Analysis of New Opotoelectronic Device for Detection of Heavy Metals in Corroded Soils: Design a Novel Optoelectronic Devices

Analysis of New Opotoelectronic Device for Detection of Heavy Metals in Corroded Soils: Design a Novel Optoelectronic Devices

Gustavo Lopez Badilla (Universidad Politecnica de Baja California, Mexico) and Juan Manuel Terrazas Gaynor (CETYS University, Mexico)
Copyright: © 2017 |Pages: 30
DOI: 10.4018/978-1-5225-0632-4.ch009
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Abstract

This study was made to design and an analysis the purpose of novel optoelectronic sensor, with three steps, being the first the use of MatLab software to simulate with a mathematical equation, the operation of the sensor as the electrical conductivity. Other step, was the evaluations with Wein2k using the Density of States (DOS) Theory, as a computational system of the physicochemical, to analyze different materials used, to fabricate the novel sensor, being the material proposed the Gallium Nitride (GaN), in according to the electrical conductivity, and was obtained, to fabricate this type of material with the Chemical Vapor Deposition (CVD) and then was made some evaluations to validate this material. Also was made a microanalysis with the Scanning Electron Microscopy (SEM) to evaluate the metallic surfaces of the electrical connections at micro scale.
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Introduction

One of factors used to design and evaluate the new sensor based in the chromatic systems, with rods and cones and tetrachromatic systems. This is the same function of the electronic optocouplers that are very used in industrial activities, scientific research, medicine activities and biology, and also in chemical and physical operations (Mendenhall, et al, 2007; O’Regan et al, 2015). An area which it has been of great interest in the last ten years is the microbiology by the presence of microorganisms in soils, because of heavy metals of chemical substances of the electronics industry. The action of pouring liquid or solid substances to soil generates a deterioration of soils. The damage of soils generates the growth and reproduction of microorganisms that results in a reduction in green areas and they cannot be used to any type of activities, in essential in the agricultural operations to produce food to the populations in the world. The reduction of soils to produce food causes that more populations in development countries suffers from hungry (N. G. et al, 2011; Peña et al, 2007). The recovery actions of soils are made by microorganisms that eliminate these heavy metals. To determine the HM is necessary an optocoupler very sensitive to put the necessary quantity of microorganisms to break down these heavy metals in soils corroded (Girit, et al, 2012; Ju, et al, 2010). The basic electronic devices as transistors, were utilized as macro devices as showed in Figure 1 as a first step to fabricate the new sensor. The use of optoelectronics devices to detect the microorganisms and monitoring which are detected the heavy metals that are the great interesting of ecologists to restore soils.

Figure 1.

Electronic diagram of a microdevice used an electronic optocoupler

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