By Pradip Kar
ISBN-10: 1118573803
ISBN-13: 9781118573808
An A-to-Z of doping together with its definition, its significance, tools of dimension, benefits and drawbacks, homes and characteristics—and function in conjugated polymers
The versatility of polymer fabrics is increasing as a result advent of electro-active habit into the features of a few of them. the main intriguing improvement during this zone is expounded to the invention of intrinsically conductive polymers or conjugated polymers, which come with such examples as polyacetylene, polyaniline, polypyrrole, and polythiophene in addition to their derivatives. "Synmet" or "synthetic steel" conjugated polymers, with their metal features, together with conductivity, are of precise curiosity to researchers. a space of unlimited power and alertness, conjugated polymers have sparked huge, immense curiosity, starting in 2000 whilst the Nobel Prize for the invention and improvement of electrically engaging in conjugated polymers was once presented to 3 scientists: Alan J. Heeger, Alan G. MacDiarmid, and Hideki Shirakawa.
Conjugated polymers have a mixture of properties—both metal (conductivity) and polymeric; doping supplies the conjugated polymer's semiconducting quite a lot of conductivity, from insulating to low engaging in. The doping approach is a verified powerful technique for generating undertaking polymers as semiconducting fabric, supplying an alternative choice to inorganic semiconductors.
Doping in Conjugated Polymers is the 1st publication devoted to the topic and provides a complete A-to-Z evaluation. It information doping interplay, dopant forms, doping strategies, and the effect of the dopant on functions. It explains how the functionality of doped conjugated polymers is significantly encouraged via the character of the dopants and their point of distribution in the polymer, and exhibits how the electrochemical, mechanical, and optical houses of the doped conjugated polymers may be adapted through controlling the dimensions and mobility of the dopants counter ions.
The ebook additionally examines doping on the nanoscale, specifically, with carbon nanotubes.
Readership
The e-book will curiosity a large diversity of researchers together with chemists, electrochemists, biochemists, experimental and theoretical physicists, digital and electric engineers, polymer and fabrics scientists. it could possibly even be utilized in either graduate and upper-level undergraduate classes on conjugated polymers and polymer technology.
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Extra info for Doping in Conjugated Polymers
Example text
It explains how the performance of doped conjugated polymers is greatly influenced by the nature of dopants and their level of distribution within the polymer, and shows how the properties of the doped conjugated polymers can be tailored by controlling the size and mobility of the dopants’ counter ions. 1 Introduction Dopant is a generic name given to a vast number of materials which can have a doping effect on the conjugated polymer. These materials exist in countless numbers because of the very large variety of dopants for conjugated polymers.
Can be prepared by the simple solution blending technique [40–42]. Polymeric doping can be chemically done by simultaneous synthesis of both polymers using the same reagent with or without the presence of other dopant. Here, the other dopant can be used as co-dopant to enhance the property of the conjugated polymer. Electrically-conducting polypyrrole/poly(2-acrylamido-2-methyl-1-propane sulfonic acid) dopant composites were chemically synthesized in an aqueous solution containing dodecyl benzene sulfonic acid.
Etc. Gaseous inorganic substances can be used for the doping of conjugated polymer directly in the gas phase or by dissolving them in suitable solvent. As for example, the oxidative doping of polyaniline is run either with chlorine or bromine in the gaseous phase or with gases like carbon tetrachloride in the organic solvent phase. 1). For this reason generally inorganic-doped conjugated polymer shows better conductivity over the organic- or polymeric-doped conjugated polymer. The above statement is also true among the various types of inorganic dopants as well.
Doping in Conjugated Polymers by Pradip Kar
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