UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias

Research Output 1984 2020

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Conference article
2019

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 journalConference article

Indium sulfide
indium sulfides
Fluorides
fluorides
Photoconductivity
2018
1 Citation (Scopus)

Fractional model of the electrochemical capacitor relaxation phenomenon

Martynyuk, V., Ortigueira, M., Fedula, M. & Savenko, O., 1 Aug 2018, In : Bulletin of the Polish Academy of Sciences: Technical Sciences. 66, 4, p. 441-448 8 p.

Research output: Contribution to journalConference article

Open Access
electrochemical capacitors
Capacitors
Impulse response
impulses
Inverse transforms
1 Citation (Scopus)

The Integrated Design of Product-Service Systems using the DIVERSITY Platform An Application Case

Sala, R., Pezzotta, G., Sassanelli, C., Pirola, F., Bertelè, C., Neves-Silva, R., Campos, A. R. & Terzi, S., 1 Jan 2018, In : IFAC-PapersOnLine. 51, 11, p. 1311-1316 6 p.

Research output: Contribution to journalConference article

Open Access
Systems analysis
Industry
2017

Fault tolerant sensing model for cyber-physical systems

Ghimire, S., Sarraipa, J., Agostinho, C. & Jardim-Goncalves, R., 1 Jan 2017, In : Simulation Series. 49, 7, p. 104-112 9 p.

Research output: Contribution to journalConference article

Actuators
Sensors
Interfaces (computer)
Decision making
Cyber Physical System
1 Citation (Scopus)
6 Downloads (Pure)

Feature ranking and rank aggregation for automatic sleep stage classification: A comparative study

Najdi, S., Gharbali, A. A. & Fonseca, J. M., 18 Aug 2017, In : BioMedical Engineering Online. 16, 78.

Research output: Contribution to journalConference article

Open Access
File
Sleep Stages
Agglomeration
Feature extraction
Sleep
Electrooculography
1 Citation (Scopus)
14 Downloads (Pure)

Software-driven active customer interface for DER integration

Ringelstein, J., Shalaby, M., Sanduleac, M., Alacreu, L., Delgado-Gomes, V. & Martins, J. F., 1 Oct 2017, In : CIRED - Open Access Proceedings Journal. 2017, 1, p. 2003-2006 4 p.

Research output: Contribution to journalConference article

Open Access
File
Smart meters
Energy resources
Information technology
2016

Electromagnetic Interference from a Wireless Power Transfer System: Experimental Results

Romba, L., Valtchev, S. & Melicio, R., May 2016, In : Renewable Energy & Power Quality Journal. 1, 14, p. 1020–1024

Research output: Contribution to journalConference article

Signal interference
Magnetic fields
Energy transfer
Charging (batteries)
Technology transfer

Wireless energy transfer with three-phase magnetic field system: experimental results

Romba, L., Valtchev, S. & Melício, R., May 2016, In : Renewable Energy & Power Quality Journal. 1, 14, p. 1037–1041

Research output: Contribution to journalConference article

Energy transfer
Magnetic fields
Charging (batteries)
Technology transfer
Electric vehicles
2015

Characterization of a-Si: H Solar Cell Modules on Plastic Substrates by High Resolution LBIC Technique

Fernandes, M., Vygranenko, Y., Vieira, M., Sazonov, A., Yang, R. & Khosropour, A., 1 Jan 2015, In : Energy Procedia. 84, p. 93-98 6 p.

Research output: Contribution to journalConference article

Plastic films
Surface defects
SPICE
Current voltage characteristics
Amorphous silicon
1 Citation (Scopus)

Preparation and Characterization of a-SiC: H Absorber Layer for Semi-transparent Solar Cells

Vygranenko, Y., Fernandes, M., Louro, P., Vieira, M. & Sazonov, A., 1 Jan 2015, In : Energy Procedia. 84, p. 56-61 6 p.

Research output: Contribution to journalConference article

Optical band gaps
Solar cells
Electric current measurement
Open circuit voltage
Current voltage characteristics
2014

Add/drop filters based on SiC technology for optical interconnects

Vieira, M., Vieira, M. A., Louro, P., Fantoni, A. & Silva, V., 2014, In : IOP Conference Series: Materials Science and Engineering. 56, 1, 012008.

Research output: Contribution to journalConference article

Open Access
Optical interconnects
Wavelength
Optoelectronic devices
Heterojunctions
Tuning
3 Citations (Scopus)

A distributed SPICE model for amorphous silicon solar cells

Vygranenko, Y., Fernandes, M., Vieira, M. M. D. A. C., Khosropour, A. & Sazonov, A., 2014, In : Energy Procedia. 60, C, p. 96-101 6 p.

Research output: Contribution to journalConference article

Silicon solar cells
SPICE
Amorphous silicon
Networks (circuits)
Photovoltaic cells
3 Citations (Scopus)

Home VLC using pinpin a-SiC: H multilayer devices

Louro, P., Silva, V., Rodrigues, I., Vieira, M. A. & Vieira, M., 2014, In : Materials Research Society Symposium Proceedings. 1693

Research output: Contribution to journalConference article

Open Access
optical communication
Multilayers
Optical filters
optical filters
Photodetectors
Open Access
Ultraviolet radiation
Multilayers
Wavelength
sensitivity
wavelengths

Integrated Visible optical filter and photodetector for detection of FRET signals

Louro, P., Charneca, A., Silva, V., Vieira, M. & Karmali, A., 2014, In : Materials Research Society Symposium Proceedings. 1689, 651.

Research output: Contribution to journalConference article

Open Access
Optical filters
optical filters
resonance fluorescence
Nanosensors
Photodetectors

Near-UV background as a bridge between visible and infrared communication

Vieira, M., Vieira, M. A., Silva, V., Rodrigues, I. & Louro, P., 2014, In : Materials Research Society Symposium Proceedings. 1666

Research output: Contribution to journalConference article

Open Access
communication
Infrared radiation
Wavelength
selectors
Communication

Optimization of the protocrystalline p-layer in a-Si: H-based n-i-p photodiodes

Vygranenko, Y., Fernandes, M., Vieira, M. & Sazonov, A., 2014, In : Materials Research Society Symposium Proceedings. 1666

Research output: Contribution to journalConference article

Open Access
Optical band gaps
Photodiodes
photodiodes
Wavelength
optimization
2013
6 Citations (Scopus)

Photodetector with integrated optical thin film filters

Vieira, M. A., Vieira, M., Louro, P., Silva, V. & Garção, A. S., 1 Jan 2013, In : Journal Of Physics: Conference Series. 421, 1, 012011.

Research output: Contribution to journalConference article

Open Access
photometers
filters
thin films
wavelengths
optical filters
2010
34 Citations (Scopus)

Solid-state electrochromic devices using pTMC/PEO blends as polymer electrolytes

Barbosa, P. C., Rodrigues, L. C., Silva, M. M., Smith, M. J., Parola, A. J., Pina, F. & Pinheiro, C., 25 Jan 2010, In : Electrochimica Acta. 55, 4, p. 1495-1502 8 p.

Research output: Contribution to journalConference article

Electrochromic devices
Polyethylene oxides
Electrolytes
Polymers
Tin oxides
2007
7 Citations (Scopus)

Low-power CMOS comparator with embedded amplification for ultra-high-speed ADCs

Oliveira, J. P., Goes, J., Esperança, B., Paulino, N. & Fernandes, J., 27 Sep 2007, In : Proceedings - IEEE International Symposium on Circuits and Systems. p. 3602-3605 4 p., 4253460.

Research output: Contribution to journalConference article

Amplification
Energy efficiency
Switched capacitor networks
MOS devices
2005
43 Citations (Scopus)
Zinc Oxide
Zinc oxide
zinc oxides
Ultraviolet detectors
Ozone
2004
1 Citation (Scopus)
Error detection
Error correction
Ad hoc networks
Multi agent systems
Agent Technology
2003
1 Citation (Scopus)

Object oriented software engineering for programmable logical controllers: A successful implementation

Flores, L. & Barata, J., 1 Jan 2003, In : IEEE International Conference on Emerging Technologies and Factory Automation, ETFA. 1, January, p. 116-120 5 p., 1247696.

Research output: Contribution to journalConference article

Programmable logic controllers
Software engineering
Control systems
Object oriented programming
Systems engineering
2000
5 Citations (Scopus)

Performances of an optical ruler based on one-dimensional hydrogenated amorphous Si position-sensitive detectors produced using different metal contacts

Fortunato, E., Teodoro, P., Silva, V. M. A., Ferreira, I., Nunes, Y., Guimarães, N., Soares, F. M., Giuliani, F., Popovic, G., Brener, W. & Martins, R., 1 Jan 2000, In : Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties. 80, 4, p. 765-774 10 p.

Research output: Contribution to journalConference article

electric contacts
Metals
Detectors
sensors
detectors
1 Citation (Scopus)

VIS/NIR detector based on μc-Si: H p-i-n structures

Fernandes, M., Fantoni, A., Martins, J., Maçarico, A., Schwarz, R. & Vieira, M., 27 Mar 2000, In : THIN SOLID FILMS. 364, 1, p. 204-208 5 p.

Research output: Contribution to journalConference article

Lighting
illumination
Detectors
spectral sensitivity
Glass
1998
11 Citations (Scopus)

New materials for large-area position-sensitive detectors

Fortunato, E. & Martins, R., 15 Jun 1998, In : Sensors and Actuators, A: Physical. 68, 1-3, p. 244-248 5 p.

Research output: Contribution to journalConference article

Detectors
sensors
detectors
Sensors
assembling
17 Citations (Scopus)

New UV-enhanced solar blind optical sensors based on monocrystalline zinc sulphide

Malik, A., Sêco, A., Fortunato, E. & Martins, R., 15 May 1998, In : Sensors and Actuators, A: Physical. 67, 1-3, p. 68-71 4 p.

Research output: Contribution to journalConference article

Zinc sulfide
zinc sulfides
Optical sensors
optical measuring instruments
Photodetectors
3 Citations (Scopus)

Silicon active optical sensors: From functional photodetectors to smart sensors

Malik, A. & Martins, R., 15 Jun 1998, In : Sensors And Actuators A-Physical. 68, 1-3, p. 359-364 6 p.

Research output: Contribution to journalConference article

Smart sensors
Optical sensors
optical measuring instruments
Photodetectors
photometers
6 Citations (Scopus)

Undoped and doped crystalline silicon films obtained by Nd-YAG laser

Ferreira, I., Carvalho, J. F. & Martins, R., 1 Apr 1998, In : THIN SOLID FILMS. 317, 1-2, p. 140-143 4 p.

Research output: Contribution to journalConference article

Silicon
silicon films
shot
Laser beams
YAG lasers
1997
5 Citations (Scopus)
Open Access
Photodiodes
numerical analysis
photodiodes
Numerical analysis
Lighting
1 Citation (Scopus)

UV enhanced and solar blind photodetectors based on large-band-gap materials

Malik, A. & Martins, R., 1997, In : Materials Science Forum. 258-263, 9993, p. 1425-1430 6 p.

Research output: Contribution to journalConference article

Zinc sulfide
Photodetectors
Quantum efficiency
Energy gap
Space applications
1996
1 Citation (Scopus)

Amorphous and microcrystalline silicon p-i-n optical speed sensors based on the flying spot technique

Vieira, M., Fantoni, A., Koynov, S., Cruz, J., Maçarico, A. & Martins, R., 1 Jan 1996, In : Journal of Non-Crystalline Solids. 198-200, PART 2, p. 1193-1197 5 p.

Research output: Contribution to journalConference article

p-i-n junctions
Microcrystalline silicon
Amorphous silicon
amorphous silicon
flight
ITO (semiconductors)
Solar cells
solar cells
Thin films
thin films
1 Citation (Scopus)
ITO (semiconductors)
Solar cells
solar cells
Thin films
thin films
1995
1 Citation (Scopus)

Hydrogenated amorphous silicon speed sensor based on the flying spot technique

Vieira, M., Fantoni, A., Maçarico, A., Soares, F., Evans, G. & Martins, R., 1995, In : MRS Proceedings. 377, p. 839-844 6 p.

Research output: Contribution to journalConference article

Amorphous silicon
Geometry
Sensors
Triangulation
Transport properties
1994

a-Si:H optical speed detector based on the flying spot technique

Vieira, M., Fantoni, A., Maçarico, A., Soares, F. & Martins, R., 1994, In : Proceedings Of The Ieee. 1, p. 571-574 4 p.

Research output: Contribution to journalConference article

flight
Detectors
detectors
ambipolar diffusion
Geometry
Amorphous films
Thin films
Carrier transport
Defect density
Amorphous silicon
Microcrystalline silicon
Transport properties
transport properties
silicon
silicon films
1984

FRAMEWORK FOR THE EVALUATION OF SPECTRAL ANALYSIS TECHNIQUES

Ortigueira, M. D. & Tribolet, J. M., 1 Jan 1984, In : ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 2, p. 22. 7. 1-22. 7. 4

Research output: Contribution to journalConference article