Luminescent Properties of Polyethylene Films with the Addition of Photoluminophores Based on Europium Compounds

Raida, V. S.; Koval, E. O.; Иваницкий, А. Е.; Andrienko, O. S.; Толстиков, Г. А.

doi:10.1177/0307174x0202901111

Cited by 3 publications

(5 citation statements)

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“…Productivity increases up to 100% for plants in greenhouses have been reported after the use of polymer films with these additives. The faster growth and development of plants under such films is known as the Polysvetan effect , − which is thought to be caused by the effect of low-intensity red luminescent radiation on the plant hormonal balance . Examples of europium(III)-containing dopants for polymer films are Y 2 O 2 S/Eu 3+ , − Y 2 O 3 /Eu 3+ , and Eu(phen) 2 (NO 3 ) 3 .…”

Section: Applicationsmentioning

confidence: 99%

Lanthanide-Based Luminescent Hybrid Materials

2009

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Koen Binnemans was born in Geel, Belgium, in 1970. He obtained his M. Sc. degree (1992) and Ph.D. degree (1996) in Chemistry at the Catholic University of Leuven, under the supervision of Prof. C. Go ¨rller-Walrand. In the period 1999-2005, he was a postdoctoral fellow of the Fund for Scientific Research Flanders (Belgium). He did postdoctoral work with Prof. Jacques Lucas (Rennes, France) and Prof. Duncan W. Bruce (Exeter, U.K.). In 2000, he received the first ERES Junior Award (ERES, European Rare-Earth and Actinide Society). From 2002 until 2005, he was (parttime) associate professor. Presently, he is professor of chemistry at the Catholic University of Leuven. His current research interests are metalcontaining liquid crystals (metallomesogens), lanthanide-mediated organic reactions, lanthanide spectroscopy, luminescent molecular materials, and ionic liquids.

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Section: Applicationsmentioning

confidence: 99%

Lanthanide-Based Luminescent Hybrid Materials

2009

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“…The angular dependence of the reflectance of the layer. The treatment of the angular dependence is based on the ratio of ( 13) - (16).…”

Section: Resultsmentioning

confidence: 99%

“…To save power of natural light spectrum correction it were used fluorescent polymer films and coatings containing powdered phosphors in some way combined with the polymer matrix [15,16]. This materials has been characterized by a high degree of opacity, caused by non-specific absorption, scattering and reflection of sunlight.…”

Section: Methodsmentioning

confidence: 99%

“…It was found that positive effects can be obtained when light conversion coefficients is part of percent. In this case the characteristic values of the intensity of the secondary radiation are pretty small and ranging from 2-5 mW/m 2 up to a few tens of mW/m 2 [20,21]. The excitation spectra are almost the same like excitation spectra of original phosphor The excitation spectra is not much different from those of the excitation source and the phosphor and light conversion effect is small and commensurate with the level of noise.…”

Section: Methodsmentioning

confidence: 99%

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Features of Light Conversion Process with Covering Materials Containing Quantum Dots and their Application in Agriculture

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Sherstneva

Koryakin

et al. 2017

NHC

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Improving the efficiency of greenhouses is one of the most promising directions in development of agriculture. New perspectives in this field opened up with the development of the new methods of synthesis of a new generation of photoluminescent materials based on colloidal semiconductor photoluminophores (so-called "quantum dots"). It is shown that use of the covering materials containing quantum dots can significantly increase yields. Moreover, introduction of these quantum dots into commercial production can significantly improve the mechanical properties of the covering films used for greenhouses and slow down the process of their destruction. The durability of greenhouse films increases from 1 to 3 years.

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“…The use of light-correcting coatings is a promising method of increasing crop yields [1,2]. The influence of coatings on the development of plants is associated with a change in the spectral composition of the electromagnetic radiation of the sun passing through them -the absorption of the ultraviolet component and its transformation into the red region of the spectrum [3]. At the same time, there is a change in the structure of membranes, their permeability increases, contributing to an increase in the effectiveness of cytokinins and gibberellins, leading to increased cell division.…”

Section: Introductionmentioning

confidence: 99%

Effect of light-converting coatings on the growth of Sarepta mustard (Brassica juncea L.) plants colonized by associative microorganisms

et al. 2022

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The effect of colonization by beneficial associative microorganisms Pseudomonas putida KT 2442 and Rhodococcus erythropolis X5 on the growth of Sarepta mustard (Brassica juncea L.) under a covering light-converting material containing organic photoluminophore, in vitro and in vivo, was investigated. The combined use of microbial colonization and photoluminophore coating led to stimulation of plant growth much stronger (2.4 times more) than separately only photoluminophoric coating (1.3 times) or colonization (2.1 times). These data indicate that when covering materials with photoluminophores are used in agrobiotechnologies, luminescent red light (610-730 nm) induces an increase in biochemical processes not only in plants, but also in microorganisms that supply plants with growth regulators and other useful metabolites. The data obtained are relevant for further study of the photobiological mechanisms of interactions between the plant-microorganism system in agrobiotechnologies.

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Luminescent Properties of Polyethylene Films with the Addition of Photoluminophores Based on Europium Compounds

Cited by 3 publications

References 1 publication

Lanthanide-Based Luminescent Hybrid Materials

Lanthanide-Based Luminescent Hybrid Materials

Features of Light Conversion Process with Covering Materials Containing Quantum Dots and their Application in Agriculture

Effect of light-converting coatings on the growth of Sarepta mustard (Brassica juncea L.) plants colonized by associative microorganisms

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