Highly Integrated In Situ Photoenergy Gas Sensor with Deep Ultraviolet LED.

ABSTRACT: According to the demands of the Internet of Things (IoTs), a gas sensor is demanded to be small, portable, and easy to integrate with the environment or structure in its application. Herein, an ingenious form of in situ photoenergy gas sensor integrated with a deep ultraviolet light-emitting diode (LED) has been designed to achieve ppb level NO2 gas detection at room temperature. In this gas sensor, the deep ultraviolet LED based on AlGaN materials, which has a wider band gap and higher photoexcitation energy, acts as the substrate with emission at 280 nm. The ZnO nanorods of the gas-sensing material were directly grown on 2 inch AlGaN-based LEDs containing thousands of independent light-emitting chips, leading to photosensitive materials with uniform and controllable, as well as a sensor

SUBMITTER: Zhang S 

PROVIDER: S-EPMC7203992 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature