Analysis of structural, optical and electrical properties of metal/p-ZnO-based Schottky diode |
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Authors: | Lucky Agarwal Shweta Tripathi PChakrabarti |
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Affiliation: | 1. Department of Electronics & Communication Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004,India;2. Department of Electronics Engineering Indian Institute of Technology(Banaras Hindu University), Varanasi-221005, India |
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Abstract: | A systematic study of the behaviour of Pd/p-ZnO thin film Schottky diode has been reported.The p-type ZnO thin film with improved stability has been grown on n-type Si by doping ZnO with copper.Seebeck measurement confirmed the p-type nature of Cu-doped ZnO thin film.The X-ray diffraction spectra of the deposited film revealed polycrystalline nature with preferred growth orientation of (101) of ZnO film.The surface morphological study demonstrated the conformal deposition of a thin film over n-Si wafer.The estimated bandgap of Cu-doped ptype ZnO thin film from ellipsometric measurement turns out to be 3.14 eV at 300 K.The measured electrical parameters of the proposed Pd/p-ZnO Schottky diode have also been validated by the results of numerical simulation obtained by using ATLASTM device simulator. |
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Keywords: | p-type ZnO Cu-doped ZnO sol-gel method Schottky diode |
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