Journal
NANO ENERGY
Volume 55, Issue -, Pages 534-540Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2018.11.020
Keywords
Pyroelectric nanogenerators; Figure-of-merits; Heat energy; Charge-voltage cycle
Categories
Funding
- National Key R&D Program of China [2016YFA0202701]
- National Natural Science Foundation of China [61604012, 51472055, 61404034]
- External Cooperation Program of BIC, Chinese Academy of Sciences [121411KYS820150028]
- Annual Beijing Talents Fund [2015000021223ZK32]
- Qingdao National Laboratory for Marine Science and Technology [2017ASKJ01]
- Shenzhen Peacock Plan [KQTD2015071616442225]
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Pyroelectric nanogenerators have emerged as an effective approach for the energy of the new-era, the era of internet of things, with a great potential for harvesting waste heat energy. Here, we present the figure-of-merit for quantifying the output of a pyroelectric nanogenertor. The charge-voltage cycle during temperature cycling has been experimentally performed on a PVDF film and PZT ceramic material. Output energy of 2.53 mu J per cycle and 2.59 mJ per cycle is presented at temperature cycling of 23 K (from 300 to 323 K) and 8 K (from 300 to 308 K) for the PVDF and PZT, respectively. The practicability of the derived figure-of-merit as a universal standard for pyroelectric nanogenerator is further experimentally confirmed and compared with previous results. We believe that it could be useful for optimizing the performance of pyroelectric nanogenerators from both material and structural aspects as well as estimating the generated electricity based on maximum temperature cycling.
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