Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Time-temperature integrating optical sensors based on gradient colloidal crystals

Title data

Schöttle, Marius ; Tran, Thomas ; Feller, Tanja ; Retsch, Markus:
Time-temperature integrating optical sensors based on gradient colloidal crystals.
In: Advanced Materials. (2021) . - No. 2101948.
ISSN 1521-4095
DOI: https://doi.org/10.1002/adma.202101948

Official URL: Volltext

Abstract in another language

Manipulation-free and autonomous recording of temperature states for extended periods of time is of increasing importance for food spoilage and battery safety assessment. An optical readout is preferred for low-tech visual inspection. Here we introduce a concept for time-temperature integrators based on colloidal crystals. We combine two unique features in this class of advanced materials: 1) The film-formation kinetics can be controlled by orders of magnitude based on mixtures of particles with distinct glass transition temperatures. 2) A gradual variation of the particle mixture along a linear gradient of the colloidal crystal enables local readout. Tailor-made latex particles of identical size but different glass transition temperatures provide a homogenous photonic stopband. The disappearance of this opalescence is directly related to the local particle ratio and the exposure to a time and temperature combination. Our sensing material can be adjusted to report extended intermediate and short excessive temperature events, which makes it specifically suitable for long-term tracing and threshold applications.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: film formation kinetics; structural colors; photonic crystals; infusion withdrawal coating; binary mixtures
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I > Chair Physical Chemistry I - Univ.-Prof. Dr. Markus Retsch
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Research Institutions > Research Centres > Bayerisches Zentrum für Batterietechnik - BayBatt
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Research Institutions > EU Research Projects > VISIRday
Graduate Schools > Elite Network Bavaria > Macromolecular Science
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Affiliated Institutes
Research Institutions > EU Research Projects
Graduate Schools
Graduate Schools > Elite Network Bavaria
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 04 Sep 2021 21:00
Last Modified: 06 Sep 2021 05:35
URI: https://eref.uni-bayreuth.de/id/eprint/66930