# MoOx-Based Colorimetric Sensor for Ultraviolet Visualization

## TL;DR

A new MoOx-based sensor detects ultraviolet light effectively, offering a reliable and practical solution for personal protection against UV radiation.

## Contribution

The development of MoOx nanostructures as a highly selective and stable UV sensor with visualization capabilities.

## Key findings

- MoOx nanostructures show high uniqueness, selectivity, and stability for UV detection.
- The sensor enables rapid detection and visualization of UV radiation under full-band light.
- The sensor improves reliability and practicality through visual analysis and signal output.

## Abstract

Due to the depletion of the global ozone layer and the presence of ozone holes, humans are increasingly exposed to threats from solar ultraviolet radiation. Therefore, researching and developing a highly selective, sensitive, simple, and fast ultraviolet sensor is of significant importance for personal protection. In recent years, new nanomaterials have shown good application prospects in the research of ultraviolet sensors. MoOx nanostructures were prepared by a hydrothermal method. The experimental results show that, compared to traditional photochromic compounds, the new MoOx nanostructures exhibit high uniqueness, high selectivity, and excellent stability, and can perform rapid and accurate detection under full-band light. The beam sensor can not only detect through traditional electrical signal output, but also amplify, display, and analyze the beam through visualization and visual analysis, further improving the reliability and practicality of its application.