Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures
Thick-film piezoelectric free-standing structures fabricated with a combination of conventional thick-film technology and a sacrificial layer technique are presented. The structures were fabricated in the form of composite cantilevers, consisting of lead zirconate titanate (PZT) as the functional el...
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my.utem.eprints.43782015-05-28T02:41:32Z http://eprints.utem.edu.my/id/eprint/4378/ Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures White, Neil Harris, Nick Kok, Swee Leong Tudor, John TK Electrical engineering. Electronics Nuclear engineering Thick-film piezoelectric free-standing structures fabricated with a combination of conventional thick-film technology and a sacrificial layer technique are presented. The structures were fabricated in the form of composite cantilevers, consisting of lead zirconate titanate (PZT) as the functional element and silver/palladium (Ag/Pd) as the electrodes. The cantilevers are free standing above a substrate and are able to operate at low levels of vibration suitable for harvesting energy from the environment. An open circuit output voltage of 130 mV was measured from a sample of length 18 mm, width 9 mm and PZT thickness of 80 μm. The sample was found to produce a maximum output electrical power of 10 nW at its resonant frequency of 237.5 Hz and acceleration level of 0.981 m/s2 when driving a 60 kΩ resistive load. The output power was found to increase exponentially with acceleration. At an acceleration of 9.81 ms-2, 270 nW of power was produced. The output power can be improved by attaching a proof mass at the tip of the cantilever beam. A beam having a proof mass of 1.14 g, resulted in an eight-fold improvement of output power compared to a device with no added proof mass at the same acceleration level of 0.98 ms-2. 2008 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utem.edu.my/id/eprint/4378/1/p64.pdf White, Neil and Harris, Nick and Kok, Swee Leong and Tudor, John (2008) Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures. In: 2nd Electronics System-Integration Technology, 1 - 4 September 2008, Greenwich, London.. http://ieeexplore.ieee.org/xpls/abs_all.jsp?tp=&arnumber=4684416 |
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TK Electrical engineering. Electronics Nuclear engineering White, Neil Harris, Nick Kok, Swee Leong Tudor, John Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures |
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Thick-film piezoelectric free-standing structures fabricated with a combination of conventional thick-film technology and a sacrificial layer technique are presented. The structures were fabricated in the form of composite cantilevers, consisting of lead zirconate titanate (PZT) as the functional element and silver/palladium (Ag/Pd) as the electrodes. The cantilevers are free standing above a substrate and are able to operate at low levels of vibration suitable for harvesting energy from the environment. An open circuit output voltage of 130 mV was measured from a sample of length 18 mm, width 9 mm and PZT thickness of 80 μm. The sample was found to produce a maximum output electrical power of 10 nW at its resonant frequency of 237.5 Hz and acceleration level of 0.981 m/s2 when driving a 60 kΩ resistive load. The output power was found to increase exponentially with acceleration. At an acceleration of 9.81 ms-2, 270 nW of power was produced. The output power can be improved by attaching a proof mass at the tip of the cantilever beam. A beam having a proof mass of 1.14 g, resulted in an eight-fold improvement of output power compared to a device with no added proof mass at the same acceleration level of 0.98 ms-2. |
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Conference or Workshop Item |
author |
White, Neil Harris, Nick Kok, Swee Leong Tudor, John |
author_facet |
White, Neil Harris, Nick Kok, Swee Leong Tudor, John |
author_sort |
White, Neil |
title |
Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures |
title_short |
Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures |
title_full |
Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures |
title_fullStr |
Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures |
title_full_unstemmed |
Novel Thick-Film Piezoceramic Micro-Generator Based on Free-Standing Structures |
title_sort |
novel thick-film piezoceramic micro-generator based on free-standing structures |
publishDate |
2008 |
url |
http://eprints.utem.edu.my/id/eprint/4378/1/p64.pdf http://eprints.utem.edu.my/id/eprint/4378/ http://ieeexplore.ieee.org/xpls/abs_all.jsp?tp=&arnumber=4684416 |
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