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Direct-Current Generator Based on Dynamic Water-Semiconductor Junction with Polarized Water as Moving Dielectric Medium | | Yanghua Lu
; Yanfei Yan
; Xutao Yu
; Xu Zhou
; Sirui Feng
; Chi Xu
; Haonan Zheng
; Zunshan Yang
; Linjun Li
; Kaihui Liu
; Shisheng Lin
; | | Date: |
12 Aug 2020 | | Abstract: | There is a rising prospective in harvesting energy from water droplets, as
microscale energy is required for the distributed sensors in the interconnected
human society. However, achieving a sustainable direct-current generating
device from water flow is rarely reported, and the quantum polarization
principle of the water molecular remains uncovered. Herein, we propose a
dynamic water-semiconductor junction with moving water sandwiched between two
semiconductors as a moving dielectric medium, which outputs a sustainable
direct-current voltage of 0.3 V and current of 0.64 uA with low internal
resistance of 390 kilohm. The sustainable direct-current electricity is
originating from the dynamic water polarization process in water-semiconductor
junction, in which water molecules are continuously polarized and depolarized
driven by the mechanical force and Fermi level difference, during the movement
of the water on silicon. We further demonstrated an encapsulated portable
power-generating device with simple structure and continuous direct-current
voltage, which exhibits its promising potential application in the field of
wearable electronic generators. | | Source: | arXiv, 2008.05433 | | Services: | Forum | Review | PDF | Favorites | |
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