Mr. André Albino Profile

André Albino

at Univ de Évora

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Proceedings Article | 18 October 2016 Presentation + Paper

Modelling and studies of the spectral response of some optoelectronic components

André Albino, Daniele Bortoli, Mouhaydine Tlemçani, António Joyce

Proceedings Volume 10005, 1000505 (2016) https://doi.org/10.1117/12.2242024

KEYWORDS: Sensors, Solar radiation, Mathematical modeling, Optoelectronics, Optoelectronic devices, Modeling, Solar radiation models, Thermoelectric materials, Absorption, Photodiodes

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Solar radiation takes in today's world, an increasing importance. Different devices are used to carry out spectral and integrated measurements of solar radiation. Thus the sensors can be divided into the fallow types: Calorimetric, Thermomechanical, Thermoelectric and Photoelectric. The first three categories are based on components converting the radiation to temperature (or heat) and then into electrical quantity. On the other hand, the photoelectric sensors are based on semiconductor or optoelectronic elements that when irradiated change their impedance or generate a measurable electric signal. The response function of the sensor element depends not only on the intensity of the radiation but also on its wavelengths. The radiation sensors most widely used fit in the first categories, but thanks to the reduction in manufacturing costs and to the increased integration of electronic systems, the use of the photoelectric-type sensors became more interesting. In this work we present a study of the behavior of different optoelectronic sensor elements. It is intended to verify the static response of the elements to the incident radiation. We study the optoelectronic elements using mathematical models that best fit their response as a function of wavelength. As an input to the model, the solar radiation values are generated with a radiative transfer model. We present a modeling of the spectral response sensors of other types in order to compare the behavior of optoelectronic elements with other sensors currently in use.

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