Absorption spectra of rhodamine B dimers in dip-coated thin films prepared by the sol-gel method

Fujii, Tsuneo; Nishikiori, Hiromasa; Tamura, Takuma

doi:10.1016/0009-2614(94)01477-d

Cited by 93 publications

(103 citation statements)

References 26 publications

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“…From the crystal data about the Acridine Orange cation (Obendorf et al 1976;Reddy et al 1979;Mattia et al 1984Mattia et al , 1995Kuban et al 1985;Gordon et al 2003), the Proflavine cation (Jones and Neidle 1975;Shieh et al 1980Shieh et al , 1982Swaminathan et al 1982;Aggarwal et al 1984;Ara and El Bahij 2004;Varga et al 2007), Methylene Blue (Marr et al 1973;Kahn-Harari et al 1973;Endres et al 1977;Snaathorst et al 1981;Enescu et al 2000;Sours et al 2002;Kavitha et al 2004;Li et al 2005;Soneta and Miyamura 2006;Raj et al 2007), Eosin (Harrison et al 2007), Rhodamine B (Fujii et al 1995;Nishikiori and Fujii 1997;Soneta et al 2006), Ethyl Rhodamine G (Wang et al 1997;Fun et al 1997;Liu et al 1998;Adhikesavalu et al 2001;Zhang et al 2001), Para-rosaniline (Koh and Eriks 1971;Liu et al 2002;Xie 2008), and Crystal Violet (Spangler et al 1989;Lovell et al 1999;Lacour et al 2002;Soneta et al 2006), as well as the substituted 1-phenyl-azo-2-naph...…”

Section: Dye Aggregatesmentioning

confidence: 97%

Lignin selective dyes: quantum-mechanical study of their characteristics

Perdih

2011

Cellulose

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The mechanism of dye-bonding to the lignin component of the fibre was checked using the quantum-mechanical and crystallographic approach. The calculated data support the conclusion that for the selectivity of cationic dyes for lignin, a high partial negative charge on accessible substituents on the periphery of the molecule is the most important, but not an exclusive factor. Besides the delocalized positive charge, what is also important for the interaction of a dye with hemicellulose, is the dye's ability to be involved in hydrogen bonds, whereas for the interaction with lignin also its ability of stacking to it.

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Section: Dye Aggregatesmentioning

confidence: 97%

Lignin selective dyes: quantum-mechanical study of their characteristics

Perdih

2011

Cellulose

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“…In our previous paper, one monomer and two dimers (H-and J-types) are clearly and simultaneously resolved in the absorption spectra of rhodamine B (RB) in the solgel reaction of tetraethylorthosilicate [25]. Furthermore, the thin films containing RB were prepared from the solgel reaction system as a function of time after mixing of the reaction systems [26].…”

Section: Introductionmentioning

confidence: 99%

Molecular forms and fluorescence processes of 9-aminoacridine in thin sol–gel films

Nishikiori

Tanaka

Minami

et al. 2010

Journal of Photochemistry and Photobiology A: Chemistry

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Molecular aggregation and fluorescence processes of 9-aminoacridine (9AA) in thin silica gel films have been investigated by the steady state and time-resolved fluorescence measurements.The monomer of 9AA was the preferential species in the solgel reaction systems of tetraethylorthosilicate until the gelation occurred. The 9AA molecules formed the dimer or higher aggregates just after preparing the dip-coated thin film from the solgel system. The extent of the aggregation decreased in the film prepared from the system in which the reaction further proceeded. This result indicates that the aggregation in the prepared film was gradually prevented by the steric hindrance of the SiO 2 network with the progress of the solgel reaction. The fluorescence properties of 9AA revealed the behavior of the molecules due to the change in the physicochemical environment in the matrix.

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“…As a matter of fact, other routes which possess large potentialities are constituted by polymer doping, which can produce high third order nonlinearities [23,24], as well as by rare earth [25][26][27][28] or dye [29][30][31][32] doping, which are extensively studied in order to produce light amplification or lasing. A broad variety of dopants is also being been investigated in the effort to obtain highly-sensitive and fast-responding integrated optic chemical and/or physical sensors [42-501. The increasing number of papers in this area witnesses the vitality of the research and the high expectancy for short-term applications, especially to photonic devices and systems.…”

Section: Discussionmentioning

confidence: 99%

Sol-gel glass waveguides

Righini¹,

Pelli²

1997

J Sol-Gel Sci Technol

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Abstract. Sol-gel processes show many promises for the development of low-loss, high-performance glass integrated optical circuits. Special attention is being paid to the preparation of composite glass films, where the properties of organic or inorganic dopant compounds included in the glass matrix are fully exploited. Nonlinear optical glass film waveguides have the potential to become key devices in the future, leading to further technical advances of fiber optic communication systems. This paper briefly reviews current activities in sol-gel glasses for integrated optics, with particular focus on silica-titania and semiconductor-doped films.

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Absorption spectra of rhodamine B dimers in dip-coated thin films prepared by the sol-gel method

Cited by 93 publications

References 26 publications

Lignin selective dyes: quantum-mechanical study of their characteristics

Lignin selective dyes: quantum-mechanical study of their characteristics

Molecular forms and fluorescence processes of 9-aminoacridine in thin sol–gel films

Sol-gel glass waveguides

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