Printable organic electrochemical circuit to record time-temperature history
2010 (English)In: ELECTROCHIMICA ACTA, ISSN 0013-4686, Vol. 55, no 23, 7061-7066 p.Article in journal (Refereed) Published
An electrochemical circuit to record time-temperature history has been realized by using the propagation of over-oxidation fronts in stripes of poly(3,4-ethylenedioxythiopehene) blended with poly(styrenesulfonate) (PEDOT:PSS). The over-oxidation front propagation has been characterized and related to the phase change of polyethylene glycol (PEG) electrolytes. The electrolytes were chosen to have a phase transition in the temperature interval to be monitored, resulting in large conductivity variations and thereby an easily interpreted output. A demonstrator has been fabricated and shown to detect a temperature increase and a following temperature decrease. This very simple device is cheap to produce and could be used to monitor the temperature of packages.
Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam. , 2010. Vol. 55, no 23, 7061-7066 p.
Over-oxidation, PEDOT:PSS, Temperature, Timer, Polyethylene glycol
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-60252DOI: 10.1016/j.electacta.2010.06.073ISI: 000281994700020OAI: oai:DiVA.org:liu-60252DiVA: diva2:355826