Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 3, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/admt.201700371
Keywords
dye-sensitized solar cells; hybrid energy system; self-powered devices; soft lithium batteries; triboelectric nanogenerators
Categories
Funding
- National Key RAMP
- D Project from Minister of Science and Technology [2016YFA0202702, 2016YFA0202703, 2016YFA0202704]
- National Natural Science Foundation of China (NSFC) [21703010, 21274006, 51503005]
- Programs for Beijing Science and Technology Leading Talent [Z16111000490000]
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The solar cell is widely used to convert sunlight into electric energy. However, its ability in harvesting energy is limited because it exclusively depends on sunlight. Inspired by a lantern swaying in the wind, triboelectric nanogenerator (TENG) is introduced to fabricate a triboelectric-photovoltaic hybrid nanogenerator, which is capable of harvesting both wind and solar energy with high efficiency. Moreover, a soft lithium battery (SLB) with designable shape and high capacity is adapted to instantly store the electric energy and guarantee stable output for the light-emitting diodes inside the lantern. The hybrid nanogenerator exhibits high performance with a short-circuit current about 150 mu A at the rotation speed of 200 rpm and light intensity of 2 mW, illustrating the additive effect of the TENG and dye-sensitized solar cells (DSSCs). Besides, after being charged by the hybrid nanogenerator for 0.88 h, the following discharge of the SLB at 10 mu A can last 4.12 h, which is much longer compared with each component. The high integration of the TENG, DSSC, and SLB successfully makes a self-powered lantern reality, which is a further step for multiple energy harvesting and self-powered systems.
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