Modeling of a New Type of an Optoelectronic Biosensor for the Monitoring of the Environment and the Food Products

Khudaverdyan, Surik; Petrosyan, O. G.; Dokholyan, Janna; Khudaverdyan, D.; Tsaturyan, Stepan

doi:10.1007/978-94-007-2488-4_17

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…Khudaverdyan et al [19] obtained an expression for the drift currents gener- Taking into consideration Equations (8), (9) and (7), the expression for the total current flowing through the structure is: At normal functioning, the term that contains n p0 is much smaller than the first term. Thus, it may be neglected, and Equation (10) is:…”

Section: Device Structurementioning

confidence: 99%

“…Using algorithm described below, it is possible to register a separate wavelength λ i and its intensity by In the present investigation, we used the AM0 spectral distribution for Si using radiation of LED (L-813SRC-J4) with a dominant wavelength 660 nm and a laser with the radiation wavelength of 530 nm. Since, with increase of the bias voltage, the registration region of the rear barrier widens towards the surface [19] [20], it allows us to carry out the sequential registration of the waves from depth to the surface.…”

Section: Device Structurementioning

confidence: 99%

See 1 more Smart Citation

Identification and Analysis of Hazardous Materials Using Optical Spectroscopy

Khudaverdyan¹,

Meliqyan²,

Hovhannisyan³

et al. 2017

OPJ

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This investigation is aimed towards using optical spectroscopy for remote identification and quantitative analysis of hazardous substances for safety and security applications. We introduce a new model employing portable photosensor devices that are based on the double-barrier and vertically placed silicon structure, for such applications. The different absorption depths of individual waves allow us to carry out their spectral selection using an algorithm developed for this specific objective. We tested the proposed model on experimental Ag-p-Sin -Si structures. The algorithm is developed for the spectral analysis without the preliminary calibration. The low dark currents (several dozens of pA) permit us to carry out the spectral analysis of the integral flux of the electromagnetic radiation of low intensity. The quantitative data from light current-voltage characteristics allow us to obtain an intensity distribution spectrum characteristic of the material by using red LED and the green laser. The results of this investigation divulge new possibilities for the creation of a new type of the portable semiconductor spectrophotometer and due to its stand-off detection capability, offer potential pathways to evaluate hazardous substances.

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Section: Device Structurementioning

confidence: 99%

Section: Device Structurementioning

confidence: 99%

Identification and Analysis of Hazardous Materials Using Optical Spectroscopy

Khudaverdyan¹,

Meliqyan²,

Hovhannisyan³

et al. 2017

OPJ

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“…Based on the above mentioned techniques it was developed a structure with two oppositely directed potential barriers, the total current conditioned by these barriers depended on both, the external voltage and the wavelength of the absorbed radiation. A modification in these parameters resulted in the obtaining of high-accuracy data of aflatoxins contaminants in food and provender in natural conditions [51].…”

Section: Optoelectronicmentioning

confidence: 99%

Characteristics of Mycotoxin Analysis Tools for Tomorrow

Contreras-Medina¹,

Espinosa-Calderón²,

Galvan³

et al. 2013

Aflatoxins - Recent Advances and Future Prospects

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“…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 also useful in optical communication, study of microbiological systems, medical objects, and for environmental protection, just to name a few applications [16]- [19].…”

Section: Introductionmentioning

confidence: 99%

On the Model of Spectral Analysis of Optical Radiation

Khudaverdyan¹,

Hovhannisyan²,

Meliqyan³

et al. 2016

JEMAA

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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.

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Modeling of a New Type of an Optoelectronic Biosensor for the Monitoring of the Environment and the Food Products

Cited by 4 publications

References 5 publications

Identification and Analysis of Hazardous Materials Using Optical Spectroscopy

Identification and Analysis of Hazardous Materials Using Optical Spectroscopy

Characteristics of Mycotoxin Analysis Tools for Tomorrow

On the Model of Spectral Analysis of Optical Radiation

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