CSA Doped Poly(aniline-co-o-toluidine) and Dispersed Zinc Oxide Nanoparticles: a Promising Material for Photovoltaics

Abstract

Copolymerization of aniline and o-toluidine is achieved by chemical oxidative polymerization with equal molar ratio of monomers in the presence of hydrochloric acid and ammonium persulphate as an oxidant. The copolymer found to be more soluble in polar solvents such as NMP, DMF and DMSO. FTIR spectroscopy confirms the copolymer chemical structure. UV spectroscopy shows π to π* transition and excitonic transition of the copolymer film. The copolymer is doped with camphorsulfonic acid (CSA) in m-cresol and then zinc oxide nanoparticles are dispersed into the copolymer and spin coated on to a glass plate. The scanning electron microscope image shows the morphology of the copolymer matrix. X-ray Diffraction shows the characteristic peaks of CSA and zinc oxide. EDAX analysis confirms the presence of CSA and zinc oxide. The dispersion of zinc oxide nanoparticles show quenching property of photoluminescence indicating that the copolymer can be used in the opto-electronics.

n-type polyaniline hole-blocking layer for high-efficiency QDSC by one-pot electropolymerization and selective aprotic cation ([EMIM]+) doping

“…A broader amplitude blue emission at ∼450 nm, a sharp bluish emission at 482 nm and a green emission at 526 nm have significant changes. Of the emission above, the first two correspond to π-π * transition for the benzenoid segment and the polaronic band of PANI [39] and the third corresponds to the n-π * transition for the [EMIM] + N of the imidazole segment in imidazolium ionic liquid [40]. In a certain polymerization, the adsorption of doped cation induces the electron cloud polarization of the PANI N atom, which enhances the intensity of luminescence.…”

Camphor Sulfonic acid Protonated Poly (2, 5-dimethoxyaniline) - Cadmium sulfide blend thin film for Ammonia gas Sensing Application

“…The peak at 27° attributed to the distance between the ring planes of benzene ring [7] and the peak at 33° ascribe the periodicity perpendicular to the polymer chain [8]. A small peak at 15.52°, 17.52° and 19.22° belongs to CSA [9] The peaks at 24.62°, 26.32, 28.02°, 43.82°, and 51.79° shows the cubic phase of CdS [10]. PDMA/CdS pattern shows the presence of CdS in the polymer matrix.…”

Preparation, Molecular Structure and Morphological Studies of DBSA Doped (M-Toluidine-Co-2-Ethylaniline) Copolymer Composites for flexible Sensor Applications in Agricultural Field

“…These conjugated polymeric materials can be easily synthesized at low cost with good environmental stability [5][6]. The properties of the conjugated polymers can be enhanced by adding different type of dopants, synthesizing conjugated copolymers having different functional groups and polymer nanocomposites using metal nanoparticles [7][8][9][10][11][12].…”