摘要
There is a rising prospective in harvesting energy from the environment,as in situ energy is required for the distributed sensors in the interconnected information society,among which the water flow energy is the most potential candidate as a clean and abundant mechanical source.However,for microscale and unordered movement of water,achieving a sustainable direct-current generating device with high output to drive the load element is still challenging,which requires for further exploration.Herein,we propose a dynamic PN water junction generator with moving water sandwiched between two semiconductors,which outputs a sustainable direct-current voltage of 0.3 V and a current of 0.64μA.The mechanism can be attributed to the dynamic polarization process of water as moving dielectric medium in the dynamic PN water junction,under the Fermi level difference of two semiconductors.We further demonstrate an encapsulated portable power-generating device with simple structure and continuous direct-current voltage output of 0.11 V,which exhibits its promising potential application in the field of wearable devices and the IoTs.
出处
《Research》
SCIE
EI
CAS
CSCD
2021年第1期469-478,共10页
研究（英文）
基金
S.S.Lin thanks the support from the National Natural Science Foundation of China(No.51202216,51502264,61774135)
K.H.Liu thanks the support from the Beijing Natural Science Foundation(JQ19004)
Beijing Excellent Talents Training Support(2017000026833ZK11)
Bureau of Industry and Information Technology of Shenzhen(No.201901161512)
Key-Area Research and Development Program of Guangdong Province(Grant Nos.2019B010931001,2020B010189001)
Project funded by the China Postdoctoral Science Foundation(2019M660001)
Postdoctoral Innovative Personnel Support Program(BX20180013).
