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      Progress in triboelectric nanogenerators as a new energy technology and self-powered sensors

      Author(s): , ,
      Publication date (Print):
      Journal: Energy Environ. Sci.
      Publisher: Royal Society of Chemistry (RSC)

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          Abstract

          A review on the principles, novel applications and perspectives of triboelectric nanogenerators as power sources and as self-powered sensors.

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          Transparent triboelectric nanogenerators and self-powered pressure sensors based on micropatterned plastic films.

          Feng-Ru Fan, Long Lin, Han-guang Zhu … (2012)
          Transparent, flexible and high efficient power sources are important components of organic electronic and optoelectronic devices. In this work, based on the principle of the previously demonstrated triboelectric generator, we demonstrate a new high-output, flexible and transparent nanogenerator by using transparent polymer materials. We have fabricated three types of regular and uniform polymer patterned arrays (line, cube, and pyramid) to improve the efficiency of the nanogenerator. The power generation of the pyramid-featured device far surpassed that exhibited by the unstructured films and gave an output voltage of up to 18 V at a current density of ∼0.13 μA/cm(2). Furthermore, the as-prepared nanogenerator can be applied as a self-powered pressure sensor for sensing a water droplet (8 mg, ∼3.6 Pa in contact pressure) and a falling feather (20 mg, ∼0.4 Pa in contact pressure) with a low-end detection limit of ∼13 mPa.
          Article 0 comments Cited 461 times – based on 0 reviews     Review now
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            Direct-current nanogenerator driven by ultrasonic waves.

            X. Wang, J. Song, J. Liu … (2007)
            We have developed a nanowire nanogenerator that is driven by an ultrasonic wave to produce continuous direct-current output. The nanogenerator was fabricated with vertically aligned zinc oxide nanowire arrays that were placed beneath a zigzag metal electrode with a small gap. The wave drives the electrode up and down to bend and/or vibrate the nanowires. A piezoelectric-semiconducting coupling process converts mechanical energy into electricity. The zigzag electrode acts as an array of parallel integrated metal tips that simultaneously and continuously create, collect, and output electricity from all of the nanowires. The approach presents an adaptable, mobile, and cost-effective technology for harvesting energy from the environment, and it offers a potential solution for powering nanodevices and nanosystems.
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              Self-powered nanowire devices.

              Sheng Xu, Yong Qin, Chen Xu … (2010)
              The harvesting of mechanical energy from ambient sources could power electrical devices without the need for batteries. However, although the efficiency and durability of harvesting materials such as piezoelectric nanowires have steadily improved, the voltage and power produced by a single nanowire are insufficient for real devices. The integration of large numbers of nanowire energy harvesters into a single power source is therefore necessary, requiring alignment of the nanowires as well as synchronization of their charging and discharging processes. Here, we demonstrate the vertical and lateral integration of ZnO nanowires into arrays that are capable of producing sufficient power to operate real devices. A lateral integration of 700 rows of ZnO nanowires produces a peak voltage of 1.26 V at a low strain of 0.19%, which is potentially sufficient to recharge an AA battery. In a separate device, a vertical integration of three layers of ZnO nanowire arrays produces a peak power density of 2.7 mW cm(-3). We use the vertically integrated nanogenerator to power a nanowire pH sensor and a nanowire UV sensor, thus demonstrating a self-powered system composed entirely of nanowires.
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                Author and article information

                Journal
                Journal ID (publisher-id): EESNBY
                Title: Energy Environ. Sci.
                Abbreviated Title: Energy Environ. Sci.
                Publisher: Royal Society of Chemistry (RSC)
                ISSN (Print): 1754-5692
                ISSN (Electronic): 1754-5706
                Publication date Created: 2015
                Publication date (Print): 2015
                Volume: 8
                Issue: 8
                Pages: 2250-2282
                Article
                DOI: 10.1039/C5EE01532D
                SO-VID: 8ff69224-1649-43aa-a548-a802eb719ff4
                Copyright statement: © 2015
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                Self URI (article page): http://xlink.rsc.org/?DOI=C5EE01532D

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