# Facile synthesis of CsPbBr3 perovskite for improved stability and luminescence behavior in an aquatic environment

## TL;DR

A new method to synthesize CsPbBr3 perovskite improves its stability and light emission in water, making it more useful for optoelectronic devices.

## Contribution

A facile aqueous-phase synthesis method incorporating strontium to enhance CsPbBr3 perovskite stability and luminescence in aquatic environments.

## Key findings

- The synthesized perovskite remains stable in aqueous solution for up to 264 hours.
- Strontium incorporation enhances photoluminescence intensity and causes a blue shift in emission.
- The method simplifies synthesis and improves practical applicability of CsPbBr3 perovskite.

## Abstract

CsPbBr3 (CPB) perovskite has demonstrated unique advantages as a photoelectric material. However, its stability and optoelectronic properties exhibit significantly susceptibility to environmental conditions during practical applications. Additionally, the synthesis of CPB often involves complex procedures and stringent requirements for the experimental environment, resulting in low yield. In this study, we employed an aqueous-phase synthesis method to incorporate strontium into CPB, aiming to enhance the long-term stability of the perovskite in aqueous solutions. And the introduction of strontium (Sr) is expected to improve the photoluminescent properties of the perovskite. The results demonstrate that the synthesized perovskite remains stable in aqueous solution for up to 264 h, with enhanced photoluminescence intensity and a blue shift attributed to the incorporation of strontium. This approach significantly increases the potential value of CPB perovskite for applications in optoelectronic materials and devices.