Β‑Phase Cu-phthalocyanine/acrylonitrile butadiene styrene terpolymer nanocomposite film technology for organoelectronic applications

To investigate electronic properties, such a dielectric permittivity, dielectric loss, conductivity, capaci tance, and Nyquist plots, acrylonitrile butadiene styren (ABS) and β-CuPc (10−40 wt % of β-CuPc) formulatio was utilized to fabricate nanocomposite films via the cost effective solution processing technique. Cross-sectiona morphological investigations were performed for the devel oped composites with the aid of Field emission scannin electron microscopy microscopy; the result suggested that th modified cross-sectional surface morphology was due to th addition of the β-CuPc compound. Further, the interactions attributable phase groups of the polymer with the β-CuP compound were studied by Fourier-transform infrared spec troscopy. The UV−vis spectroscopy result suggested that the absorption peak at 380 nm belongs to π−π* transition, which corresponds to intense B-band (Soret band) of Cu-Phthalocyanine ring, which significantly instigates the electronic conduction mechanism. Further, to understand the electronic properties, a broad-band impedance analyzer was utilized, wherein dielectric permittivity at <10 Hz was found to attribute due to the Maxwell−Wagner−Sillars polarization mechanism. Subsequently, frequency-dependent permittivity (10³−10⁷ Hz) was comprehended by the dipole polarization mechanism. The realization of composite’s permittivity increment from 4.6 to 5.1 at 10⁷ Hz was due to the oriental resonance phenomena. Moreover, a composite with a maximum conductivity (σ<inf>AC</inf>) of 2.1 × 10⁻⁶ S/cm was observed, which is attributable to the π−π* transition (380 nm), as evidenced by UV−vis spectra. Although the composite reveals higher conductivity, at higher frequency, low loss characteristics (>10 MHz ∼ 0.049) were observed of β-CuPc/ABS. These low loss characteristics are a remarkable outcome of nanocomposites at MHz frequencies. Therefore, the authors believe that these nanocomposite films fabricated via the cost-effective solvent cast film technology could facilitate to develop organoelectronic components or devices.