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Development of a Sustainable and Biodegradable Sonchus asper Cotton Pappus Based Piezoelectric Nanogenerator for Instrument Vibration and Human Body Motion Sensing with Mechanical Energy Harvesting Applications
ACS Omega ( IF 3.7 ) Pub Date : 2021-10-25 , DOI: 10.1021/acsomega.1c03374
Debmalya Sarkar 1 , Namrata Das 1 , Md Minarul Saikh 1, 2 , Prosenjit Biswas 3 , Solanky Das 1 , Sukhen Das 1 , Nur Amin Hoque 4, 5 , Ruma Basu 6
Affiliation  

Energy harvesting from natural resources has gained much attention due to the huge increase in the demand for portable electronic devices and the shortage of conventional energy resources in general. In the present work, the fabrication and realistic applications of a piezoelectric nanogenerator (PENG) using polydimethylsiloxane (PDMS) and the abundantly available, environment-friendly natural fiber Sonchus asper (SA) have been discussed. The biocompatible, low-cost SA fibers were flexible enough and showed high piezoelectric properties as active materials in the study. The SA pappus based piezoelectric nanogenerator demonstrated its ability to convert the harvested biomechanical energy into electrical energy from the various mechanical energy sources available in our environment. The SA pappus/PDMS thin film based piezoelectric nanogenerator (SPENG) fabricated in the laboratory showed colossal output performances (open circuit output voltage, VOC ∼81.2 V; short circuit current, ISC ∼1.0 μA) by continuous finger impartation. Uniform output performance was also obtained by the application of uniform force on the devices (e.g., ∼42 V for 5 N force at 10 Hz frequency). The SPENG was capable to charge a 2.2 μF capacitor to 3.2 V within a short time span (16 s) under continuous finger impartation and illuminate 39 commercial high-power blue LEDs that were connected in series. Thus, the fabricated SPENG can be used as a green and portable energy source to power up portable electronic devices. Apart from this, the SPENG may also be used as a self-powered energy supply for pacemakers or different types of health care units if properly improvised.

中文翻译:

开发一种可持续的、可生物降解的基于棉花树冠的 Sonchus asper 压电纳米发电机,用于仪器振动和具有机械能量收集应用的人体运动传感

由于便携式电子设备需求的大幅增加和常规能源的普遍短缺,从自然资源中获取能量受到了广泛关注。在目前的工作中,使用聚二甲基硅氧烷 (PDMS) 和大量可用的、环境友好的天然纤维Sonchus asper制造压电纳米发电机 (PENG) 和实际应用。(SA) 进行了讨论。生物相容性、低成本的 SA 纤维足够柔韧,并在研究中作为活性材料显示出高压特性。基于 SA pappus 的压电纳米发电机展示了其将收集到的生物机械能转化为电能的能力,这些能量来自我们环境中可用的各种机械能源。实验室制造的基于SA pappus / PDMS薄膜的压电纳米发电机(SPENG)显示出巨大的输出性能(开路输出电压,V OC ∼81.2 V;短路电流,I SC∼1.0 μA) 通过连续手指传递。通过在器件上施加均匀的力也可以获得均匀的输出性能(例如,在 10 Hz 频率下,对于 5 N 力,~42 V)。SPENG 能够在连续手指施加的情况下在短时间跨度(16 秒)内将 2.2 μF 电容器充电至 3.2 V,并照亮 39 个串联的商用高功率蓝色 LED。因此,制造的 SPENG 可用作绿色便携式能源,为便携式电子设备供电。除此之外,如果适当地临时使用,SPENG 还可以用作起搏器或不同类型的医疗保健单位的自供电能源。
更新日期:2021-11-02
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