Abstract
1-Dimentional nanostrutured Cadmium Oxide (CdO) thinfilms were prepared on p-type silicon (100) substrates by Chemical Bath Deposition (CBD). Deposition time was varied form 6 hrs to 12 hrs to tune the 1-Dimensitonal nanostructures. CdO thin films deposited for 6 hrs show needle like structures whereas film deposited for 12 hrs show nanowire structure. The XRD pattern confirms the polycrystalline nature of the film. EDAX pattern confirms the elemental species with right stoichiometry. PL spectra show strong emission peak at 511nm in all the samples. n-CdO/p-Si heterojunction diode was fabricated and its characteristics were studied. Ideality factor was estimated from I-V measurements and found to be 3.5 and 3.3. This high value of ideality factor arises due to the presence of interface states and series resistance effect.
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