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Pyroelectric Nanogenerators for Driving Wireless Sensors
Abstract
We demonstrate a pyroelectric nanogenerator (PENG) based on a lead zirconate titanate (PZT) film, which has a pyroelectric coefficient of about -80 nC/cm(2)K. For a temperature change of 45 K at a rate of 0.2 K/s, the output open-circuit voltage and short-circuit current density of the PENG reached 22 V and 171 nA/cm(2), respectively, corresponding to a maximum power density of 0.215 mW/cm(3). A detailed theory was developed for understanding the high output voltage of PENG. A single electrical output pulse can directly drive a liquid crystal display (LCD) for longer than 60 s. A Li-ion battery was charged by the PENG at different working frequencies, which was used to drive a green light-emitting diode (LED). The demonstrated PENG shows potential applications in wireless sensors.
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Metadata
- Authors
- Yang, Y., Wang, S., Zhang, Y., & Wang, Z. L.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-11-07
- Volume
- 12
- Issue
- 12
- Pages
- 6408-6413
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2312229894
- Cited by
- 267
- References
- 0
- FWCI
- 6.63
- Type
- journal article
- Language
- en
- Open access
- closed
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