Conjugated oligomers and polymers

G. Leising, S. Tasch. W. Graupncr, Fundamentals of Electroluminescence in Paraphcnylene-Typc Conjugaled Polymers and Oligomers, in Handbook of Conducting Polymers (Eds. T. Skotheim, R. Elsenbaumer, J. Reynolds), Marcel Dekker, New York 1997. 

Panda P, Veldman D, Sweelssen J, Bastiaansen J, Langeveld-Voss BMW, Meskers SCJ (2007) Charge transfer absorption for pi-conjugated polymers and oligomers mixed with electron acceptors. J Phys Chem B 111 5076... 

In conjugated polymers and oligomers, the behavior of photoexcited states obeys general rules of molecular photophysics, such as the Kasha [88] and Vavilov [77] rules. These are empirical observations, rather than exact statements or laws. However, they provide a useful basis for discussion. The Kasha rule states that fluorescence occurs from the lower-lying excited state, independently of the excitation energy. The Vavilov rule states that the fluo-... 

Several n-conjugated polymers and oligomers (polyacetylene, several polythiophenes, Ooct-OPV5 oligomers, and phthalocyanines) have been used for the active layer of the transistors. 

IRAV modes have been observed in many conjugated polymers and oligomers, introduced either by chemical doping and by photo-excitation. The IRAV modes accompany each polaron or bipolaron excitation. Typically, the IRAV modes are used as an identification mark for the nature of the excitation (whether charged or neutral). However, there is almost no attempt to quantify the mechanism of pinning. 

Bassler H, Schweitzer B (1999) Site-selective fluorescence spectroscopy of conjugated polymers and oligomers. Accounts Chem Res 32(2) 173—182... 

J.-Y. Bigot, T. Barisien, Excited-Slate Dynamics of Conjugated Polymers and Oligomers, in F.C. DeSchryver, S. De Feyter,... 

Even if pratical applications of organic-based devices in electronics is potentially attractive, one of the most important goal of the electrical characterization of conjugated polymers and oligomers is the analysis and understanding of the charge transport mechanism in these materials. Studies have been performed on temperature... 

Siddiqui, S., and EC. Spano. 1999. H- and J-aggregates of conjugated polymers and oligomers A theoretical investigation. Chem Phys Lett 308 99. 

Sumpter, B.G., P. Kumar, A. Mehta, M.D. Barnes, W.A. Shelton, and R.J. Harrison. 2005. Computational study of the structure, dynamics, and photophysical properties of conjugated polymers and oligomers under nanoscale confinement. / Phys Chem B 109 7671. 

FIGURE 22.1 Backbone structure of some rr-conjugated polymers and oligomers. (From Vardeny, Z.V. and Wei, X., Handbook of conducting polymers, 2nd ed., eds. T.A. Skotheim, R.L. Elsenbaumer, and J. Reynolds, Marcel Dekker, New York, 1998. With permission.)... 

F. Gamier, G. Horowitz and D. Fichou, Conjugated polymers and oligomers as active material for electronic... 

K-Conjugated polymers and oligomers are organic materials with many interesting and useful properties [1, 2], Examples of this class of materials include polyacetylene, polythiophene, polypyrrole, poly(phenylenevinylene) and their derivatives. Electronic conductivity, luminescence and nonlinear optical behavior are all observed in these materials and these properties have been exploited in applications such as electroluminescent devices (polymer light-emitting devices or PLEDs), electrostatic coatings, electrochromic windows, chemical sensors and memory devices [3-9]. 

The optical absorption and emission spectra of conjugated polymers and oligomers have been reviewed. The optical bandgaps of the conjugated polymers that are organic semiconductors range from 1 to 3.5 eV. The photoluminescence spectra of conjugated... 

Chapter 7. Electronic Spectra of Conjugated Polymers and Oligomers Yukio Furukawa... 

Electronic Structure and Optical Response of Highly Conducting and Semiconducting Conjugated Polymers and Oligomers... 

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