Introductory Chapter: Why the Study of Fullerenes is so Important?

Каманина, Н. В.

doi:10.5772/intechopen.74812

Cited by 4 publications

(6 citation statements)

References 26 publications

(25 reference statements)

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“…Kamanina highlights that there are two reasons for the importance of fullerenes: their unique energy levels and high value of electron affinity energy (0.65-0.7 eV). This value is larger than the one for most dyes and organic molecules with intramolecular acceptor fragment and can stimulate the efficient intermolecular charge transfer complex formation in the fullerene-doped organic conjugated materials [94].…”

Section: Synthesis Of the Nonlinear Optical Fullerenesmentioning

confidence: 79%

Synthesis and Nonlinear Optical Studies on Organic Compounds in Laser-Deposited Films

Marinescu¹

2019

Applied Surface Science

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Organic semiconductors as active materials in thin-film electronic devices such as alkynes, heterocycles, dyes, ferrocenes, spiranes, or porphyrins, with special geometries and certain electronic molecular parameters, which possess nonlinear optical (NLO) properties and offer several major advantages over their inorganic counterparts, are presented in this chapter. There are a number of simple and versatile techniques that can be employed for the deposition of these important classes of materials. The matrix-assisted pulsed laser evaporation (MAPLE) technique provides advantages with regard to making organic films of different morphologies on different types of substrates. New insights into the crystallization growth mechanisms in MAPLE-deposited conjugated polymer films, which realize the connection between the structure and the carrier transport properties, are discussed herein. Second harmonic generation (SHG) capabilities of the thin films were also investigated.

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Section: Synthesis Of the Nonlinear Optical Fullerenesmentioning

confidence: 79%

Synthesis and Nonlinear Optical Studies on Organic Compounds in Laser-Deposited Films

Marinescu¹

2019

Applied Surface Science

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“…results have been discussed in Vincha Institute (Belgrade, Serbia) on 2017 and they have been visualized as the Plenary Lectures in Cluster conferences (Ivanovo, Russian Federation) on 2016, 2018, 2021 and in Nanotechnology section in Ariel University (2008, 2010, 2012. The presented here results are coincided with the main research directions of the Lab for Photophysics of media with nanoobjects (Vavilov State Optical Institute) and they are the some analysis of the part of a work supported partially by Russian Foundation for Basic Research, grants No.10-03-00916 (2010-2012), No.…”

Section: Discussionmentioning

confidence: 99%

“…The effective operation of the LC-SLM is connected with some geometric (constructions, scheme to activate the devices by the external fields) and with the physical-chemical parameters, which regarded not only to the specific native parameters of the modulators, but also depended on the modifications, for example, via nano-structuring of the interface, photo layer or modulating compound [9,13,[28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] . So, it should be clarified why the study of the parameters of the classical or modified SLMs is so important?…”

Section: Introductionmentioning

confidence: 99%

Nano-structuration influence on the polyimide-based spatial light modulator’s parameters

Kamanina

2024

Appl. Chem. Eng.

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The classical and the nano-structured spatial light modulators (SLMs) especially based on the polyimide photosensitive layers, as the key element of the optoelectronic devices, display, and telecommunications schemes are considered. The main emphasis is placed on the device with a polyimide photo-layer due to its high sensitivity and acceptable performance. A modulator’s basic characteristics are studied taken into account the comparison with the different types of the photo-layers, such as: ZnSe, ZnS, a-Si:H. Liquid crystal (LC) media is considered as the modulation system. It is indicated that the different methods and approaches are applied for investigation of the basic SLM parameters, such as: Z-scanning technique, third harmonic generation, four-wave mixing set-up, etc. In the current paper the laser holographic technique is used to investigate the resolution, sensitivity, and speed of the LC-SLM devices. The influence of the fullerene doping on the organic photo-layers based on the polyimide materials is presented. This influence of this nano-structuration process on the modulator’s basic parameters is discussed.

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“…It should be mentioned once again that some nanoparticles are provoked to form the relief as novel coatings [80][81][82][83][84], which are useful not only for general optoelectronics but for biomedicine and biotechnology. Classical optoelectronic materials and natural ones were considered as the substrates for the perspective coatings, which influence the basic material properties as well.…”

Section: Surface Relief Influence On the Physical-chemical Parameters...mentioning

confidence: 99%

Refractive Properties of Conjugated Organic Materials Doped with Fullerenes and Other Carbon-Based Nano-Objects

Каманина

2023

Polymers

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Due to the high demand for optoelectronics for use in new materials and processes, as well as the search for their modeling properties, the expansion of the functionality of modified materials using nanotechnology methods is relevant and timely. In the current paper, a specific nanotechnology approach is shown to increase the refractive and photoconductive parameters of the organic conjugated materials. The sensitization process, along with laser treatment, are presented in order to improve the basic physical–chemical properties of laser, solar energy, and general photonics materials. Effective nanoparticles, such as fullerenes, shungites, reduced graphene oxides, carbon nanotubes, etc., are used in order to obtain the bathochromic shift, increase the laser-induced change in the refractive index, and amplify the charge carrier mobility of the model matrix organics sensitized with these nanoparticles. The four-wave mixing technique is applied to test the main refractive characteristics of the studied materials. Volt–current measurements are used to estimate the increased charge carrier mobility. The areas of application for the modified nanostructured plastic matrixes are discussed and extended, while also taking into account the surface relief.

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Introductory Chapter: Why the Study of Fullerenes is so Important?

Cited by 4 publications

References 26 publications

Synthesis and Nonlinear Optical Studies on Organic Compounds in Laser-Deposited Films

Synthesis and Nonlinear Optical Studies on Organic Compounds in Laser-Deposited Films

Nano-structuration influence on the polyimide-based spatial light modulator’s parameters

Refractive Properties of Conjugated Organic Materials Doped with Fullerenes and Other Carbon-Based Nano-Objects

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