This page contains list of freely available ebooks, online textbooks and tutorials in polymer chemistry. This work and the related pdf file are licensed under a creative commons attribution 4. Fullcolor magnetic nanoparticles based on holmiumdoped. Wavelengthconverted waveguiding in dyedoped polymer. Investigation of nonionic diazo dyedoped polymer dispersed. Pdf on jul 1, 2019, k j tahir and others published study optical properties of r6g dye doped in polymer pva find, read and cite all the. Abstract the main approaches to molecular engineering of prospective dye. Nearinfrared fluorescent dyedoped semiconducting polymer. Dyedoped polymer dispersed liquid crystal films for flexible. Pdf optical properties characterization of celestin blue b dye.
Study of nonlinear optical properties of disperse yellow 7 dye. We welcome submissions on polymer hybrids, nanocomposites, characterisation and selfassembly. Dyedoped pqpmma phase holographic materials for dfb. Azo dyedoped photorefractive polymers, proceedings of. The transition from incoherent to coherent random laser in. Check our section of free ebooks and guides on polymer chemistry now. This chapter describes, various polymerization techniques and synthesis of dye doped polymer rods and films. After chemical doping with i 2 a strong increase in the conductivity is observed.
The coordination of ho, a lanthanide with low colorability and a strong magnetic moment, with a poly2acetoacetoxy ethyl methacrylate brush built on the surface of. Polymers free fulltext whitelight emission of dyedoped. Longrange surface plasmon polariton active structures. Electrospun polymer fibers represent an interesting type of such microscopic structures that can be employed in. Dyedoped polymer dispersed liquid crystal films for. Fabrication of dye doped polymer composite and specific resistance aditya bhagat 1, rutwesh shirbhate 1, fastin telare 1, mayank pandey 2, moumita khutia 2, pankaj tambe 1, kalim deshmukh 3, girish m. The density of phonon states weighted by the electronphonon coupling coefficient has been determined, for the first time for a dyepolymer system, from the. Joshi 2 1school of mechanical and building sciences. Molecular engineering of dyedoped polymers for optoelectronics. Material gain concentration quenching in organic dyedoped. The transmission of bcp was above 85% in the range of 550900 nm. Dyedoped pqpmma phase holographic materials for dfb lasing y gritsai1, o sakhno2, l m goldenberg3 and j stumpe1,2 1 institute of thin film technology and microsensorics, kantstra. However, at relatively high dye content, the polymer chain cannot e.
The first polymerhostdye laser was reported in 196711. In figure 2, the absorbance spectra of dye doped polymer films at the concentrations 0. Twodimensional surface relief grating 2dsrg on azodye doped polymer film ddpf was fabricated using the twostep of holographic writing technique. Chu 3 1 institute of electrooptical science and engineering and advanced optoelectronic technology center, national cheng kung university, tainan, taiwan 701, republic of china. Experimental results demonstrate that the lasing intensity of the random laser can be controlled to decrease by. Synthesis and investigation of phenol red dye doped polymer films. The photochemical processes that take place in these systems are discussed. The sulphur is present due to the amino acid cysteine.
The solutions of laser dye prepared by dissolving the required amount of the dye in ethanol. The dye doped polymer nanofibers were fabricated as follows. Dyedoped polymers have been studied in detail from the point of view of. Silk is a polymer of the amino acids glycine and alanine wool is having disulphide sulphursulphur bonds to link the polymer chains together. For this purpose, our experimental test beds are dyedoped polymer thinfilm lasers based on commer cial laser dyes, namely dcm, rhodamine. We report on what we believe is the first demonstration of an optically activated cantilever due to photomechanical effects in a dyedoped polymer optical. Whitelight emission of dyedoped polymer submicronic fibers produced by electrospinning. Alsaidi, raghad jabar, optical properties characterization of celestin blue b dye doped polymer films, j. The first report of the observation of photobleaching in polymer host. Light amplification in dye doped polymer films article pdf available in journal of optics a pure and applied optics 92 february 2007 with 127 reads how we measure reads.
The enhanced random lasing from dyedoped polymer films with. Here, we have demonstrated the production of colorless and fullcolor magnetic nanoparticles based on holmium ho doped polymers, which could not be achieved with conventional dark brown iron oxide magnetic nanoparticles. In this work, we observe the transition from incoherent rl in the dppdoped solutions and polymer membrane systems using dipcoating method to coherent rl in the polymer membrane system with defect waveguide using semipolymerization sp coating method. The groove structure of the 2dsrg was dependent on the rotational angle of the twostep of writing, and the depth of the groove could be enhanced about 23 times by using nematic liquid crystal as the interface. Whitelight emission of dyedoped polymer submicronic fibers. Alloptically controllable random laser based on a dye.
Introduction to materials science, chapter 15, polymer structures university tennessee, dept. The thermal characterization of the dye doped polymers were studied by thermo gravimetric analysis. Hutchinson skip to main content accessibility help we use cookies to distinguish you from other users and to provide you with a better experience on our websites. Aggregation of the dye results in luminescence quenching. Drastic photocatalytic degradation of methylene blue dye by. To produce the dye doped polymer gain medium, we dissolved 21 mg of rhb dye in 5 cc of su82002 microchem inc. We report on what we believe is the first demonstration of an optically activated cantilever due to photomechanical effects in a dye doped polymer optical. Synthesis and investigation of phenol red dye doped polymer. Realtime poling vapor codeposition of dyedoped secondorder nonlinear optical polymer thin films.
The advantages of dyedoped polymer matrices over polymers and dyes, separately, are analyzed. Advances in dyedoped solgel lasers mrs online proceedings. Osa the investigation of the twodimensional surface. Fabrication and characterization of dyedoped polymeric. Study of a holographic grating based on dyedoped polymer. Fast photochromic dye response in rigid block polymer thermosets. Azo dyedoped photorefractive polymers, proceedings of spie. Introduction to materials science, chapter 15, polymers. The optical properties of the pure polymer film and polymer films doped with phenol red dye at different concentrations were investigated. The origin of electrophosphorescence from a doped polymer light emitting diodeledhas been investi gated. Dyes incorporated in thin polymer films have been found to be more stable.
Both liquid and spraycoated homogeneous film samples of 22. Random lasers rls offer new functionalities inaccessible with conventional lasers, such as an alterable shape and an easy integration with flexible optoelectronic devices. Fabrication and characterization of dyedoped polymeric mode. Random lasing emission from fto and glass substrates. Published in journal of materials chemistry c, doi. An ethylene glycol solution of rhb consisting of 21 mg rhb in 5 cc ethylene glycol purchased from merck with 99. Using amplified spontaneous emission gain radiative and related properties of this dye doped matrix was measured. Nearinfrared nir fluorescence sensing is desirable for in vivo biological measurements, but the method is currently limited by the availability of nir fluorescent markers as well as by their poor performance, such as selfaggregation and dim fluorescence, in a physiological environment. Pumppolarization effects in dyedoped polymer optical. These polymers have a high surface quality and are also highly transparent so that the laser properties are dominated by the laser dye used to dope the polymer matrix. To produce the dyedoped polymer gain medium, we dissolved 21 mg of rhb dye in 5 cc of su82002 microchem inc. Random laser of r6g dye and tio2 nanoparticals doped in. Azo dye doped photorefractive polymers azo dye doped photorefractive polymers volodin, boris l kippelen, bernard. Flexible random laser from dye doped stretchable polymer.
Based on the change of the absorption for rhb dye incorporation into different transparent polymer hosts, heat sensor testing has been investigated via recording. Fast photochromic dye response in rigid block polymer. Bromocresol purple bcp dye doped san films were fabricated by varying the concentration of dye and studied the effect on the optical parameters. Biopolymers can be complex and nice introduction to materials science, chapter 15, polymer structures university tennessee, dept. Highly reproducible co copolymer and dyedoped polymer fiber fabrication is of great interest for many nonlinear optical applications. Using perylenedoped polymer nanotubes as fluorescence.
Fabrication of dye doped polymer composite and specific. Pdf the optical properties of the pure polymer film and polymer films doped with phenol red dye at different concentrations were investigated. The polymers were obtained by doping pvk with 2,4,7 trinitro. Photonics and molecular design of dyedoped polymers. Decoloration kinetics for dye doped p4mcl of two molecular weights. Solid state organic gain medium using opticallypumped dye molecules doped in a polymer host is considered as the top cladding of a longrange surface plasmon polariton lrspp structure to enable active plasmonic devices with interesting applications operating in the nearinfrared. Alloptically controllable random laser based on a dyedoped polymerdispersed liquid crystal with nanosized droplets c. Polymer also publishes work on the technological application of polymers in energy and optoelectronics.
Random lasing emission from fto and glass substrates coated. The materials with an ability of selffocusingdefocusing through their light. Read preparation and characterization of pyrromethene567 dyedoped polymer samples using gamma irradiation polymerization method gipm, journal of luminescence on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at. A twolayer model of the film is proposed to take into account the different results obtained in photoinduced birefringence experiments. Several organic materials including dyedoped polymer films are attracting many. The effect of molar mass is much less dramatic than the effect of covalent attachment of the dye to polymer. Origin of electrophosphorescence from a doped polymer light. Using perylene doped polymer nanotubes as fluorescence sensors soohyun lee, astrid m. Sudan black b sbb was used to investigate as the nonionic diazo dyedoped in polymer dispersed liquid crystal pdlc display, by polymerizationinduced phase separation pips method. Importance of dye host on absorption, propagation losses. Free fulltext pdf articles from hundreds of disciplines, all in one place. They make up about 80% of the organic chemical industry with products produced at approximately 150 kg of polymers per person annually in the united states.
Polymers and the environment, emulsion polymerization, polymer science approach to physicochemical characterization and processing of pulse seeds, polymer characterization with the atomic force microscope, nonconventional method of polymer patterning, the properties and application of carbon nanostructures, electrokinetic potential. Dyedoped pqpmma phase holographic materials for dfb lasing. The polymers were obtained by doping pvk with 2,4,7 trinitro9 fluorenone as a sensitizer agent and two. Origin of electrophosphorescence from a doped polymer. Drastic photocatalytic degradation of methylene blue dye. Highly reproducible co copolymer and dye doped polymer fiber fabrication is of great interest for many nonlinear optical applications.
Pdf synthesis and investigation of phenol red dye doped. Additionally, the vibrational structure of the undopeddoped polymer is. Poly methylmethacrylate pmma polymer was doped with the phenol red dye dissolved in a mixture of chloroform and little quantity of methanol, used as suitable solvent for both the dye and the polymer. Dyedoped polymer dispersed liquid crystal films for flexible displays keejeong yang 1, seungchul lee, and byeongdae choi division of nano and bio technology, daegu gyeongbuk institute of science and technology dgist, daegu 704230, korea. A dyedoped pbtpdlc sample was fabricated, and used to write a holographic grating. Request pdf material gain concentration quenching in organic dye doped polymer thin films the optimization of material gain in optically pumped dye doped polymer thin films is an important. Dec 07, 2001 we apply standard emission and absorption techniques in conjunction with the sideillumination fluorescence sif technique to characterize both co polymer and dye doped polymer fibers and fiber preforms. Using perylenedoped polymer nanotubes as fluorescence sensors soohyun lee, astrid m. The films were prepared using the casting technique. An optically activated cantilever using photomechanical. The enhanced random lasing from dyedoped polymer films. Nonlinear effetcts in dyedoped polymer optical fibres for optical communication nonlinear effetcts in dyedoped polymer optical fibres for optical communication.
Joshi 2 1school of mechanical and building sciences, 2polymer nanocomposite laboratory, material physics division. The main approaches to molecular engineering of pros pective dyedoped polymer matrices for optoelectronics have been considered. Hammed, random laser of r6g dye and tio 2 nanoparticals doped in pmma polymer, advances in materials physics and chemistry. By now almost the entire visible range has been covered by different polymerhost devices. Preparation and characterization of pyrromethene567 dye. Dye doped polymer fibers obtained from mixed solutions. Free fulltext pdf articles from hundreds of disciplines, all in one place dyedoped silica nanoparticles. Free polymer chemistry books download ebooks online. Optical properties characterization of celestin blue b dye doped. It is eminently useful for teaching polymer science in departments of chemistry, chemical engineering, and material science, and also for teaching polymer science and technology in polymer science institutes, which concentrate entirely on the science and technologies of polymers. The maximum absorbance, contrast ratio, dichroic ratio and the order parameter of nonionic diazo dye in nemetic host tl203 were investigated using uvvis polarized spectroscopy. Azo dyedoped photorefractive polymers azo dyedoped photorefractive polymers volodin, boris l kippelen, bernard. Alloptically controllable random laser based on a dyedoped.
A luminescent polymer host, poly 9,9dioctylfluorenepfo, was doped with a red phosphorescent dye, 2,3,7,8,12,17,18octaethyl21h,23hporphyrin platinumii ptoep. Polarised light induced birefringence in azo dye doped. Pdf in the present work, film samples of pure and doped polymethylmethacrylate pmma polymer with different concentrations of celestin blue b dye. Mma are used as matrices in the gain medium of solidstate dye lasers, also known as solidstate dyedoped polymer lasers. Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in polymer physics, chemistry and technology. An important member in the family of poly acrylic esters is poly methyl methacrylate pmma. Importance of dye host on absorption, propagation losses, and ampli.
Random laser of r6g dye and tio 2 nanoparticals doped in pmma polymer. Dye doped polymer dispersed liquid crystal films for flexible displays keejeong yang 1, seungchul lee, and byeongdae choi division of nano and bio technology, daegu gyeongbuk institute of science and technology dgist, daegu 704230, korea. The powder of tio2 was suspended in chloroform and its concentration was estimated based on the known weight fraction of tio2 in the suspension. Pdf study optical properties of r6g dye doped in polymer pva. These polymers have a similar structure to the polyamides, which have the urethane carbamate group as part of the polymer backbone. The random laser rl based on organic rhodamine 6g r6g laser dye and titanium dioxide tio2 suspended nanoparticles have been prepared with polymethylmethacrylate pmma as a host. Apr 17, 20 fabrication of dye doped polymer nanofibers. Copying the complexity of white light requires a more versatile approach. Today, polymers are commonly used in thousands of products as plastics, elastomers, coatings, and adhesives. Using perylenedoped polymer nanotubes as fluorescence sensors. This study investigates the characteristics of the holographic grating formed in polymerballtype polymerdispersedliquid crystal pbtpdlc. Asuncion illarramendi and others published pumppolarization effects in dye doped polymer optical fibers find, read and cite all the research you need on.
Azo dye doped polymer films for nonlinear optical applications. The dyedoped polymer nanofibers were fabricated as follows. Synthesis and investigation of phenol red dye doped. Study of polymethyl methacrylate thin lms doped with. Importance of dye host on absorption, propagation losses, and. Realtime poling vapor codeposition of dyedoped secondorder nonlinear optical polymer thin films by huashu wu download pdf 244 kb. The refractive index n of the phenol red dye doped polymer film versus the incident photon energy h. Pdf optical properties of rhodamine b dye doped in.
We apply standard emission and absorption techniques in conjunction with the sideillumination fluorescence sif technique to characterize both copolymer and dyedoped polymer fibers and fiber preforms. Random laser of r6g dye and tio2 nanoparticals doped in pmma. The gain media is a thin film of pmma poly methyl methacrylate doped with 0. Mma are used as matrices in the gain medium of solidstate dye lasers, also known as solidstate dye doped polymer lasers. Photobleaching and its severity in dye lasers were first studied by ippen et ap3. To address this issue, this paper describes a nir fluorescent polymer dot pdot that emits at 777 nm. Copolymer and dyedoped polymer fiber and fiber preform.
Supporting information exploiting fast exciton diffusion in. Optical properties of rhodamine b dye doped in mafiadoc. Resonance fluorescence spectra of dyedoped polymers. Polymer chemistry, sixth edition nanjing university. Bardeen department of chemistry, university of california, riverside, california 92521. Studies on dye doped polymers abstract the fluorescence and amplified spontaneous emission characteristics of rhodamine 6g impregnated in polyacrylamideis reported in this chapter. Jan 01, 2015 read preparation and characterization of pyrromethene567 dye doped polymer samples using gamma irradiation polymerization method gipm, journal of luminescence on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Whitelight emission of dyedoped polymer submicronic. From their studies it was shown that the bleached dye molecular fragments did not absorb in the visible portion of the spectrum.
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