A nanogenerator for harvesting airflow energy and light energy

Harvesting airflow energy and light energy from the ambient environment to build a self-powered system is attractive and challenging work. In this article, an airflow-induced triboelectric nanogenerator (ATNG) has been fabricated that converts wind energy to alternating electricity. The mechanism of ATNG has also been illustrated. The performance of ATNGs with different sizes was studied, from which we discovered that the ATNG (size: 1 cm × 3 cm, electrode gap: 1.5 mm) could easily collect energy from a gentle wind (5.3 m s−1). Due to the relatively high alternating electricity frequency (179.5–1220.9 Hz), an approximately stable output power (of up to 1.5 mW) was obtained from the ATNG (size: 1 cm × 3 cm, electrode gap: 0.5 mm) with 8.35 μC of charge transferred per second. Meanwhile, the fabricated wind energy harvesting device was used to drive 46 commercial green light-emitting diodes (LEDs) connected in series and charge a 220 μF capacitor to 2.5 V over 50 s. When combined with a dye-sensitized solar cell (DSC), the device can individually and simultaneously harvest wind and light energy. This shows the potential applications of this ATNG in self-powered systems.

[1]  J. A. Malecki,et al.  Linear decay of charge in electrets , 1999 .

[2]  Tsukasa Yoshida,et al.  Room‐Temperature Synthesis of Porous Nanoparticulate TiO2 Films for Flexible Dye‐Sensitized Solar Cells , 2006 .

[3]  Zhong Lin Wang,et al.  Finger typing driven triboelectric nanogenerator and its use for instantaneously lighting up LEDs , 2013 .

[4]  Zhong Lin Wang,et al.  A paper-based nanogenerator as a power source and active sensor , 2013 .

[5]  Bernd Ploss,et al.  Pyroelectric or piezoelectric compensated ferroelectric composites , 2000 .

[6]  Zhong Lin Wang,et al.  Triboelectric nanogenerator for harvesting wind energy and as self-powered wind vector sensor system. , 2013, ACS nano.

[7]  Tsutomu Miyasaka,et al.  Improvement in durability of flexible plastic dye-sensitized solar cell modules , 2009 .

[8]  Long Lin,et al.  Nanoscale triboelectric-effect-enabled energy conversion for sustainably powering portable electronics. , 2012, Nano letters.

[9]  Timothy C. Green,et al.  Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices , 2008, Proceedings of the IEEE.

[10]  Zhong Lin Wang,et al.  Power generation with laterally packaged piezoelectric fine wires. , 2009, Nature nanotechnology.

[11]  Zhong Lin Wang,et al.  Microfibre–nanowire hybrid structure for energy scavenging , 2008, Nature.

[12]  M. Grätzel,et al.  A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films , 1991, Nature.

[13]  Joseph A. Paradiso,et al.  Energy scavenging for mobile and wireless electronics , 2005, IEEE Pervasive Computing.

[14]  Yi Cui,et al.  Transparent and conductive paper from nanocellulose fibers , 2013 .

[15]  Zhong Lin Wang,et al.  Nanotechnology-enabled energy harvesting for self-powered micro-/nanosystems. , 2012, Angewandte Chemie.

[16]  Zhong Lin Wang,et al.  Transparent triboelectric nanogenerators and self-powered pressure sensors based on micropatterned plastic films. , 2012, Nano letters.

[17]  Jian Shi,et al.  PVDF microbelts for harvesting energy from respiration , 2011 .

[18]  S. Beeby,et al.  Energy harvesting vibration sources for microsystems applications , 2006 .

[19]  Zhong Lin Wang,et al.  Direct-Current Nanogenerator Driven by Ultrasonic Waves , 2007, Science.

[20]  G.S.P. Castle,et al.  Contact charging between insulators , 1997 .

[21]  Liang Yan,et al.  Nanogenerator as an active sensor for vortex capture and ambient wind-velocity detection , 2012 .

[22]  Dennis L. Polla,et al.  Experimental studies on primary and secondary pyroelectric effects in Pb(ZrxTi1−x)O3, PbTiO3, and ZnO thin films , 1991 .

[23]  S. Lang.  Pyroelectricity: From Ancient Curiosity to Modern Imaging Tool , 2005 .

[24]  Zhong Lin Wang,et al.  Toward large-scale energy harvesting by a nanoparticle-enhanced triboelectric nanogenerator. , 2013, Nano letters.

[25]  Henry A. Sodano,et al.  A review of power harvesting using piezoelectric materials (2003–2006) , 2007 .

[26]  Zhong Lin Wang,et al.  Flexible triboelectric generator , 2012 .

[27]  Zhong Lin Wang,et al.  Flexible hybrid energy cell for simultaneously harvesting thermal, mechanical, and solar energies. , 2013, ACS nano.

[28]  Caofeng Pan,et al.  Triboelectric-generator-driven pulse electrodeposition for micropatterning. , 2012, Nano letters.

[29]  Yan Zhang,et al.  Hybridizing energy conversion and storage in a mechanical-to-electrochemical process for self-charging power cell. , 2012, Nano letters.

[30]  Zhong Lin Wang,et al.  Piezoelectric-nanowire-enabled power source for driving wireless microelectronics. , 2010, Nature communications.

[31]  Liwei Lin,et al.  Direct-write piezoelectric polymeric nanogenerator with high energy conversion efficiency. , 2010, Nano letters.

[32]  Xudong Wang,et al.  Piezoelectric nanogenerators—Harvesting ambient mechanical energy at the nanometer scale , 2012 .