Research output per year
Research output per year
- 1 - 50 out of 88 results
Search results
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2024
Determining Thin Film Characteristics by Prism Coupling Technique
Lourenço, P., Vygranenko, Y., Costa, J., Fernandes, M., Fantoni, A., Vieira, M. & Lavareda, G., 2024, Technological Innovation for Human-Centric Systems: 15th IFIP WG 5.5/SOCOLNET Advanced Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2024, Caparica, Portugal, July 3–5, 2024, Proceedings. Camarinha-Matos, L. M. & Ferrada, F. (eds.). Cham: Springer, p. 337-347 11 p. (IFIP Advances in Information and Communication Technology; vol. 716 IFIPAICT).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
1 Citation (Scopus) -
Extended Tauc-Lorentz Model for Amorphous Materials with Non-Exponential Band Tails
Vygranenko, Y. & Lavareda, G., Nov 2024, In: IEEE Electron Device Letters. 45, 11, p. 2146-2149 4 p.Research output: Contribution to journal › Article › peer-review
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2023
Characterization and modeling of a-Si:H-based n-i-p photodiodes with protocrystalline silicon p-layers
Vygranenko, Y., Lavareda, G., Fernandes, M. & Vieira, M., 1 Nov 2023, In: Thin Solid Films. 784, 7 p., 140072.Research output: Contribution to journal › Article › peer-review
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Effect of dehydrogenation on optical constants of silicon nitride thin films
Lavareda, G., Vygranenko, Y., Amaral, A. & Brogueira, P., Nov 2023, In: Optical Materials. 145, 6 p., 114480.Research output: Contribution to journal › Article › peer-review
2 Citations (Scopus) -
2021
Dependence of optical properties on composition of silicon carbonitride thin films deposited at low temperature by PECVD
Lavareda, G., Vygranenko, Y., Amaral, A., Nunes de Carvalho, C., Barradas, N. P., Alves, E. & Brogueira, P., 1 Jan 2021, In: Journal of Non-Crystalline Solids. 551, 120434.Research output: Contribution to journal › Article › peer-review
11 Citations (Scopus) -
Electrical, optical and photoconductive properties of Sn-doped indium sulfofluoride thin films
Vygranenko, Y., Fernandes, M., Vieira, M., Lavareda, G., Nunes de Carvalho, C., Brogueira, P., Amaral, A., Barradas, N. P. & Alves, E., Jan 2021, In: Materials Science in Semiconductor Processing. 121, 105349.Research output: Contribution to journal › Article › peer-review
2 Citations (Scopus) -
2020
An indium-oxide electrode with discontinuous Au layers for plasmonic devices
Vygranenko, Y., Lavareda, G., André, V., Brogueira, P., Amaral, A., Fernandes, M., Fantoni, A. & Vieira, M., 2020, Oxide-based Materials and Devices XI. Rogers, D. J., Look, D. C. & Teherani, F. H. (eds.). SPIE-International Society for Optical Engineering, 1128127. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 11281).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open AccessFile30 Downloads (Pure) -
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 › peer-review
2 Citations (Scopus) -
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 › peer-review
1 Citation (Scopus) -
Optical and photoconductive properties of indium sulfide fluoride thin films
Vygranenko, Y., Vieira, M., Lavareda, G., Nunes de Carvalho, C., Brogueira, P., Amaral, A., Barradas, N. P. & Alves, E., 1 Feb 2019, In: Thin Solid Films. 671, p. 49-52 4 p.Research output: Contribution to journal › Conference article › peer-review
Open AccessFile5 Citations (Scopus)86 Downloads (Pure) -
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 › peer-review
Open AccessFile1 Citation (Scopus)61 Downloads (Pure) -
2017
Low Temperature Deposition of Conducting Indium Oxide Films for Solar Cell Applications
Lavareda, G. L., Vygranenko, Y., Fernandes, M., Vieira, M. M. D. A. C., Carvalho, N., Brogueira, P. & Amaral, A., 2 Nov 2017, Proceedings of the 34th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC). p. 164-166 3 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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2016
Automated rf-PERTE System for Room Temperature Deposition of TCO Coatings
Fernandes, M., Vygranenko, Y., Vieira, M. M. D. A. C., Lavareda, G., Carvalho, C. N. D. & Amaral, A., 2016, Proceedings of the 2016 E-MRS Spring Meeting Symposium T - Advanced Materials and Characterization Techniques for Solar Cells III. Yerci, S., Crupi, I., Gordon, I., Fejfar, A. & Catchpole, K. (eds.). Amsterdam: ELSEVIER SCIENCE BV, p. 96-101 6 p. (Energy Procedia; vol. 102).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open AccessFile7 Citations (Scopus)20 Downloads (Pure) -
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 › peer-review
1 Citation (Scopus) -
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. 333-351Research output: Contribution to journal › Article › peer-review
7 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. 116-119Research output: Contribution to journal › Article › peer-review
Open Access1 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. 122-124Research output: Contribution to journal › Article › peer-review
Open Access7 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. 3-6Research output: Contribution to journal › Article › peer-review
Open Access14 Citations (Scopus) -
Structural, electrical and magnetic studies of Co:SnO2 and (Co,Mo):SnO2 films prepared by pulsed laser deposition
Lavareda, G. A. R., 1 Jan 2013, In: Applied Surface Science. 278, NA, p. 127-131Research output: Contribution to journal › Article › peer-review
Open Access30 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. 48-50Research output: Contribution to journal › Article › peer-review
Open Access4 Citations (Scopus) -
2012
Device quality InOx:Sn and InOx 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. 221–224Research output: Contribution to journal › Article › peer-review
Open Access1 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. 901–907Research output: Contribution to journal › Article › peer-review
Open Access10 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. 6754-6757Research output: Contribution to journal › Article › peer-review
Open Access10 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. 2198–2202Research output: Contribution to journal › Article › peer-review
Open Access12 Citations (Scopus) -
2011
A DC-DC step-up μ-power converter for energy harvesting applications, using maximum power point tracking, based on fractional open circuit voltage
Paulino, N. F. S. V., Lavareda, G. A. R., Carvalho, C. A. N. D. & DEE Group Author, 1 Jan 2011, IFIP Advances in Information and Communication Technology. Vol. 349 AICT. p. 510-517Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access4 Citations (Scopus) -
A step-up μ-power converter for solar energy harvesting applications, using Hill Climbing maximum power point tracking
Paulino, N. F. S. V., Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2011, na. p. 1924-1927Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access12 Citations (Scopus) -
Membrane Selectivity versus Sensor Response in Hydrogenated Amorphous Silicon CHEMFETs Using a Semi-Empirical Model
Vieira, M. M. D. A. C., Lavareda, G. A. R. & DEE Group Author, 1 Jan 2011, In: Journal of Nanoscience and Nanotechnology. 11, 10, p. 8844-8847Research output: Contribution to journal › Article › peer-review
Open Access -
Transparent p-type CuxS thin films
Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2011, In: Journal of Alloys and Compounds. 509, NA, p. 5099-5104Research output: Contribution to journal › Article › peer-review
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. 493-496Research output: Contribution to journal › Article › peer-review
Open Access -
Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In: JOURNAL OF NON-CRYSTALLINE SOLIDS. 356, NA, p. 1392-1394Highly transparent undoped semiconducting ZnOx thin films deposited at room temperature by rf-PERTE - Influence of rf power
Research output: Contribution to journal › Article › peer-review
Open Access3 Citations (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. 2713-2716Research output: Contribution to journal › Article › peer-review
Open Access4 Citations (Scopus) -
Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In: PHYSICA STATUS SOLIDI A. 207, 7, p. 1652-1654Optoelectronic properties of transparent p-type semiconductor Cu(x)S thin films
Research output: Contribution to journal › Article › peer-review
Open Access13 Citations (Scopus) -
Ribeiro, C., Bonifácio, V., Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In: Biosensors & Bioelectronics. 26, 4, p. 1662-1665Ultrasensitive microchip sensor based on boron-containing polyfluorene nanofilms
Research output: Contribution to journal › Article › peer-review
Open Access19 Citations (Scopus) -
Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In: Journal of Nanoscience and Nanotechnology. 10, 4, p. 2701-2704Undoped InOx Films Deposited by Radio Frequency Plasma Enhanced Reactive Thermal Evaporation at Room Temperature: Importance of Substrate.
Research output: Contribution to journal › Article › peer-review
Open Access -
2009
Electronic detection and quantification of ions in solution using an a-Si: H field-effect device
Costa, J., Fernandes, M., Vieira, M., Lavareda, G., Carvalho, C. N. & Karinali, A., 1 Dec 2009, Amorphous and Polycrystalline Thin-Film Silicon Science and Technology - 2009. Vol. 1153. p. 409-414 6 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
1 Citation (Scopus) -
Electronic Detection and Quantification of ions in solution using an a-Si:H Field-effect Device
Lavareda, G. A. R., Carvalho, C. A. N. D., DEE Group Author & Vieira, M. M. D. A. C., 1 Jan 2009, -. p. -Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access -
Optical processing devices for optical communications: multilayered a-SiC:H architectures
Louro, P., Vieira, M., Vieira, M. M. D. A. C., Fernandes, M., Fantoni, A., Lavareda, G. L. & Carvalho, N., 2009, p. 379-384. 6 p.Research output: Contribution to conference › Paper › peer-review
1 Citation (Scopus) -
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. 4022-4027Research output: Contribution to journal › Article › peer-review
Open Access21 Citations (Scopus) -
2008
Improvement in pinpin device architectures for imaging applications
Louro, P., Fantoni, A., Fernandes, M., Lavareda, G., Carvalho, N. & Vieira, M., 2008, Amorphous and Polycrystalline Thin-Film Silicon Science and Technology - 2008. Vol. 1066. p. 407-412 6 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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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. 1643-1647Research output: Contribution to journal › Article › peer-review
Open Access7 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. 3893-3896Research output: Contribution to journal › Article › peer-review
Open Access2 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 › peer-review
13 Citations (Scopus) -
2006
InOx 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. 2315-2318Research output: Contribution to journal › Article › peer-review
Open Access34 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 › peer-review
Open Access50 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 › peer-review
Open Access17 Citations (Scopus) -
ITO properties on anisotropic flexible transparent cellulosic substrates under different stress conditions
Amaral, A., Nunes De Carvalho, C., Brogueira, P., Lavareda, G., Melo, L. V. & Godinho, M. H., 25 Apr 2005, In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 118, 1-3, p. 183-186 4 p.Research output: Contribution to journal › Conference article › peer-review
15 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 › peer-review
5 Citations (Scopus) -
Enhancement of the electrical properties of ITO deposited on polymeric substrates by using a ZnO buffer layer
Fortunato, E. M. C., Gonçalves, A., Carvalho, N., Pimental, A., Lavareda, G. L., Marques, A. & Martins, R. F. D. P., 1 Jan 2004, Materials Research Society Symposium Proceedings. Vol. 814. p. 231-236 6 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access2 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 › peer-review
Open Access148 Citations (Scopus) -
Improvement of field-effect mobilities in TFTs: Surface plasma treatments vs stack dielectric structures
Lavareda, G. A. R., Carvalho, C. A. N. D., Amaral, A. & Fortunato, E. M. C., 1 Jan 2004, Materials Science Forum. Vol. 455-456. p. 64-68 5 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access