Printed dose-recording tag based on organic complementary circuits and ferroelectric nonvolatile memories

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 cel...

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Published inScientific reports Vol. 5; no. 1; p. 13457
Main Authors Nga Ng, Tse, Schwartz, David E., Mei, Ping, Krusor, Brent, Kor, Sivkheng, Veres, Janos, Bröms, Per, Eriksson, Torbjörn, Wang, Yong, Hagel, Olle, Karlsson, Christer
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 26.08.2015
Nature Publishing Group
Subjects
639/166/987
639/301/1005/1007
Circuits
Humanities and Social Sciences
Integration
Memory cells
multidisciplinary
Plastics
Random access memory
Science
Temperature effects
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Summary: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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ISSN:2045-2322
2045-2322
DOI:10.1038/srep13457