Abstract
A silicon photodiode structure was studied for the spectral analysis of optical radiation. The structure consists of oppositely-directed barriers. We developed a model of the electronic processes occurring in the structure. The possibilities of the selection of separate waves from the integral flux of radiation, the wave absorption and the quantitative spectral analysis of the waves of the model for contaminated environment were investigated. An algorithm was developed for carrying out the spectral analysis without the preliminary calibration, and for promoting a possible creation of a new type of a portable semiconductor spectrophotometer.
Highlights
The environmental crisis, as it relates to interaction between humans and the nature seems to be worsening with the progression of time
The effective solution to the above-stated problems is the development of such a semiconductor structure in which the electronic processes will provide high accuracy spectral analysis of the electromagnetic radiation
The research work covers the modeling of the electronic process of the spectral analysis with the help of an electrically oppositely-directed silicon photodiode structure (Figure 1), and feasibility studies of spectrophotometer of such a process
Summary
The environmental crisis, as it relates to interaction between humans and the nature seems to be worsening with the progression of time. The effective solution to the above-stated problems is the development of such a semiconductor structure in which the electronic processes will provide high accuracy spectral analysis of the electromagnetic radiation. We demonstrate that in such structures, with the help of an appropriate algorithm, it is possible to select and register individual electromagnetic waves and their intensities from the integral flux of radiation by changing the external voltage. This investigation is useful in optical communication, study of microbiological systems, medical objects, and for environmental protection, just to name a few applications [16]-[19]
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