Abstract
The electrical properties of Au/PtOEP/p-Si/Al and Au/PtOEP/n-Si/Al devices were studied in terms of current–voltage I–V characteristics at different temperatures ranging from 308 to 388 K. The two diodes were fabricated with the same qualifications. They showed a rectification behavior. The conduction mechanisms at forward and reverse bias and diode parameters as a function of the temperature for these devices were determined and discussed. The variation of the C −2–V characteristics for two diodes exhibited a straight line fit which supports the abrupt diode type. The interface state density N ss was determined from the I–V and C–V data using Card and Rhoderick’s model. Also, the impedance spectroscopy plots for the two diodes and suitable equivalent circuit model were established to evaluate the details of interface carrier transfer and recombination processes.
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This work was financially supported by South Valley University, Egypt.
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Abuelwafa, A.A., El-Denglawey, A., Dongol, M. et al. On the electrical characterization of platinum octaethylporphyrin (PtOEP)/Si hybrid device. Appl. Phys. A 124, 33 (2018). https://doi.org/10.1007/s00339-017-1453-9
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DOI: https://doi.org/10.1007/s00339-017-1453-9