title: Printed dose-recording tag based on organic complementary circuits and ferroelectric nonvolatile memories.
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.
authors: Palo Alto Research Center, Palo Alto, CA 94304, USA.
authors: Tse Nga
authors: TN
authors: Ng
authors: Palo Alto Research Center, Palo Alto, CA 94304, USA.
authors: David E
authors: DE
authors: Schwartz
authors: Palo Alto Research Center, Palo Alto, CA 94304, USA.
authors: Ping
authors: P
authors: Mei
authors: Palo Alto Research Center, Palo Alto, CA 94304, USA.
authors: Brent
authors: B
authors: Krusor
authors: Palo Alto Research Center, Palo Alto, CA 94304, USA.
authors: Sivkheng
authors: S
authors: Kor
authors: Palo Alto Research Center, Palo Alto, CA 94304, USA.
authors: Janos
authors: J
authors: Veres
authors: Thin Film Electronics AB, Linköping, Sweden.
authors: Per
authors: P
authors: Bröms
authors: Thin Film Electronics AB, Linköping, Sweden.
authors: Torbjörn
authors: T
authors: Eriksson
authors: Thin Film Electronics AB, Linköping, Sweden.
authors: Yong
authors: Y
authors: Wang
authors: Thin Film Electronics AB, Linköping, Sweden.
authors: Olle
authors: O
authors: Hagel
authors: Thin Film Electronics AB, Linköping, Sweden.
authors: Christer
authors: C
authors: Karlsson