In this presentation, a new type of etalon for ultrafast colorimetric vapor sensor is introduced. The etalon consists of reflector, vapor-responsive hydrogel layer, and disordered plasmonic nanoparticles. This etalon presents dramatically fast gas-responsive time (~ 0.1s) because the disordered nanoparticles with certain ligand can form membrane pores smaller than the mean free path of penetrating gas. Among several candidates, thiocyanate ligand that provides optimized temporal and optical properties as effective medium is chosen. As a demonstration, the disordered nanoparticle-based etalon is applied to ultrafast humidity-responsive structural colors and an image sticker that instantaneously changes the displayed image to external humidity.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.