Influence of copper selenide nanoparticles on structural, optical and opto-electronic properties of polyinylalcohol/copper selenide composites.

Organic/inorganic nanocomposites (NC'S) are exceedingly promising materials for the development of opto-electronic devices. The production of NC'S based materials has many advantages mainly economical, development of foldable and huge area device fabrication. Poly Vinyl Alcohol (PVA) is a possible material possessing high dielectric potency, better charge holding capacity along with variable opto-electronic properties with dopant. Herein, we report the development of PVA-Cu₂Se NC'S via thought focus integration of copper selenide (Cu₂Se) Nano Particle (NP) in to PVA host matrix using aqueous solvent casting. The effect of NP concentration on structure, optical and opto-electronic properties have also been valued and considerably presented. The doped PVA films display increased light absorption in the near visible region and change in the position in the absorption edge. The energy band gap of PVA is reduced upon doping. The obtained outcome indicates that small bandgap PVA with better film-making capability and structural stability will address the concerns of conjugated polymers. The developed composite is of organized structure, which offers new functional hybrids for various opto-electronic applications. [ABSTRACT FROM AUTHOR]