title: An infrared-driven flexible pyroelectric generator for non-contact energy harvester.
abstract: In recent years, energy harvesting technologies, which can scavenge many kinds of energies from our living environment to power micro/nanodevices, have attracted increasing attention. However, remote energy transmission, flexibility and electric waveform controllability remain the key challenges for wireless power supply by an energy harvester. In this paper, we design a new infrared-driven non-contact pyroelectric generator for harvesting heat energy, which avoids direct contact between the pyroelectric generator and heat source and realizes remote energy transfer exploiting the photothermal and penetrability of infrared light. The output voltage (under the input impedance of 100 MOhm) and short-circuit current of the pyroelectric generator consisting of a CNT/PVDF/CNT layer (20 mm × 5 mm × 100 μm) can be as large as 1.2 V and 9 nA, respectively, under a 1.45 W cm(-2) near-infrared laser (808 nm). We also demonstrate the means by which the pyroelectric generator can modulate square waveforms with controllable periods through irradiation frequency, which is essential for signal sources and medical stimulators. The overshoot of square waveforms are in a range of 9.0%-13.1% with a rise time of 120 ms. The prepared pyroelectric generator can light a liquid crystal display (LCD) in a vacuum chamber from outside. This work paves the way for non-contact energy harvesting for some particular occasions where near-field energy control is not available.
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhao
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Weitao
authors.initials: W
authors.lastname: Jiang
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Hongzhong
authors.initials: H
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Dong
authors.initials: D
authors.lastname: Niu
authors.affiliation: Department of Microelectronics, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Microelectronics, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Weihua
authors.initials: W
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Xuan
authors.initials: X
authors.lastname: Li
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Bangdao
authors.initials: B
authors.lastname: Chen
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Shi
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Lei
authors.initials: L
authors.lastname: Yin
authors.affiliation: State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China. wtjiang@mail.xjtu.edu.cn hzliu@mail.xjtu.edu.cn.
authors.forename: Bingheng
authors.initials: B
authors.lastname: Lu