The Chemical and Physical Characterizations of Aniline-Co-3-methyl Thiophene Copolymer Synthesized by a New Oxidant

Investigation of structural, morphological, and transport properties of a multifunctional Li-ferrite compound

“…At the lower frequencies (10 2 –10 4 Hz), the conductivity spectra have nearly constant values ( σ dc ) because the random distribution of the charges carriers gives rise to frequency-independent conductivity. 54 It is clear that dc conductivity is thermally activated, which can display the semiconductor behavior by the leap of the localized load carrier, where the hole jumps between Mn 3+ and Mn 2+ cation and the electron hops between Fe 2+ and Fe 3+ ion. The semiconductor nature indicates that these compounds can be promising in certain applications such as optoelectronics, photodetectors, and photovoltaics.…”

“…This can be explained by the important contribution of the charge carrier and the jumping mechanism. 54 This region is attributed to the alternating conductivity ( σ ac ). Generally, the electrical conductivity behavior obeys the common universal power law, as reported by Jonscher.…”

“…Generally, the electrical conductivity behavior obeys the common universal power law, as reported by Jonscher. 54 σ T = σ dc + σ ac = σ dc + Aω s where σ dc denotes the static component of the conductivity (at low-frequency value), ω is the angular frequency, and A is the pre-exponential factor. The exponent s represents the degree of interaction between the mobile ions and the environments around them.…”

Preparation and characterization of polyaniline‐ and polythiophene‐based copolymer and its nanocomposite suitable for electro‐optical devices

“…In past decades or so conducting polymers, such as polyaniline (PANI), polythiophene, polyacetylene, and polypyrrole [1,2] have drawn the attention of a large number of workers, scientists, researchers, and industrialist predominantly because of their interesting electronic and optical properties. Other characteristic features, such as flexible preparation techniques, [3] low cost, [4] environmental stability, or non-toxicity [5] make them applied in various commercial applications such as polymer solar cells, [6] light emitting diodes, [7] sensors, and batteries [5] . In spite of significant efforts made in the field of conjugated polymers, [8] there are some fundamental limitations, which have to be overcome for commercial purpose.…”

“…The biggest challenge is to give the polymer a usable shape. Besides this, the insufficient environmental stability, low mechanical properties and weak resistance [10] of the conducting polymers [7] limits the durability in the field of applications. In this article, conducting copolymer is prepared by using aniline and thiophene monomers.…”