# Enhancement of Photoluminescence Properties via Polymer Infiltration in a Colloidal Photonic Glass

## TL;DR

This paper shows how adding a green-emitting polymer to photonic glasses improves light emission properties, which could be useful for lasers and sensors.

## Contribution

The study introduces a method to enhance polymer photoluminescence by infiltrating it into self-assembled photonic glasses.

## Key findings

- Infiltration of a green-emitting polymer increases photoluminescence quantum yield significantly.
- The polymer's photoluminescence decay time increases by 3 ps after infiltration.
- The system is proposed as a low-cost platform for lasers and bio-sensors.

## Abstract

Photonic glasses (PGs) based on the self-assembly of monosized nanoparticles can be an effective tool for realizing disordered structures capable of tailoring light diffusion due to the establishment of Mie resonances. In particular, the wavelength position of these resonances depends mainly on the morphology (dimension) and optical properties (refractive index) of the building blocks. In this study, we report the fabrication and optical characterization of photonic glasses obtained via a self-assembling technique. Furthermore, we have demonstrated that the infiltration of these systems with a green-emitting polymer enhances the properties of the polymer, resulting in a large increase in its photoluminescence quantum yield and a 3 ps growing time of the photoluminescence time decay Finally, the development of the aforementioned system can serve as a suitable low-cost platform for the realization of lasers and fluorescence-based bio-sensors.