Temperature dependence of photo-induced birefringence in azo-doped polymers containing different substitutions

Pan, Lingyun; Yang, Qingxin; Jin, Ming; Sun, Genban; Jiang, Zhankui

doi:10.1088/0022-3727/37/7/008

Cited by 11 publications

(4 citation statements)

References 23 publications

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“…The specific response of azo-dyes to visible light makes them perfect candidates for the development of a broad kind of optical devices. The addition of these azo-dyes chromophores into different polymers allows the development of new materials with applications to waveguides, optical memories, optical information storage and optical processing devices [1][2][3][4][5][6][7]. In all cases, the characteristic photoisomerization process of azo-dyes plays a prominent role.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes

Costanzo

Ribba

Goyanes

et al. 2014

J. Phys. D: Appl. Phys.

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A new biodegradable photoresponsive material was developed using poly(lactic acid) (PLA) as the matrix material and Disperse Orange 3 (DO3) as photoisomerizable azo-dye. It was observed that the addition of multi-walled carbon nanotubes (MWCNTs) leads to a new phenomenon consisting of an enhancement of the optical anisotropy in a wide range of temperatures. In particular, the optical anisotropy increases 100% at room temperature. Moreover, the material containing MWCNTs shows a faster optical response that is evidenced as an increase in the growth rate of optical anisotropy. Spectroscopic data is provided to study the interaction among DO3, MWCNTs and PLA. The enhancement of optical anisotropy obtained with the addition of MWCNTs was related to the glass transition temperature (T g ) of each material. Maximum optical anisotropy was obtained 15 • C below the T g for both materials. Results are interpreted in terms of the interactions among DO3, MWCNTs and PLA and the packing density of the dye into the polymer chains.

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Section: Introductionmentioning

confidence: 99%

Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes

Costanzo

Ribba

Goyanes

et al. 2014

J. Phys. D: Appl. Phys.

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“…In other applications, such as light modulators, optical storage discs, and phase retardation films, the polymer layer must display a considerable level of birefringence [ 10 , 11 ]. The latter might be induced by chain orientation via electrical forces [ 10 ], magnetic fields [ 12 ], polarized radiations exposure [ 13 ], acoustic waves [ 14 ], and mechanical forces [ 15 , 16 ]. The generation of optical birefringence in polymers by means of electric or magnetic fields is limited to materials that contain conductive or magnetic phases.…”

Section: Introductionmentioning

confidence: 99%

Review on Optical Methods Used to Characterize the Linear Birefringence of Polymer Materials for Various Applications

et al. 2023

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Optical polymers are recognized for their high transparency, raised flexibility, low cost, and good film-forming ability; hence, they introduce a multitude of benefits in a wide range of devices, such as information storage, displays, optical communications, and filters. Among the optical properties, birefringence is an essential parameter in practical cases that demand the control of the state of polarization of light. This review is focused on describing some fundamental and applicative aspects concerning the optical birefringence of the polymer materials. First, elementary notions depicting the phenomenon of light double refraction in macromolecular media are provided. Furthermore, the most relevant optical techniques to determine birefringence are reviewed by highlighting the working principle and mathematical basis for computing this parameter. Then, a series of investigations of optically birefringent polymers are described, summarizing the most utilized approaches to induce light double refraction in such materials. The selected results are analyzed in relation to the pursued applications. In the end, the future of this scientific domain is briefly presented by establishing the research paths that need further exploration. Moreover, the novel directions that could be formulated and might contribute to certain considerable advancements in the materials employed in the modern optical technologies are mentioned.

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“…It is known, PC containing azo dyes based on the 8hydroxyquinoline have the photo induced optical anisotropy [15][16][17][18][19][20][21]. But, the electro-optical properties of PC containing of this dyes are not investigated to this day.…”

Section: Introductionmentioning

confidence: 99%

“…1. The azo dyes syntheses were prepared according to method [18]. The structures of the azo dyes were confirmed by the data of NMR-spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Some features of electro-optical properties of polymeric compositions doped with 8-hydroxyquinoline based azodyes and their cobalt complexes

Davidenko¹,

Давиденко²,

Savchenko³

et al. 2014

AIP Conference Proceedings

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Articles you may be interested inBroadband terahertz characterization of the refractive index and absorption of some important polymeric and organic electro-optic materials J. Appl. Phys. 109, 043505 (2011); 10.1063/1.3549120 Magnetism in Co-doped tris-8-hydroxyquinoline aluminum studied by first-principles calculations Appl. Phys. Lett. 96, 053304 (2010);Abstract. Polymeric composites based on the copolymer butyl methacrylate: nonyl methacrylate (3:1) doped 8hydroxyquinoline azo dyes with donor and acceptor substitutes and their complexes with cobalt are obtained. The influence of the external electric field on the polymeric films transmission of linear polarized light in the long-wave part of the azo dyes absorption range, (corresponding !!* azo fragments absorption range) and their metal complexes are observed. The influence of the electric field on the transmission is connected with the aligning forces for dipole moments of azobenzene groups and metal ions.

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Temperature dependence of photo-induced birefringence in azo-doped polymers containing different substitutions

Cited by 11 publications

References 23 publications

Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes

Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes

Review on Optical Methods Used to Characterize the Linear Birefringence of Polymer Materials for Various Applications

Some features of electro-optical properties of polymeric compositions doped with 8-hydroxyquinoline based azodyes and their cobalt complexes

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