Issue 31, 2013

Facile fabrication of tunable colloidal photonic crystal hydrogel supraballs toward a colorimetric humidity sensor

Abstract

We report an alternative pathway for the facile fabrication of tunable colloidal photonic crystal (TCPC) hydrogel supraballs via a simple microfluidic device for the first time. The TCPC hydrogel supraballs immobilized the CPC structure into a PAm hydrogel, which has properties suitable for humidity sensing and volume phase transition behavior. Thus, the as-prepared TCPC hydrogel supraballs can monitor a very broad humidity range by obvious color changes rather than traditional volume changes suffering from a time-consuming gravimetric measurement. The color changes are reversible and durable corresponding to humidity sensitivity, and cover almost the whole visible spectrum. More interestingly, the optical stopband of the spherical TCPCs is angle-independent on the curved surface. Furthermore, this procedure also provides a new insight into the creation of novel micro-scaled stimuli-responsive CPC devices.

Graphical abstract: Facile fabrication of tunable colloidal photonic crystal hydrogel supraballs toward a colorimetric humidity sensor

Article information

Article type
Paper
Submitted
10 Apr 2013
Accepted
03 Jun 2013
First published
25 Jun 2013

J. Mater. Chem. C, 2013,1, 4685-4690

Facile fabrication of tunable colloidal photonic crystal hydrogel supraballs toward a colorimetric humidity sensor

S. Yin, C. Wang, S. Liu and S. Chen, J. Mater. Chem. C, 2013, 1, 4685 DOI: 10.1039/C3TC30659C

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