Transmission of signals using white LEDs for VLC applications

P Louro, V Silva, I Rodrigues, MA Vieira… - Materials Today …, 2016 - Elsevier
In this paper an integrated wavelength optical filter and photodetector for Visible Light
Communication (VLC) is used. The proposed application uses indoor warm light lamps …

Self-biasing effect in colour sensitive photodiodes based on double pin a-SiC: H heterojunctions

M Vieira, A Fantoni, P Louro, M Fernandes, R Schwarz… - Vacuum, 2008 - Elsevier
A large area colour imager optically addressed is presented. The colour imager consists of a
thin wide band gap pin a-SiC: H filtering element deposited on the top of a thick large area a …

Image and color sensitive detector based on double pin/pin a-SiC: H photodiode

M Vieira, M Fernandes, P Louro, A Fantoni… - MRS Online …, 2005 - cambridge.org
A two terminal image and color sensitive detector based on two stacked sensing/switching
pin a-SiC: H diodes is presented. The imaging is performed in a write-read simultaneous …

An amorphous SIC/SI image photodetector with voltage-selectable spectral response

P Louro, M Fernandes, A Fantoni, G Lavareda… - Thin Solid Films, 2006 - Elsevier
The sensitive devices are multilayer stacked structures p–i–n/p–i–n based on a-SiC: H and a-
Si: H between two transparent conductive contacts. The thickness and the absorption …

Bias sensitive multispectral structures for imaging applications

M Vieira, A Fantoni, M Fernandes, P Louro, G Lavareda… - Thin Solid Films, 2007 - Elsevier
In this paper we present results on the optimization of an pinpii 'n'type a-Si: H based three
color detector with voltage controlled spectral sensitivity. The sensor element was fabricated …

[PDF][PDF] Sinterização via fase líquida de cerâmicas à base de carbeto de silício com aditivos óxidos utilizando planejamento de experimentos

J Marchi - Instituto de Pesquisas Energéticas e Nucleares. São …, 2003 - repositorio.ipen.br
Carbeto de siHcio é considerado um dos materiais cerâmicos estruturais mais importantes,
devido a sua utihzação em várias aplicações, tais como abrasivos, refratários, componentes …

Optically addressed read–write device based on tandem heterostructure

M Vieira, M Fernandes, A Fantoni, P Louro… - Journal of non …, 2004 - Elsevier
An optically addressed read–write sensor based on two stacked p–i–n heterojunctions is
analyzed. The device is a two terminal image sensing structure. The charge packets are …

Spice model for a laser scanned photodiode tricolor image sensor

J Martins, M Fernandes, A Fantoni, M Vieira - Journal of non-crystalline …, 2006 - Elsevier
A SPICE model of the three color a-SiC: H/a-Si: H p–i–n/p–i–n detector operation is
presented. The equivalent electric circuit able to describe the behavior of the multilayer …

A two terminal optical signal and image processing p–i–n/p–i–n image and colour sensor

M Vieira, M Fernandes, P Louro, A Fantoni… - Sensors and Actuators A …, 2005 - Elsevier
A two terminal optically addressed image processing device based on two stacked
sensing/switching p–i–n a-SiC: H diodes is presented. The charge packets are injected …

p–i–n flexible imaging devices with optical readout

P Louro, M Vieira, M Fernandes, M Schubert - Optical Materials, 2005 - Elsevier
Large area two terminal p–i–n image sensors deposited on plastic substrates were
produced at low temperatures (110° C) by PE-CVD and compared with similar sensors …