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Pt/CdTe/Pt asymmetric nano-Schottky diodes from colloidal quantum dots

Author(s): Jayakrishna Khatei | K. S. R. Koteswara Rao

Journal: AIP Advances
ISSN 2158-3226

Volume: 1;
Issue: 4;
Start page: 042166;
Date: 2011;
Original page

We have fabricated nano-Schottky diodes of CdTe QDs with platinum metal electrodes in metal-semiconductor-metal planar configuration by drop-casting. The observed high value of ideality factor (13.3) of the diode was possibly due to the presence of defects in colloidal QDs. We observed asymmetry and non-linear nature of I-V characteristics between forward and reverse directions, which has been explained in terms of size distributions of quantum dots due to coffee ring effect.
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