Effects of different dopants on the band gap and electrical conductivity of the poly(phenylene-thiazolo[5,4-d]thiazole) copolymer

Abstract

Band gap energy and electrical conductivity of poly(phenylene-thiazolo[5,4-d]thiazole) were compared for different dopants.

Electrochemical synthesis and corrosion protection of poly(3-aminophenylboronic acid-co-pyrrole) on mild steel

“…High R p value is associated with the effective corrosion resistance, which is proof of the formation of a stable polymer layer and a passive layer on the electrode/polymer interface. 5 The adherence of p(APBA) and p(Py) coatings were also examined and were found as about 100% and 25%, respectively. The ability of p(APBA-co-Py) coating to adhere to the steel surface (100%) is better than p(Py) coating.…”

“…A conducting polymer coating on the metal surface, which is one of the active research areas in electrochemistry, acts as not only a physical but also an electronic barrier against penetration of corrosive ions. [1][2][3][4][5] The electroactive character of the polymer causes the location of the reaction to shi from the metal surface to the polymer/electrolyte interface, 6 and thus inhibits charge transfer from the corrosive solution to the metal surface or vice versa. 5 In addition to this, stable interphase between polymer and metal surface forms during electrosynthesis, and thus coatings could exhibit strong adhesion and good anticorrosive properties.…”

“…[1][2][3][4][5] The electroactive character of the polymer causes the location of the reaction to shi from the metal surface to the polymer/electrolyte interface, 6 and thus inhibits charge transfer from the corrosive solution to the metal surface or vice versa. 5 In addition to this, stable interphase between polymer and metal surface forms during electrosynthesis, and thus coatings could exhibit strong adhesion and good anticorrosive properties. 7 Among conducting polymers, polypyrrole (p(Py)) and polyaniline (PANI) have been extensively investigated in the anticorrosion eld because of the easy preparation, stability in ambient conditions, thickness controllability, and good electrical conductivity.…”

A futuristic strategy to influence the solar cell performance using fixed and mobile dopants incorporated sulfonated polyaniline based buffer layer

“…1A-E were further used to estimate the values of the energy levels in the polymers through HOMO, LUMO and E g CV of the polymers. The ill-defined onset potential values or well-defined half wave potentials (E 1/2 ) for the oxidation and reduction processes were used to estimate the HOMO and LUMO energy levels of CPs [53,54]. While the initial onset of the oxidation occurs mostly at positive potentials for PANI type polymers, the onset for the reduction process occurs at far negative potentials ( o À 0.90 V).…”

Low-band gap and fluorescent poly(triphenylamine-thiazolo[5,4-d]thiazole) copolymer dye

“…1b). [10][11][12] The rst compound of this class was prepared in 1891 by Ephraim, 13 but its correct structure was established only in 1960 by Johnson et al [14][15][16] The potential biological activity, semiconductivity and solar cell material properties of thiazolo [5,4-d]thiazoles have been investigated. 16,17 New polymeric thiazolo [5,4-d]thiazole derivatives, for example, thiophene-thiazolo [5,4-d]thiazole, 18 thiophene-thiazolo [5,4-d]thiazole-naphthalene, 19,20 bithiophene-co-thiazolo [5,4-d]thiazole, 21 2,5-dithienyl-thiazolo [5,4-d]thiazole 22 copolymers have been reported.…”