Research output

Research output per year 1988 2020

• 794 Citations
• 16 h-Index
• 48 Article
• 11 Conference contribution
• 7 Conference article
• 1 Paper

Research output per year

Research output per year

Search results

• 2020

  Photoconductivity kinetics of indium sulfofluoride thin films

  Vygranenko, Y., Fernandes, M., Vieira, M., Lavareda, G., Nunes De Carvalho, C., Brogueira, P. & Amaral, A., 1 Jan 2020, In : EPJ Applied Physics. 89, 1, 10302.

  Research output: Contribution to journal › Article

  • Photoconductivity
  • Indium
  • photoconductivity
  • Photocurrents
  • indium
• 2019

  Conducting indium oxide films on plastic substrates by plasma enhanced reactive thermal evaporation

  Vygranenko, Y., Fernandes, M., Vieira, M., Lavareda, G., Nunes de Carvalho, C., Brogueira, P. & Amaral, A., 1 Dec 2019, In : Thin Solid Films. 691, 137604.

  Research output: Contribution to journal › Article

  • indium oxide
  • Thermal evaporation
  • Indium
  • Oxide films
  • indium oxides
  1 Citation (Scopus)
• 2018

  Etchability Dependence of InO _x and ITO Thin Films by Plasma Enhanced Reactive Thermal Evaporation on Structural Properties and Deposition Conditions

  Amaral, A., Lavareda, G., Carvalho, C. N. D., André, V., Vygranenko, Y., Fernandes, M. & Brogueira, P., 1 Jan 2018, In : MRS Advances. 3, 4, p. 207-212 6 p.

  Research output: Contribution to journal › Article

  Open Access

  File

  • indium tin oxide
  • Thermal evaporation
  • Tin oxides
  • Indium
  • Oxide films
  1 Citation (Scopus)

  14 Downloads (Pure)
• 2016

  Dopant transfer from poly-si thin films to c-Si: An alternative technique for device processing

  Ricardo, L., Amaral, A., Carvalho, C. & Lavareda, G., 1 Feb 2016, In : Materials Science in Semiconductor Processing. 42, p. 210-214 5 p.

  Research output: Contribution to journal › Article

  • Polysilicon
  • Doping (additives)
  • Thin films
  • Amorphous silicon
  • amorphous silicon
• 2014

  A CMOS micro power switched-capacitor DC-DC step-up converter for indoor light energy harvesting applications

  Carvalho, C., Lavareda, G. A. R., Amaral, A., Carvalho, C. A. N. D. & Paulino, N. F. S. V., Feb 2014, In : Analog Integrated Circuits and Signal Processing. 78, 2(SI), p. 333-351

  Research output: Contribution to journal › Article

  • Energy harvesting
  • Capacitors
  • Networks (circuits)
  • Amorphous silicon
  • Open circuit voltage
  4 Citations (Scopus)

• InOx thin films deposited by plasma assisted evaporation: Application in light shutters

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2014, In : Vacuum. 107, NA, p. 116-119

  Research output: Contribution to journal › Article

  Open Access
  1 Citation (Scopus)
• 2013

  p/n junction depth control using amorphous silicon as a low temperature dopant source

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2013, In : Thin Solid Films. 543, NA, p. 122-124

  Research output: Contribution to journal › Article

  Open Access
  5 Citations (Scopus)

• P-type CuxS thin films: Integration in a thin film transistor structure

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2013, In : Thin Solid Films. 543, NA, p. 3-6

  Research output: Contribution to journal › Article

  Open Access
  11 Citations (Scopus)

• Thermal dehydrogenation of amorphous silicon: A time-evolution study

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2013, In : Thin Solid Films. 543, NA, p. 48-50

  Research output: Contribution to journal › Article

  Open Access
  3 Citations (Scopus)
• 2012

  Device quality InO_x:Sn and InO_x thin films deposited at room temperature with different rf-power densities

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2012, In : Thin Solid Films. 526, NA, p. 221–224

  Research output: Contribution to journal › Article

  Open Access
  1 Citation (Scopus)

• Dye-sensitized 1D anatase TiO₂ nanorods for tunable efficient photodetection in the visible range

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2012, In : Sensors And Actuators B-Chemical. 161, NA, p. 901–907

  Research output: Contribution to journal › Article

  Open Access
  8 Citations (Scopus)

• p-Type CuOX Thin Films by rf-Plasma Enhanced Reactive Thermal Evaporation: Influence of rf-Power Density

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2012, In : Journal Of Nanoscience And Nanotechnology. 12, 8, p. 6754-6757

  Research output: Contribution to journal › Article

  Open Access
  5 Citations (Scopus)

• Thermal dehydrogenation of amorphous silicon deposited on c-Si: Effect of the substrate temperature during deposition

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2012, In : Physica Status Solidi (C) Current Topics In Solid State Physics. 9, 10-11, p. 2198–2202

  Research output: Contribution to journal › Article

  Open Access
  7 Citations (Scopus)
• 2011

  Transparent p-type Cu_xS thin films

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2011, In : Journal Of Alloys And Compounds. 509, NA, p. 5099-5104

  Research output: Contribution to journal › Article

  Open Access
• 2010

  Field Effect and Light-Assisted a-Si:H Sensors for Detection of Ions in Solution

  Lavareda, G. A. R., Carvalho, C. A. N. D., DEE Group Author & Vieira, M. M. D. A. C., 1 Jan 2010, In : SENSOR LETTERS. 8, 3, p. 493-496

  Research output: Contribution to journal › Article

  Open Access

• Highly transparent undoped semiconducting ZnOx thin films deposited at room temperature by rf-PERTE - Influence of rf power

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In : JOURNAL OF NON-CRYSTALLINE SOLIDS. 356, NA, p. 1392-1394

  Research output: Contribution to journal › Article

  Open Access
  1 Citation (Scopus)

• On the Role of Tin Doping in InOx Thin Films Deposited by Radio Frequency-Plasma Enhanced Reactive Thermal Evaporation

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In : JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY. 10, 4, p. 2713-2716

  Research output: Contribution to journal › Article

  Open Access
  4 Citations (Scopus)

• Optoelectronic properties of transparent p-type semiconductor Cu(x)S thin films

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In : PHYSICA STATUS SOLIDI A. 207, 7, p. 1652-1654

  Research output: Contribution to journal › Article

  Open Access
  10 Citations (Scopus)

• Ultrasensitive microchip sensor based on boron-containing polyfluorene nanofilms

  Ribeiro, C., Bonifácio, V., Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In : Biosensors & Bioelectronics. 26, 4, p. 1662-1665

  Research output: Contribution to journal › Article

  Open Access
  18 Citations (Scopus)

• Undoped InOx Films Deposited by Radio Frequency Plasma Enhanced Reactive Thermal Evaporation at Room Temperature: Importance of Substrate.

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In : Journal Of Nanoscience And Nanotechnology. 10, 4, p. 2701-2704

  Research output: Contribution to journal › Article

  Open Access
• 2009

  Pinpi'n and Pinpii'n Multilayer Devices with Voltage Controlled Optical Readout

  Lavareda, G. A. R., Carvalho, C. A. N. D., DEE Group Author & Vieira, M. M. D. A. C., 1 Jan 2009, In : Journal Of Nanoscience And Nanotechnology. 9, 7, p. 4022-4027

  Research output: Contribution to journal › Article

  Open Access
  21 Citations (Scopus)
• 2008

  Influence of oxygen partial pressure on the properties of undoped InOx films deposited at room temperature by rf-PERTE

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2008, In : Journal of Non-Crystalline Solids. 354, 15-16, p. 1643-1647

  Research output: Contribution to journal › Article

  Open Access
  7 Citations (Scopus)

• Role of rf power on the properties of undoped SnOx films deposited by rf-PERTE at low substrate temperature

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2008, In : Surface & Coatings Technology. 202, 16, p. 3893-3896

  Research output: Contribution to journal › Article

  Open Access
  2 Citations (Scopus)
• 2007

  Bias sensitive multispectral structures for imaging applications

  Vieira, M., Fantoni, A., Fernandes, M., Louro, P., Lavareda, G. & Carvalho, C. N., 16 Jul 2007, In : Thin Solid Films. 515, 19 SPEC. ISS., p. 7566-7570 5 p.

  Research output: Contribution to journal › Article

  • indium tin oxide
  • Tin oxides
  • Indium
  • Threshold voltage
  • Imaging techniques
  13 Citations (Scopus)
• 2006

  InO_x semiconductor films deposited on glass substrates for transparent electronics

  Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2006, In : Journal of Non-Crystalline Solids. 352, NA, p. 2315-2318

  Research output: Contribution to journal › Article

  Open Access
  30 Citations (Scopus)

• Transparent thin film transistors based on indium oxide semiconductor

  Lavareda, G. L., Carvalho, N., Fortunato, E. M. C., Ramos, A. R. L., Alves, E., Conde, O. & Amaral, A., 15 Jul 2006, In : Journal of Non-Crystalline Solids. 352, 23-25, p. 2311-2314 4 p.

  Research output: Contribution to journal › Article

  Open Access

  • indium oxides
  • transistors
  • thin films
  • threshold voltage
  • oxide films
  42 Citations (Scopus)
• 2005

  ITO films with enhanced electrical properties deposited on unheated ZnO-coated polymer substrates

  Carvalho, N., Lavareda, G. L., Fortunato, E. M. C., Gonçalves, A., Nascimento, R. & Amaral, A., 25 Apr 2005, In : MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY. 118, 1-3, p. 66-69 4 p.

  Research output: Contribution to journal › Article

  Open Access

  • indium oxides
  • tin oxides
  • polyethylene terephthalate
  • oxide films
  • electrical properties
  16 Citations (Scopus)
• 2004

  a-Si: H TFT enhancement by plasma processing of the insulating/semiconductor interface

  Lavareda, G., Carvalho, N., Amaral, A., Fortunato, E. & Vilarinho, P., 15 Jun 2004, In : Materials Science And Engineering B-Advanced Functional Solid-State Materials. 109, 1-3, p. 264-268 5 p.

  Research output: Contribution to journal › Article

  • Plasma applications
  • Thin film transistors
  • Semiconductor materials
  • silicon nitride
  • transistors
  5 Citations (Scopus)

• High field-effect mobility zinc oxide thin film transistors produced at room temperature

  Fortunato, E. M. C., Pimentel, A. C. M. B. G., Pereira, L. M. N., Gonçalves, A., Lavareda, G. L., Aguas, H., Ferreira, I., Carvalho, N. & Martins, R. F. D. P., 15 Jun 2004, In : Journal of Non-Crystalline Solids. 338-340, 1 SPEC. ISS., p. 806-809 4 p.

  Research output: Contribution to journal › Article

  Open Access

  • zinc oxides
  • transistors
  • room temperature
  • thin films
  • oxynitrides
  133 Citations (Scopus)

• ITO films deposited by rf-PERTE on unheated polymer substrates - Properties dependence on In-Sn alloy composition

  Carvalho, C. A. N. D., Lavareda, G. A. R., Fortunato, E. M. C., Vilarinho, P. & Amaral, A., 15 Jun 2004, In : Materials Science And Engineering B-Advanced Functional Solid-State Materials. 109, 1-3, p. 245-248 4 p.

  Research output: Contribution to journal › Article

  Open Access

  • indium tin oxide
  • Tin oxides
  • Indium
  • Oxide films
  • indium oxides
  11 Citations (Scopus)

• Properties of a-Si : H TFTs using silicon carbonitride as dielectric

  Lavareda, G. A. R., Carvalho, C. A. N. D., Fortunato, E. M. C., Amaral, A. & Ramos, A. R. L., 15 Jun 2004, In : Journal of Non-Crystalline Solids. 338-40, 1 SPEC. ISS., p. 797-801 5 p.

  Research output: Contribution to journal › Article

  Open Access
  13 Citations (Scopus)

• Properties of ITO films deposited by plasma enhanced RTE on unheated polymer sheets - dependence on rf electrode distance from substrates

  Carvalho, C. A. N. D., Lavareda, G. A. R., Fortunato, E. M. C. & Amaral, A., 15 Jun 2004, In : Journal of Non-Crystalline Solids. 338-40, 1 SPEC. ISS., p. 630-633 4 p.

  Research output: Contribution to journal › Article

  Open Access

  • indium oxides
  • tin oxides
  • oxide films
  • radio frequencies
  • electrodes
  3 Citations (Scopus)
• 2003

  Dependence of TFT performance on the dielectric characteristics

  Lavareda, G. A. R., Carvalho, C. A. N. D., Amaral, A. & Fortunato, E. M. C., 3 Mar 2003, In : Thin Solid Films. 427, 1-2, p. 71-76

  Research output: Contribution to journal › Article

  Open Access
  18 Citations (Scopus)

• Properties of ITO films deposited by r.f.-PERTE on unheated polymer substrates-dependence on oxygen partial pressure

  Carvalho, C. A. N. D., Lavareda, G. A. R., Fortunato, E. M. C. & Amaral, A., 3 Mar 2003, In : Thin Solid Films. 427, 1-2, p. 215-218

  Research output: Contribution to journal › Article

  Open Access
  43 Citations (Scopus)
• 2002

  Effect of rf power on the properties of ITO thin films deposited by plasma enhanced reactive thermal evaporation on unheated polymer substrates

  Carvalho, C. A. N. D., Luís, A. M., Conde, O., Fortunato, E. M. C., Lavareda, G. A. R. & Amaral, A., Apr 2002, In : Journal of Non-Crystalline Solids. 299-302, PART 2, p. 1208-1212 5 p.

  Research output: Contribution to journal › Article

  20 Citations (Scopus)

• Effect of thickness on the properties of ITO thin films deposited by RF-PERTE on unheated, flexible, transparent substrates

  Carvalho, C. A. N. D., A. M., L., Lavareda, G. L., Fortunato, E. M. C. & Amaral, A., 1 Mar 2002, In : Surface & Coatings Technology. 151-152, NA, p. 252-256 5 p.

  Research output: Contribution to journal › Article

  Open Access

  • indium tin oxide
  • Tin oxides
  • Indium
  • Oxide films
  • indium oxides
  21 Citations (Scopus)

• Preliminary communication flexible cellulose derivative PDLC type cells

  Almeida, P. L., Lavareda, G., de Carvalho, C. N., Amaral, A., Godinho, M. H., Cidade, M. T. & Figueirinhas, J. L., 1 Jan 2002, In : Liquid Crystals. 29, 3, p. 475-477 3 p.

  Research output: Contribution to journal › Article

  • Cellulose derivatives
  • cellulose
  • communication
  • Substrates
  • cells
  9 Citations (Scopus)
• 1996

  Improved a-Si: H TFT performance using a-Six-Ni1-x/a-SixC1-x stack dielectrics

  Lavareda, G., Fortunato, E., Carvalho, C. N. & Martins, R., 1996, In : MRS Proceedings. 424, p. 59-64 6 p.

  Research output: Contribution to journal › Article

  • silicon nitride
  • Silicon nitride
  • silicon carbide
  • Lead alloys
  • Plasma enhanced chemical vapor deposition
  2 Citations (Scopus)
• 1994

  Effect of different TCO interfaces on the performances presented by hydrogenated amorphous silicon p-i-n solar cells

  Fortunato, E., Carvalho, C. N., Bicho, A. & Martins, R., 1994, In : Proceedings Of The Ieee. 1, p. 646-649 4 p.

  Research output: Contribution to journal › Article

  • Dark currents
  • Amorphous silicon
  • Solar cells
  • Current density
  • amorphous silicon

• Influence of photodegradation on the υτ and microstructure of pin a-Si: H devices

  Vieira, M., Fortunato, E., Carvalho, CN., Lavareda, G. & Martins, R., 1994, In : Vacuum. 45, 10-11, p. 1109-1111 3 p.

  Research output: Contribution to journal › Article

  • Photodegradation
  • Hydrogen
  • Photoconductivity
  • degradation
  • Degradation

• Light and temperature effect on pin a-Si: H device performance

  Vieira, M., Fortunato, E., Lavareda, G., Carvalho, CN. & Martins, R., 1994, In : Vacuum. 45, 10-11, p. 1147-1149 3 p.

  Research output: Contribution to journal › Article

  • Thermal effects
  • temperature effects
  • Defects
  • performance
  • defects
• 1993

  Role of photodegradation on the \x03C4 product and microstructure of the a-Si: H pin devices

  Vieira, M. M. D. A. C., Fortunato, E. M. C., Lavareda, G. L., Carvalho, N. & Martins, R. F. D. P., Jan 1993, In : Materials Research Society Symposium Proceedings . 297, p. 637-642 6 p.

  Research output: Contribution to journal › Article

  Open Access

  • products
  • microstructure
  • degradation
  • methylidyne
  • hydrogen

• Temperature and light induced degradation effect on a-Si:H photovoltaic PIN device properties

  Vieira, M. M. D. A. C., Fortunato, E. M. C., Carvalho, N., Lavareda, G. L., Soares, F. & Martins, R. F. D. P., Jan 1993, In : Proceedings of SPIE – International Society of Photo-Optical Instrumentation Engineers . 1985, p. 558-569 12 p.

  Research output: Contribution to journal › Article

  • degradation
  • defects
  • hydrogen
  • products
  • temperature

• “Large area position sensitive detector based on amorphous silicon technology”

  Fortunato, E. M. C., Vieira, M. M. D. A. C., Ferreira, L., Carvalho, N., Lavareda, G. L. & Martins, R. F. D. P., 1993, In : Materials Research Society Symposium Proceedings . 297, p. 981-986 6 p.

  Research output: Contribution to journal › Article

  Open Access

  File
  20 Citations (Scopus)

  2 Downloads (Pure)
• 1991

  A thin SiO layer as a remedy for the indium reduction at the In₂O₃/μc-Si:C:H interface

  de Nijs, J. M. M., Carvalho, C., Santos, M. & Martins, R., 1991, In : Applied Surface Science. 52, 4, p. 339-342 4 p.

  Research output: Contribution to journal › Article

  • silicon monoxide
  • Indium
  • Diffusion barriers
  • Silicon oxides
  • Plasma enhanced chemical vapor deposition
  5 Citations (Scopus)
• 1990

  The Role of the species formed in PECVD systems on the density of states of a-Si: H films

  Martins, R. F. D. P., Rodrigues, L., Vieira, M. M. D. A. C., Fortunato, E. M. C., Moreira Santos, M., Dirani, E. A. T., Carvalho, N. & Baia, I., Jan 1990, In : Materials Research Society Symposium Proceedings . 192

  Research output: Contribution to journal › Article

  Open Access

  • vapor deposition
  • electrodes
  • hydrogen
  • augmentation
  • photocurrents
• 1989

  Hydrogenated thin film silicon semiconductors produced by a two consecutive decomposition and deposition chamber system

  Guimarães, L. J. M., Martins, R. F. D. P., Santos, M., Maçarico, F., Carvalho, N., Fortunato, E. M. C. & Vieira, M. M. D. A. C., Dec 1989, In : Vacuum. 39, 7-8, p. 789-790 2 p.

  Research output: Contribution to journal › Article

  Open Access

  • Silicon
  • Thin films
  • Semiconductor materials
  • chambers
  • decomposition
  2 Citations (Scopus)

• “A new weakly absorbing and highly conductive (c-Six:Cy:Oz:H) material produced by a TCDDC system”

  Willeke, G., Martins, R. F. D. P., Vieira, M. M. D. A. C., Fortunato, E. M. C., Ferreira, I., Santos, M., Maçarico, A., Carvalho, N. & Guimarães, L. J. M., 1989, In : Congress of the International Solar Energy Society Proceedings . p. 217-221 5 p.

  Research output: Contribution to journal › Article

  • microcrystals
  • crystallites
  • absorptivity
  • transport properties
  • chambers