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Polymer light emitting devices with Langmuir Blodgett (LB) films of a polyfluorene derivative
(2005-12-01)
Polyfluorenes are promising materials for the emitting layer of polymer light emitting devices (PLEDs) with blue emission. In this work, we report on PLEDs fabricated with Langmuir-Blodgett (LB) films of a polyfluorene ...
Image analysis for studying the behaviour of broilers exposed to artificial LED lighting
(2015-01-01)
The photoperiod length and the type of light may influence both growth and behaviour of reared birds. The aim of this study was to evaluate broilers' behaviour when exposed to different LED colours. The study was carried ...
Background interference on the color of dental composite materials with different thickness by digital contrast
(2007-08-31)
In this work the color dependence of resin composites with the background color was evaluated. The objective was to measure since what thickness the color of the sample stops being influenced by the color of the background ...
Photo-oxidation of polyphenylenevinylene chains in Langmuir-Blodgett and cast films
(2005-12-01)
Poly(p-phenylene vinylene) (PPV) derivatives are well known for their applications in polymer light emitting diodes (PLEDs). These derivatives are highly susceptible to photooxidation though, which is mainly caused by the ...
Profilometry of semiconductor components by two-colour holography with Bi12TiO20 crystals
(2009-09-14)
We studied the shape measurement of semiconductor components by holography with photorefractive Bi12TiO20 crystal as holographic medium and two diode lasers emitting in the red region as light sources. By properly tuning ...
Enhanced multi-wavelength holographic profilometry by laser mode selection
(2006-10-19)
The application of multi-wavelength holography for surface shape measurement is presented. In our holographic setup a Bi12TiO 20 (BTO) photorefractive crystal was the holographic recording medium and a multimode diode laser ...
Technique for application of hi-bright LED in automobile industry through intelligent systems
(Institute of Electrical and Electronics Engineers (IEEE), 2002-01-01)
The advantages offered by the electronic component LED (Light Emitting Diode) have caused a quick and wide application of this device in replacement of incandescent lights. However, in its combined application, the ...
Technique for application of Hi-bright LED in automobile industry through intelligent systems
(2002-01-01)
The advantages offered by the electronic component LED (Light Emitting Diode) have caused a quick and wide application of this device in replacement of incandescent lights. However, in its combined application, the ...
Modeling of optoelectronic devices through neuro-fuzzy architectures
(2004-01-01)
The advantages offered by the electronic component LED (Light Emitting Diode) have caused a quick and wide application of this device in replacement of incandescent lights. However, in its combined application, the ...