Influence of ammonia, lithium hydroxide, and hexamine on ZnO films synthesized by successive ionic layer adsorption and reaction technique

摘要: Various nanostructured zinc oxide (ZnO) films have been developed on non-seeded soda-lime glass substrates by successive ionic layer adsorption and reaction (SILAR) method, employing different baths of aqueous sulfate solution using complexing agents ammonia, lithium hydroxide, hexamine. Influence the structural, morphological, chemical compositional, optical electrical properties were investigated compared among with samples annealed at 400 °C. Role growth process was discussed. X-ray diffraction analysis revealed that ZnO polycrystalline dominating (100), (002), (101) oriented crystallites hexagonal wurtzite structure. The lattice constants, c/a ratio, internal relaxation parameter, anion–cation (Zn–O) bond length, tetrahedral angles determined. Cauliflower, flower, flower-like nanorod morphologies from respective exposed scanning electron microscopic studies. Optical all except prepared hexamine showed low absorbance a higher transmittance 70–85 % in entire visible region. Resistivity one order magnitude lower than as-grown films. We demonstrated utility SILAR as an efficient single step soft route for obtaining high-quality crystalline having high-specific surface area substrates.