Issue 28, 2023

Ordered porous RGO/SnO2 thin films for ultrasensitive humidity detection

Abstract

In this work, ordered porous thin films of reduced graphene oxide and tin oxide (rGO/SnO2) were synthesized by a polystyrene sphere monolayer colloidal crystal template method, and their gas-sensing properties were systematically studied. The formed amorphous SnO2 and partially reduced graphene oxide were analyzed using several complementary material characterization techniques. The results show that the incorporation of rGO significantly improved the humidity sensitivity and the electrical conductivity of the sensor relative to the pristine SnO2 thin film. Fast response time and excellent selectivity towards humidity were also achieved for the rGO/SnO2 composite film. The long-term stability of the rGO/SnO2 sensor was confirmed by comparing its performance to a commercial humidity sensor. The enhanced sensor performance is attributed to the synergistic effects of the incorporation of rGO and the ordered porous structure of the composite film.

Graphical abstract: Ordered porous RGO/SnO2 thin films for ultrasensitive humidity detection

Supplementary files

Article information

Article type
Paper
Submitted
20 Mar 2023
Accepted
12 Jun 2023
First published
13 Jun 2023

J. Mater. Chem. C, 2023,11, 9586-9592

Author version available

Ordered porous RGO/SnO2 thin films for ultrasensitive humidity detection

Z. Li, D. W. Gardner, Y. Xia, S. Zhao, A. Pan, N. Goel, S. Bart, C. Liu, J. Yi, C. Carraro and R. Maboudian, J. Mater. Chem. C, 2023, 11, 9586 DOI: 10.1039/D3TC00983A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements