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

  • Author(s): Ng, Tse;
  • Schwartz, David;
  • Mei, Ping;
  • Krusor, Brent;
  • Kor, Sivkheng;
  • Veres, Janos;
  • Bröms, Per;
  • Eriksson, Torbjörn;
  • Wang, Yong;
  • Hagel, Olle;
  • Karlsson, Christer
  • et al.

Published Web Location

https://doi.org/10.1038/srep13457
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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