Ng TN, Schwartz DE, Mei P, Krusor B, Kor S, Veres J, Bröms P, Eriksson T, Wang Y, Hagel O, Karlsson C. Printed dose-recording tag based on organic complementary circuits and ferroelectric nonvolatile memories.
Sci Rep 2015;
5:13457. [PMID:
26307438 PMCID:
PMC4549707 DOI:
10.1038/srep13457]
[Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 07/28/2015] [Indexed: 11/23/2022] Open
Abstract
We have demonstrated a printed electronic tag that monitors time-integrated sensor signals and writes to nonvolatile memories for later readout. The tag is additively fabricated on flexible plastic foil and comprises a thermistor divider, complementary organic circuits, and two nonvolatile memory cells. With a supply voltage below 30 V, the threshold temperatures can be tuned between 0 °C and 80 °C. The time-temperature dose measurement is calibrated for minute-scale integration. The two memory bits are sequentially written in a thermometer code to provide an accumulated dose record.
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