Reversible holographic recording media based on polymeric composites and their use in energy-saving technologies

Давиденко, Н. А.; Давиденко, И. И.; Ishchenko, A. A.; Kulinich, A. V.; Павлов, В. А.; Studzinsky, S. L.; Chuprina, N. G.

doi:10.1364/ao.51.000c48

Cited by 16 publications

(4 citation statements)

References 27 publications

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“…This is utilized in photorefractive materials for modern information technologies and holography. [231][232][233][234] Such composites should be photoconductive and have good optical characteristics and photostability. This set of parameters can be achieved via doping a photoconductive organic material with a chromophore exhibiting high β 0 value, a photosensitizer, and a strong acceptor.…”

Section: Application Of Merocyanines As Light Energy Convertersmentioning

confidence: 99%

“…Thanks to their high value of Δ μ , merocyanines even at low concentrations can significantly modify the refractive index of a medium. This is utilized in photorefractive materials for modern information technologies and holography [231–234] . Such composites should be photoconductive and have good optical characteristics and photostability.…”

Section: Application Of Merocyanines As Light Energy Convertersmentioning

confidence: 99%

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Design and Photonics of Merocyanine Dyes

Kulinich,

Ishchenko

2023

The Chemical Record

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Merocyanines, thanks to their easily adjustable electronic structure, appear to be the most versatile and promising functional dyes. Their D–π–A framework offers ample opportunities for custom design through variations in both donor/acceptor end‐groups and the π‐conjugated polymethine chain, and leads to a broad range of practical properties, including noticeable solvatochromism, high polarizability/hyperpolarizabilities, and the ability to sensitize various physicochemical processes. Accordingly, merocyanines are applied and extensively studied in various fields, such as light‐converting materials for optoelectronics, nonlinear optics, optical storage, solar cells, fluorescent probes, and antitumor agents in photodynamic therapy. This review encompasses both classical and novel more important publications on the structure–property relationships in merocyanines, with particular emphasis on the results by A. I. Kiprianov and his followers in Institute of Organic Chemistry in Kyiv, Ukraine.

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Section: Application Of Merocyanines As Light Energy Convertersmentioning

confidence: 99%

Section: Application Of Merocyanines As Light Energy Convertersmentioning

confidence: 99%

Design and Photonics of Merocyanine Dyes

Kulinich,

Ishchenko

2023

The Chemical Record

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“…Однако такие слои не могут использоваться в качестве фототермопластических регистрирующих сред в силу их низких термопластических свойств. Фототермопластические слои на основе карбазол-(LXXII) и ферроценил-(LXXIII) содержащих олигоме-ров совместно со скварилиевыми LXXIV или мероци-аниновыми LXXV красителями, используемыми в ка-честве сенсибилизаторов, могут успешно применяться t, ms в голографических интерферометрических устройствах для определения остаточных напряжений, недеструктив-ного испытания частей машин и самих машин, изучения явлений транспорта частиц в жидкостях и для других применений [201]. Исследование голографических свойств новых компо-зитных фототермопластических материалов на основе сополимеров LXXVI−LXXVIII, содержащих нафтиль-ные и другие фрагменты, и фотосенсибилизатора LXXIX показало, что величина ДЭ плоских голограмм, до-стигающая 10%, зависит от температуры стеклования регистрирующего полимерного слоя и донорных свойств фрагментов [202].…”

Section: фототермопластикиunclassified

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Барачевский¹

2018

Журнал Технической Физики

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“…Along with inorganic semiconductors it seems to be attractive to use organic oligomers and based on them compositions (OC) [1][2][3][4][5][6][7]. These OC were tested in the holographic recording media (HRM) for the photothermoplastic technique (PTT) of information recording [8].…”

Section: Introductionmentioning

confidence: 99%

Holographic Recording Media Based on Electrons Donor Oligomers

Давиденко¹,

Давиденко²,

Chuprina³

et al. 2014

ChemJMold

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Abstract. Information properties of the recording media for photothermoplastic technique with the fi lms of oligomer composites based on carbazole containing cooligomers of linear and radial structures with branching center on silicon atoms are investigated. It was ascertained that the media based on the radial oligomers possess higher holographic sensitivity due to higher plasticity and ability to accumulate volume electric charge during the exposure. Examples of practical application of the investigated recording media are presented.Keywords: carbazole, oligomer, photothermoplastic, holographic recording. IntroductionDevelopment of the new materials possessing photoconductivity in the visible and near IR parts of spectrum is very actual question for their practical applications in the equipment for recording, storage and processing of optical information. Along with inorganic semiconductors it seems to be attractive to use organic oligomers and based on them compositions (OC) [1][2][3][4][5][6][7]. These OC were tested in the holographic recording media (HRM) for the photothermoplastic technique (PTT) of information recording [8]. HRM for PTT holographic recording have to possess following characteristics: low electric conductivity; high absorption coeffi cient close to the irradiation maximum of used light sources; high quantum yield of photogeneration of charge carriers; high mobility of non-equilibrium charge carriers. Basically, photoconductivity of the OC fi lms is provided by presence of the molecules of three types: donors, acceptors and centers of photogeneration of charge carriers [8, 9]. Absorption of light quantum occurs in the photogeneration center resulting in its transition from the ground state into excited one. The dye molecules, the molecules of organic compounds with intramolecular charge transfer, the intermolecular complexes with charge transfer (ССT) [9, 10] can be considered as such centers. The excited state of the photogeneration center is characterized by empty limit orbitals, notably by presence of one electron on the high occupied molecular orbital (HOMO) and one electron on low unoccupied molecular orbital (LUMO). Photogeneration of charge carriers happens as the result of intermolecular electron transitions. Electron can transit from LUMO of the excited photogeneration center into LUMO of the molecule with electron acceptor properties. Electron from valent orbital of the molecule with electron donor properties can transit to empty HOMO of the photogeneration center. If the ionization potential of the electron donor molecules is I gd (HOMO energy is proportional to this one) and affi nity energy of the acceptor molecules is A ea [11] (LUMO energy is proportional to this one), then the molecules of photogeneration centers are chosen to satisfy the conditions |I gc |>|I gd |, |A ec |<|A ea |, where I gc and A ec are respectively ionization potential and affi nity energy of the molecule of photogeneration centre. These conditions determine formation of electron -hole pair (EHP) in th...

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Reversible holographic recording media based on polymeric composites and their use in energy-saving technologies

Cited by 16 publications

References 27 publications

Design and Photonics of Merocyanine Dyes

Design and Photonics of Merocyanine Dyes

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Holographic Recording Media Based on Electrons Donor Oligomers

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