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Facile fabrication and electrical investigations of nanostructured p-Si/n-TiO hetero-junction diode

AIP Conference Proceedings, ISSN: 1551-7616, Vol: 1953
2018
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Conference Paper Description

In this work, we have fabricated the nanostructured p-Si/n-TiO hetero-junction diode by using a facile spin-coating method. The XRD analysis suggests the presence of well crystalline anatase TiO film on Si with small grain size (∼16 nm). We have drawn the band alignment using Anderson model to understand the electrical transport across the junction. The current-voltage (J-V) characteristics analysis reveals the good rectification ratio (10 at ± 3 V) and slightly higher ideality factor (4.7) of our device. The interface states are responsible for the large ideality factor as Si/TiO form a dissimilar interface and possess a large number of dangling bonds. The study reveals the promises to be used Si/TiO diode as an alternative to the traditional p-n homo-junction diode, which typically require high budget.

Bibliographic Details

Arvind Kumar; Sandip Mondal; K. S. R. Koteswara Rao

AIP Publishing

Physics and Astronomy

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