Research output per year
Research output per year
Research output
- 50 results
Search results
-
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
2 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
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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 › peer-review
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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) -
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)21 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 › peer-review
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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
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. 116-119Research 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 Access6 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 Access11 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 Access3 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 Access9 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 Access5 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 Access9 Citations (Scopus) -
2011
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 Access1 Citation (Scopus) -
Lavareda, G. A. R. & Carvalho, C. A. N. D., 1 Jan 2010, In: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY. 10, 4, p. 2713-2716On the Role of Tin Doping in InOx Thin Films Deposited by Radio Frequency-Plasma Enhanced Reactive Thermal Evaporation
Research 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 Access10 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 Access18 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
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
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 Access32 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 Access44 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 Access16 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) -
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 Access137 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 › peer-review
Open Access11 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 › peer-review
Open Access13 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 › peer-review
Open Access3 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. 71-76Research output: Contribution to journal › Article › peer-review
Open Access18 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. 215-218Research output: Contribution to journal › Article › peer-review
Open Access43 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 › peer-review
21 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 › peer-review
Open Access23 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 › peer-review
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 › peer-review
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 › peer-review
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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 › peer-review
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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 › peer-review
1 Citation (Scopus) -
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 › peer-review
Open Access -
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 › peer-review
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“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 › peer-review
Open AccessFile20 Citations (Scopus)4 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 › peer-review
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 . 192Research output: Contribution to journal › Article › peer-review
Open Access -
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 › peer-review
Open Access2 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 › peer-review