Single micro/nanowire pyroelectric nanogenerators as self-powered temperature sensors.
We demonstrated the first application of a pyroelectric nanogenerator as a self-powered sensor (or active sensor) for detecting a change in temperature. The device consists of a single lead zirconate titanate (PZT) micro/nanowire that is placed on a thin glass substrate and bonded at its two ends, and it is packaged by polydimethylsiloxane (PDMS). By using the device to touch a heat source, the output voltage linearly increases with an increasing rate of change in temperature. The response time and reset time of the fabricated sensor are about 0.9 and 3 s, respectively. The minimum detecting limit of the change in temperature is about 0.4 K at room temperature. The sensor can be used to detect the temperature of a finger tip. The electricity generated under a large change in temperature can light up a liquid crystal display (LCD).
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States.
Ya
Y
Yang
Yusheng
Y
Zhou
Jyh Ming
JM
Wu
Zhong Lin
ZL
Wang
D011211:Electric Power Supplies; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006361:Heating / Q000295:instrumentation*; D007854:Lead / Q000737:chemistry*; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation*; D043942:Nanotubes / Q000737:chemistry*; D013817:Thermography / Q000295:instrumentation*; D014025:Titanium / Q000737:chemistry*; D014159:Transducers; D015040:Zirconium / Q000737:chemistry*
C065536:lead titanate zirconate; D007854:Lead; D015040:Zirconium; D014025:Titanium