMITTER: Yamagishi H 

PROVIDER: S-EPMC7829903 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature