Current Projects

PTDC/EEA-ENE/66855/2006, “Thermoelectric energy scavenging microsystem”, supported by Fundação para a Ciência e a Tecnologia, started 1st September 2007 finished on 31 December 2010.

Introduction

This project purposes a new global approach for power generation, by associating a Seebeck thermo generator with thin-film integrated batteries used
as energy reservoir in an ultra-low consumption power management device.
The expected original contributions are:
• The fabrication of thermoelectric microgenerators in a reproducible way with standard microsystem technologies.
• The use co-deposition of the tellurides avoiding more complex and expensive systems (MOCVD).
• To achieve power density with a temperature gradient of 3-10 ºC.
• Require a minimum temperature gradient of 3 ºC for powering wireless sensors.
• The integration of thermoelectric microgenerators, microelectronics and solid-state battery in the same device.
• To use on-chip rechargeable thin-film Li-ion battery and DC-DC converter.
• Use Bi2Te3 and Sb2Te3 materials for thermoelectric energy harvesting rather than for conventional Peltier cooling.

Publications

Journal Publications:

38. L. M. Goncalves, C Couto, P Alpuim, J H Correia, Thermoelectric micro converters for cooling and energy-scavenging systems, Journal Micromechanics and Microengineering, IOP, pp.1-5, full paper in Acrobat PDF, Vol. 18, Nº6, June 2008.

39. L. M. Goncalves, J G Rocha, C Couto, P Alpuim, J H Correia, On-Chip Array of Thermoelectric Peltier Microcoolers, Journal Sensors and Actuators A, Vol.145-146, pp. 75-80, full paper in Acrobat PDF, August 2008, Elsevier Science 2008.

40. L. M. Gonçalves, C. Couto, J. H. Correia, Optimization of Bi2Te3 and Sb2Te3 thin films deposited by co-evaporation on polyimide for thermoelectric applications, Vaccum, vol. 82, pp.1499-1502, full paper in Acrobat PDF, Elsevier Science August 2008.

41. J.P. Carmo, L.M. Goncalves, and J.H. Correia, "Improved p- and n-type thin-film microstructures for thermoelectricity", Electronic Letters, Vol. 45, No. 15, pp. 803-805, IP=1.140., full paper in Acrobat PDF, July 2009.

42. J. P. Carmo, R. P. Rocha, A. F. Silva, L. M. Goncalves, J. H. Correia"A thin-film rechargeable battery for integration in stand-alone microsystems", in Procedia Chemistry, 2009, Elsevier Science, pp. 453-456. Full paper in Adobe PDF, September 2009.

44. J. P. Carmo, L. M. Goncalves and J. H. Correia, "Thermoelectric Microconverter for Energy Harvesting Systems", IEEE Transactions on Industrial Electronics, Vol. 57, No. 3, PP. 861-867, IF = 5.468. Full paper in Adobe PDF, March 2010.

45. Optimization of thermoelectric properties on Bi₂Te₃ thin films deposited by thermal co-evaporation, L.M. Goncalves, C. Couto, P. Alpuim, A.G. Rolo, F. Völklein, J.H. Correia, Thin Solid Films, Volume 518, Issue 10, March 2010, PP. 2816-2821, IF=1.884 Full paper in Adobe PDF, March 2010.

51. J. P. Carmo, L. M. Goncalves, R. F. Wolffenbuttel, and J. H. Correia, "A planar thermoelectric power generator for integration in wearable microsystems", Sensors and Actuators A: Physical, Elsevier, IF=1.70, Vol. 161, Issues 1-2, June 2010, pp. 199-204. Full paper in Adobe PDF, June 2010.

52. J P Carmo, J F Ribeiro, M F Silva, L M Goncalves and J H Correia, "Thermoelectric generator and solid-state battery for stand-alone microsystems", Journal of Micromechanics and Microengineering: Institute of Physics (IOP) Publishing, Vol. 20, No. 8, pp. 1-8, IF=1.997, Full paper in Adobe PDF, August 2010.

Conference Publications:

107. L.M. Goncalves, A. Ferreira da Silva, H.R. Silva, Rui Rocha, C. Couto, P. Alpuim, J.H. Correia, Thermoelectric micro converters for cooling and energy scavenging, Proceedings of the XVIII Conference MicroMechanicsEurope (MME), full paper in Acrobat PDF, Guimaraes, Portugal, pp. 391-394, September 16-18, 2007.

114. L.M. Goncalves, H.R. Silva, Rui Rocha, P. Alpuim, J.H. Correia, Thermoelectric thin-films for microcoolers and energy scavenging microsystems, Proceedings of NanoSpain2008, full paper in Acrobat PDF, Braga, Portugal, pp. 1-2, April 14-18, 2008.

117. L.M. Goncalves, Rui Rocha, A F. Silva, J. P. Carmo, P. Alpuim, J.H. Correia, A human-body thermoelectric energy scavenging microsystem, Proceedings of MME 2008, full paper in Acrobat PDF, Aachen, Germany, pp. 49-52, September 28-30, 2008.

123. J. P. Carmo, J. H. Correia, "A wireless EEG acquisition system with thermoelectrics scavenging microdevice", full paper in Acrobat PDF, pp.380-383, Proc. Biodevices 2009, Porto, Portugal, 14-17 January 2009.

125. J. P. Carmo, R. P. Rocha, A. F. Silva, L. M. Goncalves, J. H. Correia, "Integrated thin-film rechargeable battery in a thermoelectric scavenging microsystem", in Proc. Powereng 2009, Lisbon, Portugal, full paper in Acrobat PDF, pp. 359-363, 18-20 March, 2009.

127. J. P. Carmo, R. P. Rocha, A. F. Silva, L. M. Goncalves, J. H. Correia, "Sputtered SnO2 for application in thin-film solid state microbatteries", in Proc. Materiais 2009, Lisbon, Portugal, 5-8 April, 2009, pp. 1-5. Full paper in Adobe PDF.

143. J. P. Carmo, R. P. Rocha, A. F. Silva, L. M. Goncalves, J. H. Correia"A thin-film rechargeable battery for integration in stand-alone microsystems", in Proc. Eurosensors 2009, Lausanne, Switzerland, 6-9 September 2009, pp. 453-456. Full paper in Adobe PDF.

149. J. P. Carmo, R. P. Rocha, L. M. Goncalves, J. H. Correia, High-resolution miniaturized stereoscopic image sensor in CMOS technology for endoscopic capsules with integrated battery, Proceedings of MME 2009, full paper in Acrobat PDF, Toulouse, France, pp. A23(1-4), September 20-22, 2009.

156. L.M. Goncalves , R. P. Rocha, J.P. Carmo, J.H. Correia, Solid-State Microcoolers and Thermal Energy Harvesting Microsystems, Proceedings of IECON 2009, full paper in Acrobat PDF, Porto, Portugal, pp. 4076-4080, November 2-5, 2009.

158. R. P. Rocha, J. P. Carmo, L. M. Goncalves, J. H. Correia, An energy scavenging microsystem based on thermoelectricity for battery life extension in laptops, Proceedings of IECON 2009, full paper in Acrobat PDF, Porto, Portugal, pp. 1827-1830, November 2-5, 2009.

164. L. M. Goncalves, J.H. Correia "Batteries", in Proc. Eurosensors 2010, full paper in Acrobat PDF, Linz, Austria, September 2010.

165. J. F. Ribeiro, M. F. Silva, L. M. Goncalves, M. M. Silva, J. H. Correia, "Microfabrication and characterization of thin-films solid-state rechargeable lithium battery”, Proc. of MME 2010, pp.253-256, Enschede, The Netherlands, full paper in Acrobat PDF, 26-29 September 2010.

168. J. F. Ribeiro, M. F. Silva, L. C. Rodrigues, L. M. Goncalves, M. M. Silva, J. H. Correia, “LIPON as Electrolyte in Solid-State Film Batteries”, Proc. of ISE- International Society of Electrochemistry, Nice, França, full paper in Acrobat PDF, full paper in Acrobat PDF, September 2010.

169. J. F. Ribeiro, M. F. Silva, L. C. Rodrigues, L. M. Goncalves, M. M. Silva, J. H. Correia, “Improvement of LIPON Ionic Conductivity to apply as Electrolyte in Solid-Stat Film Batteries”, Proc. of MPA 2010 - International Meeting on Developments in Materials, Processes and Applications of Emerging Technologies, pp.161, Braga, Portugal, full paper in Acrobat PDF, 28-30 July 2010.

LIVROS

“Introdução às Microtecnologias no Silício”, J. P. Carmo, J. H. Correia, published in September 2010, 216 pages, ISBN:978-972-757-716-3 , LIDEL 2010.

CAPÍTULOS DE LIVROS

J.P. Carmo, L.M. Goncalves, and J.H. Correia, "Micro and Nanodevices for Thermoelectric Converters", pp. 789-810. Chapter 25 of the book Scanning Probe Microscopy in Nanoscience and Nanotechnology 2, Springer, Edited by Bharat Bhushan, January 2011, ISBN 978-3-642-10496-1, full chapter in Acrobat PDF.

TESES DOUTORAMENTO

Luís M. Gonçalves. Doutoramento em Eng. Electrónica e Computadores.

"Microssistema Termoeléctrico Baseado em Teluretos de Bismuto e Antimónio”

Terminado Julho 2008.

TESES MESTRADO

Carlos Manuel Mota Marques, Mestrado Integrado de Electrónica Industrial e Computadores,

"Parametrização e meshing automático em CAD baseado em elementos finitos"

Terminado em Julho 2008.

Rui Pedro Leitão da Silva da Rocha, Mestrado Integrado de Electrónica Industrial e Computadores,

"Simulação dinâmica do encapsulamento de microchips"

Terminado em Outubro 2008.

João Pedro Lamas Rodrigues, Mestrado Integrado de Electrónica Industrial e Computadores

“Conversores de elevação de tensão em microssistemas termoeléctricos de geração de energia para sensores sem fios” Terminado em Dezembro de 2009.

João Filipe Rodrigues Ribeiro, Mestrado Integrado de Electrónica Industrial e Computadores

“Deposição e caracterização de filmes finos para baterias de lítio em estado sólido”,

Terminado em Novembro 2010.

Manuel Fernando Ribeiro da Silva, Mestrado em Micro/Nanotecnologias,

“Filmes finos para aplicações termoeléctricas”,

Terminado em Novembro 2010.

ORGANIZAÇÃO DE SEMINÀRIOS E CONFERÊNCIAS

International Conference MicroMechanicsEurope (MME), Guimaraes, Portugal, September 16-18, 2007.

EQUIPA

Luís Gonçalves (DEI)
Pedro Alpuim (DF)
João Paulo Carmo (DEI)
Luis Rocha (DEI)
José Afonso (DEI)
Carlos Alberto Caridade Monteiro Couto (DEI)
José Higino Gomes Correia (DEI)

Manuel Silva (DEI)
João Ribeiro (DF)
Hélder Silva (DEI)
Rui Rocha (DEI)

Patrocínio:

União Europeia — Fundo Europeu de

Desenvolvimento Regional

Governo da República Portuguesa