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Publications for amvallera
(86)
2020
Armazenamento de Energia em Portugal, Relatório Final do Contrato ADENE-CPR-2020-001 entre a Universidade de Lisboa e a ADENE.
(2020)
Ferrão P. et al., with 11 authors including:
Maia Alves J.
Brito M. C.
Vallêra A.
Graça G. C.
Panão M.
Silva J. M.
Other
2020
Estudo de técnicas de preparação de contactos seletivos para células solares de muito alta eficiência usando compostos metálicos transparentes
(2020)
Bruno Gama Mota
João Manuel de Almeida Serra
António Manuel Barros Gomes de Vallera
Academic documents
2019
Luminescence in Photovoltaics
(2019)
José Almeida Silva
João Manuel Serra
António Manuel Vallêra
Killian Lobato
Book chapters
2018
Silicon on Dust Substrate: The Effect of Powder Size on Ribbon Production
(2018)
Filipe C. Serra
José A. Silva
João M. Serra
António M. Vallêra
Journal articles
2018
Thermal Stress Minimization in Silicon Ribbon Growth Processes by Thermal Gradients Modulation with 808 nm Laser Scanning
(2018)
D. M. Pera
M. C. Brito
A. M. Vallêra
J. M. Serra
J. M. Alves
Conference papers
2017
CVD silicon film growth on powder substrates using an inline optical system
(2017)
Filipe C. Serra
José A. Silva
António M. Vallera
João M. Serra
Journal articles
2017
Progress and challenges for cost effective kerfless Silicon crystal growth for PV application
(2017)
J.M. Serra
J. Maia Alves
A.M. Vallera
Journal articles
2016
Optimization of hybrid renewable energy systems on isolated microgrids: a smart-grid approach
(2016)
Neves, Diana Pereira
Vallêra, António
Silva, Carlos Augusto Santos
Academic documents
2015
Autoconsumo e abandono da rede em Portugal
(2015)
Vítor Manuel Fernandes Alves Neiva da Cruz
António Manuel Vallêra
Academic documents
2015
Inline optical cvd for silicon deposition at low temperature and atmospheric pressure
(2015)
Augusto A
Serra F
Alves JM
Vallêra AM
Serra JM
Conference papers
2015
Crystallization in the SDS process: tests on single crystalline silicon wafers
(2015)
J.M. Pó et al., with 8 authors including:
J.M. Alves
A.M. Vallêra
J.M. Serra
Conference papers
2014
Sprayed phosphoric acid as dopant source for n-type silicon ribbons
(2014)
A.J. Silva et al., with 7 authors including:
J.M. Alves
A.M. Vallêra
Conference papers
2014
Dislocation density in silicon sheets crystalized from a linear molten zone
(2014)
J.M. Pó
D.M. Pera
M.C. Brito
J.M. Alves
A.M. Vallêra
Conference papers
2014
Silicon thin film deposition over laser textured, crystalline and sintered silicon substrates, using a continuous mode cvd system at low temperature
(2014)
Serra F
Augusto A
Vallera AM
Serra JM
Conference papers
2013
Measurement of the dopant concentration in a semiconductor using the Seebeck effect
(2013)
J M Pó et al., with 6 authors including:
J M Pó
M C Brito
J Maia Alves
J A Silva
J M Serra
A M Vallêra
Journal articles
2013
Electric molten zone crystallization of silicon wafers
(2013)
I Costa et al., with 6 authors including:
M C Brito
G Gaspar
J M Serra
J Maia Alves
A Vallêra
Journal articles
2013
Residual stress and dislocations density in silicon ribbons grown via optical zone melting
(2013)
A. Augusto et al., with 9 authors including:
M. C. Brito
J. Maia Alves
A. M. Vallêra
J. M. Serra
Journal articles
2013
New silicon ribbons growth method by linear electric molten zone stimulated by laser
(2013)
Pera DM et al., with 6 authors including:
Maia Alves J
Vallêra AM
Conference papers
2013
Linear electric molten zone stimulated by laser for silicon ribbons growth
(2013)
Pera D
Brito MC
Maia Alves J
Serra JM
Vallera AM
Conference papers
2012
Progress in electric molten zone crystallization for photovoltaic application
(2012)
Costa I et al., with 6 authors including:
Alves JM
Vallera AM
Conference papers
2012
Experimental characterization of a linear electric molten zone in silicon
(2012)
Costa I.
Brito M.C.
Serra J.M.
Alves J.M.
Vallera A..
Journal articles
2011
Silicon ribbon technologies based on the SDS process
(2011)
A. Augusto
M.C.Brito
J. Maia Alves
J.M. Serra
A.M.Vallêra
Conference papers
2011
First multicrystalline silicon ribbons using the continuous SDS process
(2011)
A. Augusto
J.M.Serra
A.M. Vallêra
Conference papers
2011
Electrically generated molten capillary for crystallization of silicon sheet
(2011)
I. Costa et al., with 6 authors including:
M.C. Brito
J. Maia Alves
A. M. Vallera
Conference papers
2011
Understanding the sprayed boric acid method for bulk doping of silicon ribbons
(2011)
J. A. Silva et al., with 6 authors including:
J. A. Silva
M. C. Brito
J. Maia Alves
J. Serra
A. M. Vallêra
Journal articles
2011
Recrystallization of silicon polygonal tubes using an electric closed molten zone
(2011)
R. M Gamboa
M.C Brito
J. Maia Alves
J.M Serra
A.M Vallêra
Journal articles
2010
Progress on the continuous optical fast CVD system to grow silicon ribbons for solar cells via SDS process
(2010)
A. Augusto
J. Serra
A.M. Vallêra
Conference papers
2010
Electric molten zone in silicon materials for PV application
(2010)
M. C. Brito
I. Costa
J. Maia Alves
J. Serra
A.M. Vallêra
Conference papers
2010
First solar cells on silicon wafers doped using sprayed boric acid
(2010)
J A Silva et al., with 6 authors including:
Miguel C Brito
Jorge Maia Alves
António Vallêra
Journal articles
2009
The silicon on dust substrate path to make solar cells directly from a gaseous feedstock
(2009)
J M Serra et al., with 6 authors including:
J M Serra
M C Brito
J Maia Alves
A M Vallêra
Journal articles
2009
Inline fast CVD System for continuous production of silicon ribbons for solar cells by the SDS process
(2009)
Pera D. et al., with 6 authors including:
Maia Alves J.
Brito M.C.
Serra, J. M.
Vallêra, A. M.
Conference papers
2009
Photovoltaic power plants in urban areas in Portugal: a feasibility study
(2009)
A. Augusto
G. Carrilho da Graça
J. M. Serra
A. M. Vallêra
Conference papers
2009
Segregation of impurities in floating molten zone silicon ribbon processes
(2009)
M. C. Brito
I. Costa
J. Maia Alves
J. Serra
A.M. Vallêra
Conference papers
2009
Modeling a linear electric molten zone in a silicon ribbon
(2009)
Miguel C. Brito et al., with 6 authors including:
Miguel C. Brito
J. Maia Alves
João M. Serra
A. M. Vallêra
Journal articles
2009
Photovoltaic power plants in urban areas in Portugal: a feasibility study
(2009)
A. Augusto
G. Carrilho da Graça
J. M. Serra
A. M. Vallêra
Conference papers
2009
Multicrystalline Silicon wafers prepared by sintering of silicon bed powders and re-crystallization using ZMR
(2009)
Bellanger, P. et al., with 9 authors including:
Vallera, A. M.
Conference papers
2009
Evaluation of the implementation of PV feed-in law in Portugal
(2009)
M.C. Brito
J.M. Serra
J. Maia Alves
K. Lobato
A. Vallêra
Conference papers
2008
Reliability of microwave photoconductivity lifetime measurements
(2008)
D. Pera
J.M. Serra
M.C. Brito
J. Maia Alves
A.M. Vallêra
Conference papers
2008
Solar Cells on Silicon Ribbons Doped With Sprayed Boric Acid as a Doping Source
(2008)
J. A. Silva et al., with 8 authors including:
J. A. Silva
J. Maia Alves
A. M. Vallêra
Conference papers
2008
The SDS process for silicon ribbon growth
(2008)
J.M. Serra et al., with 6 authors including:
M.C.Brito
J.M. Alves
Vallêra, A. M.
Conference papers
2008
Development of a Training Course on PV Systems Installation
(2008)
M.C.Brito et al., with 7 authors including:
J.M. Alves
A.M. Vallera
Conference papers
2008
Sustainable Energy Systems Studies at the University of Lisbon
(2008)
J.M. Alves
M.C.Brito
J.M. Serra
A.M.Vallera
Conference papers
2007
Sprayed boric acid as a dopant source for silicon ribbons
(2007)
J.A. Silva et al., with 6 authors including:
M.C. Brito
J. Maia Alves
J.M. Serra
A.M. Vallêra
Journal articles
2007
First solar cells on silicon ribbons obtained by fast CVD from silane
(2007)
Pinto C. R. et al., with 6 authors including:
Serra J. M.
Maia Alves J.
Vallêra A. M.
Conference papers
2007
Linear electric molten zone in semiconductors
(2007)
António M. Vallêra
Jorge Maia Alves
João M. Serra
Miguel C. Brito
Roberto M. Gamboa
Journal articles
2006
RBS and XRD analysis of SiGe/Ge heterostructures for p-HMOS applications
(2006)
N. Franco et al., with 7 authors including:
A. Vallêra
Journal articles
2006
Progress in the use of sprayed boric acid as a dopant source for silicon ribbons
(2006)
J. A. Silva et al., with 6 authors including:
J. A. Silva
J. Maia Alves
A. M. Vallêra
Conference papers
2006
Zone melting recrystallization of self supported silicon ribbons obtained by fast cvd from silane
(2006)
C. Rodrigues Pinto et al., with 6 authors including:
J. Maia Alves
A. M. Vallêra
Conference papers
2005
XRD analysis of strained Ge-SiGe heterostructures on relaxed SiGe graded buffers grown by hybrid epitaxy on Si(001) substrates
(2005)
N. Franco et al., with 8 authors including:
A. M. Vallêra
Journal articles
2005
Measurement Of Residual Stress In EFG Ribbons Using Phase Shifting IR Photoelastic Method
(2005)
Brito, M.C.
Maia Alves, J.
Serra, J.M.
Vallêra, A.M..
Journal articles
2005
Measurement of residual stress in multicrystalline silicon ribbons by a self calibrating infrared photoelastic method
(2005)
Brito, M.C.
Pereira, J.P.
Maia Alves, J.
Serra, J.M.
Vallêra, A.M..
Journal articles
2004
Measurement of residual stress in EFG ribbons using phase shifting IR photoelastic method
(2004)
M.C.Brito et al., with 6 authors including:
M.C.Brito
J.M. Alves
Vallera, A. M
Conference papers
2004
Measurement Of Residual Stress In Multicrystalline Silicon Ribbons By A Self Calibrating Infrared Photoelastic Method
(2004)
M.C.Brito
J.M. Serra
J.M. Alves
A.M.Vallera
Conference papers
2004
A differential mechanical profilometer for thickness measurement
(2004)
Maia Alves, J.
Brito, M.C.
Serra, J.M.
Vallêra, A.M..
Journal articles
2004
A Wave Lab inside a coaxial cable
(2004)
Serra, J.M.
Brito, M.C.
Maia Alves, J.
Vallêra, A.M..
Journal articles
2004
Pérgola Solar no Campus da Faculdade de Ciências
(2004)
J.M.Serra et al., with 6 authors including:
M.C. Brito
J.Maia Alves
Vallêra, A. M.
Conference papers
2002
Investigação e desenvolvimento de fitas finas de silício para aplicação fotovoltaica
(2002)
M.C. Brito et al., with 6 authors including:
J. Maia Alves
A.M. Vallera
Conference papers
2002
Silicon tubes by closed molten zone: a characterisation study
(2002)
Gamboa, R.M.
Brito, M.C.
Serra, J.M.
Maia Alves, J.
Vallera, A.M.
Journal articles
2002
Silicon sheet from silane: first results
(2002)
C. Rodrigues Pinto et al., with 6 authors including:
J.M. Serra
J. Maia Alves
A.M. Vallera
Journal articles
2001
Stress In Silicon Ribbons Crystallised From A Molten Zone: Influence Of Growth Parameters
(2001)
Brito, M.C. et al., with 6 authors including:
Maia Alves, J.
Vallera, A.M.
Conference papers
2001
Mono And Multi-Crystalline Silicon Solar Cells Based On Macroporous Silicon
(2001)
Lust, S.
Levy-Clement, C.
Gamboa, R.M.
Brito, J.
Vallera, A.M.
Conference papers
2000
Estudo das ondas com ultra-sons
(2000)
R.Nogueira
A.M.Vallêra
J.Maia Alves
Conference papers
2000
Silicon sheet materials grown by recrystallisation from linear and closed molten zones
(2000)
R. Gamboa
J. C. Henriques
J. M. Serra
J. Maia Alves
A. M. Vallera
Conference papers
2000
Overview and results of the EC Hexsi project
(2000)
G. Hahn et al., with 8 authors including:
A. M. Vallera
J. Maia Alves
Conference papers
2000
Determinação experimental da velocidade do som em diferentes gases. Estudo da sua variação com a temperatura no caso do ar
(2000)
R.Nogueira
J.Maia Alves
Serra, J. M.
Vallêra, A. M.
Conference papers
2000
Forças eléctricas e magnéticas
(2000)
R.V. Sá
A.M.Vallêra
J.Maia Alves
Conference papers
2000
Utilização do plano inclinado no ensino experimental da mecânica
(2000)
R.Capucho
A.M.Vallêra
J.Maia Alves
Conference papers
2000
Óptica com laser de bolso
(2000)
Carla Baptista
A.M.Vallêra
J. M. Serra
J. Maia Alves
Conference papers
1999
Photodefined etching of n+ layers diffused on p-type silicon substrates
(1999)
R. S. Videira
R. M. Gamboa
J. M. Alves
J. M. Serra
A. M. Vallera
Journal articles
1999
Patterned surfaces in p-type silicon by photodefined etching
(1999)
M. Martins
R.M.Gamboa
J.M.Alves
J. M. Serra
A. M. Vallera
Journal articles
1998
Uma contribuição para o ensino experimental da mecânica usando um plano inclinado
(1998)
R.V. Sá
R.Capucho
A.M.Vallêra
J. M. Serra
J. Maia Alves
Conference papers
1998
High temperature sound velocity measurement with piezoelectric transducers
(1998)
J. Maia Alves
A.M. Vallêra
Journal articles
1998
Thin-Film Characterization for High-Temperature Applications
(1998)
M. J. Lourenço
J. M. Serra
M. R. Nunes
A. M. Vallêra
C. A. Nieto de Castro
Journal articles
1998
First Solar Cells on Electrochemically Texturized Macroporous Silicon
(1998)
R. Gamboa et al., with 7 authors including:
J. Maia Alves
Vallêra, A. M.
Conference papers
1998
Non-Uniform Emitters in Silicon Solar Cells by Photo-Deffined Etch-Back
(1998)
R. Videira
R. Gamboa
J. M.Serra
J. Maia Alves
A. M. Vallera
Conference papers
1997
Surface texturization in multicristalline silicon by photoelectrochemical corrosion
(1997)
M. Martins et al., with 6 authors including:
J. Maia Alves
A. M. Vallera
Conference papers
1997
A study of the manufacture at 500 MWp of crystalline silicon photovoltaic modules
(1997)
T. Bruton
Vallêra, A. M.
Et al.
Conference papers
1996
Células solares fotovoltaicas
(1996)
J. M. Serra
J. Maia Alves
A. Vallêra
Conference papers
1996
Magnetic Effects in Transverse Elastic Constants of bcc Fe(Si),
(1996)
J. Maia Alves
A.M. Vallêra
Journal articles
1996
Optical absorption coefficient of polycrystalline silicon with very high oxygen content
(1996)
J.M.Serra
R. Gamboa
A.M. Vallêra
Journal articles
1996
Oxygen redistribution during diffusion in thin silicon layers
(1996)
J. M. Serra
A.M. Vallera
Journal articles
1995
A study on selective emitter formation through an oxide mask for silicon solar cells
(1995)
J.M.Serra
R. Gamboa
A.M. Vallêra
Conference papers
1995
Sensors for the Determination of the Thermal Conductivity of Molten Materials at High Temperatures
(1995)
M. J. Lourenço
J. M. Serra
M. R. Nunes
A. M. Vallêra
C. A. Nieto de Castro
Conference papers
1994
The Structure of Amylose Gels
(1994)
A. M. Vallêra
M. M. Cruz
S. Ring
F. Boué
Journal articles
1994
Silicon Ribbons by the STTRECH Process: Difusion Lengths of Samples with High Oxigen Content
(1994)
J.M.Serra
R. Gamboa
A. M. Vallêra
A.Eyer
W. Warta
Conference papers
1987
Adiabatic demagnetization technique to reach 1 K with a closed-cycle refrigerator
(1987)
A.M. Vallêra
J.Maia Alves
E. Ducla-Soares
Journal articles