Abstract
Abstract ZnO nanoparticles were grown on cellulose fiber surfaces with different precursor concentrations by a simple aqueous chemical method. The morphology and structure of the ZnO-cellulose nanocomposites were studied by scanning electron microscopy and X-ray diffraction, respectively. The ultraviolet sensitivity of the nanocomposites was observed by current-voltage measurement followed by time-resolved photocurrent study A ZnO-cellulose nanocomposite synthesized at 37.5 mM concentration of zinc nitrate hexahydrate had a higher UV sensitivity with faster response. Due to UV illumination, the photocurrent of the nanocomposite pellet increased from 2.251 × 10-8 A to 1.11 × 10-6 A in 8 s. The ON to OFF ratio (IUV/IDark) for this sample was found to be 49.31.
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