A 2×1 array of wearable piezoelectric energy harvesters with in-pixel rectifiers based on piezoelectric-charge-gated thin-film transistors
2017
A system level approach of a wearable rectified harvester array formed by integrating PVDF films and piezoelectric-charge-gated thin-film transistors (PCGTFTs) was addressed. Output power of the array upon various gratis non-stop daily trusts and body movements has been conducted. A peak power of a few μW from gentle finger bending is achieved. The analysis of voltage waveforms in response to both resistive and capacitive loads unveils that such an array is capable of quickly charging the capacitor and discharging it slowly allowing for possible energy storage. The estimation on power generation by the harvesting array and survey on power requirements for wearable electronic devices exhibit its feasibility for wearable electronics.
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