Optical characteristics of barrier discharge plasma based on mixtures of cadmium diiodide vapors with gases

Malinin, A. N.; Polyak, A. V.

doi:10.1134/1.2149415

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…Plasma based on mixtures of cadmium diiodide vapor with inert gases is studied to create a highly efficient coherent and spontaneous (with a large area) source in the red spectral range of radiation for a number of scientific and technological applications [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…In [2][3][4][5][6], it was found that in a barrier discharge in mixtures of cadmium diiodide vapor with inert gases and molecular nitrogen at frequencies of pump pulses of less than or equal to 6000 Hz, intense emission of an exciplex cadmium monoiodide CdI* molecule (transition with a maximum of radiation at wavelength λ = 650 nm) observed . These experiments are limited to studying the plasma emission spectra and the dependences of the radiation intensity of cadmium monoiodide on the partial pressures of helium, neon, and nitrogen at low pulse repetition rates.…”

Section: Introductionmentioning

confidence: 99%

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Emission Characteristics of Gas Discharge Plasma on Mixtures of Cadmium Diodide Vapor, Helium and Xenon

Малинина¹,

Malinin

2020

Problems of Atomic Science and Technology

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The results of studying the spectral, integral, and resource characteristics of gas-discharge plasma radiation on multicomponent mixtures (cadmium diiodide with helium and xenon atoms) are presented. The creation of a gasdischarge plasma and the excitation of the components of the working mixture were carried out by a pulse-periodic (pulse repetition rate of 18…20 kHz, pulse duration ~ 150 ns) barrier discharge. Radiation in the visible spectrum of exciplex molecules of cadmium monoiodide, cadmium atoms, xenon was detected. The regularities in changes in the emission characteristics of the plasma are established depending on the repetition rate of the pump pulses, the component and quantitative composition of the mixtures. Research data is of interest for creating a gas-discharge source that radiates simultaneously in the violet, green, red, and infrared spectral ranges.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Emission Characteristics of Gas Discharge Plasma on Mixtures of Cadmium Diodide Vapor, Helium and Xenon

Малинина¹,

Malinin

2020

Problems of Atomic Science and Technology

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“…Data of this kind make it possible to reveal the features of the plasma radiation spectra of different component composition and to optimize the spectral and energy characteristics of radiation sources [1]. Plasma based on mixtures of cadmium diiodide vapor with inert gases is being investigated in order to create a highly efficient coherent and spontaneous source of selective radiation of exciplex cadmium monoiodide molecules in the red spectral range [2][3][4]. In a gas-discharge plasma on a mixture of cadmium diode vapor with xenon and neon at amospheric pressure, the conditions were revealed under which the excitation and emission of simultaneously exciplex molecules of cadmium monoiodide (CdI *) and xenon iodine (XeI *) with a wavelength at the maximum radiation intensity λ max .…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic diagnostics of a high-frequency dielectric barrier discharge of atmospheric pressure in mixtures of cadmium diiodide vapor with neon and small additions of xenon

Малинина

2020

J. Technol. Space Plasmas

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Diagnostics of the emission spectra of a gas-discharge plasma of a barrier discharge of atmospheric pressure in mixtures of cadmium diiodide vapor with neon and small additions of xenon is carried out. A gas-discharge plasma was created and the components of the working mixture were excited by a high-frequency barrier discharge at a sinusoidal voltage pulse repetition rate of up to 140 kHz. Emission of exciplex molecules of cadmium monoiodide with a maximum emission at a wavelength of λ = 655 nm and xenon iodide with a maximum of radiation at wavelengths λ = 253 and λ = 320 nm, excimer molecules of iodine, lines of atoms of cadmium, iodine, neon and xenon was revealed. It was found that at temperatures of the mixtures under study above 150 0C, the predominance of radiation from exciplex molecules of cadmium monoiodide is observed. The reason for the increased brightness of the emission of exciplex molecules of cadmium monoiodide in mixtures of cadmium diiodide vapor with neon and xenon additive is established. The regularities in the spectral characteristics of radiation in the mixtures under study are discussed. A high-frequency barrier discharge of atmospheric pressure in mixtures of cadmium diiodide vapor with neon and xenon is of interest for creating a multi-wavelength excilamp in the UV and visible spectral ranges

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“…The search for efficient broadband radiation sources on the basis of the emission of excimer and exciplex molecules remains of importance [16,17]. Ideally, a discharge lamp would combine a high discharge efficiency (like the low-pressure mercury discharge lamp has) with the direct production of visible light.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a white-colour DBD-driven cadmium bromide exciplex lamp

Гуйван

Guyvan

2010

Plasma Sources Sci. Technol.

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The emission spectra from an atmospheric-pressure gas-discharge plasma in mixtures of cadmium dibromide vapour with gases (Ne, Ar, Kr, Xe and N 2 ), as well as the temporal characteristics of voltage and current, have been investigated. A dielectric barrier discharge at a repetition frequency of sinusoidal voltage pulses up to 140 kHz was used to create the gas-discharge plasma. The discharge radiation has been analysed in the spectral range 200-900 nm with a resolution of 0.05 nm. In the spectra, the study has revealed radiation from CdBr(B-X, C-X) exciplex molecules, atomic lines of cadmium and rare gases, and in mixtures with xenon, radiation of XeBr(B-X, B-A) exciplex molecules. The most intense CdBr(B-X) radiation was observed in CdBr 2 /Xe mixtures. A discharge radiation of a silvery-white colour was observed when the temperature of the mixture was above 250 • C. The XeBr(B-X) radiation predominated in the spectra at temperatures of the mixture up to 200 • C. A further increase in the temperature resulted in the prevalence of the CdBr(B-X) radiation. Regularities in the spectral characteristics of the radiation from the gas-discharge plasma are discussed. The high-frequency atmospheric-pressure barrier discharge in mixtures of cadmium dibromide with gases can be used in multiwave exciplex lamps, operating in the UV and visible regions.

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Optical characteristics of barrier discharge plasma based on mixtures of cadmium diiodide vapors with gases

Cited by 5 publications

References 5 publications

Emission Characteristics of Gas Discharge Plasma on Mixtures of Cadmium Diodide Vapor, Helium and Xenon

Emission Characteristics of Gas Discharge Plasma on Mixtures of Cadmium Diodide Vapor, Helium and Xenon

Spectroscopic diagnostics of a high-frequency dielectric barrier discharge of atmospheric pressure in mixtures of cadmium diiodide vapor with neon and small additions of xenon

Characterization of a white-colour DBD-driven cadmium bromide exciplex lamp

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