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Investigation of electrical characteristics of Ag/ZnO/Si sandwich structure
Date
2019-08-01
Author
Gullu, H. H.
Surucu, O. Bayrakli
Terlemezoğlu, Makbule
Yildiz, D. E.
Parlak, Mehmet
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In this study, temperature-dependent current-voltage (I-V), frequency-dependent capacitance-voltage (C-V) and conductance-voltage (G/omega-V) measurements are carried out for the electrical characterization of a zinc oxide (ZnO) thin film-based diode. The sandwich structure in the form of Ag/ZnO/Si/Al is investigated at temperatures between 220 and 360 K and in the frequency region of 1 kHz-1 MHz. ZnO thin film layer is deposited on a p-Si wafer substrate as a transparent conductive oxide layer by taking into consideration possible electronic applications with intrinsic attractive material properties. At each temperature step, the I-V curves showed about two orders of magnitude rectifying behavior and, according to the Schottky diode relation, the saturation current, zero-bias barrier height and ideality factor were extracted as a function of the temperature. In the case of non-ideal diode characteristics due to the inhomogeneties in the diode as observed from the characteristics of the calculated parameters, effective barrier height values are evaluated. In addition, based on the existence of the interface layer, density of interface states in the band gap region and parasitic resistances were determined by the capacitance measurements.
Subject Keywords
Electrical and Electronic Engineering
,
Atomic and Molecular Physics, and Optics
,
Electronic, Optical and Magnetic Materials
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/41012
Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
DOI
https://doi.org/10.1007/s10854-019-01913-w
Collections
Department of Physics, Article
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IEEE
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BibTeX
H. H. Gullu, O. B. Surucu, M. Terlemezoğlu, D. E. Yildiz, and M. Parlak, “Investigation of electrical characteristics of Ag/ZnO/Si sandwich structure,”
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
, vol. 30, no. 16, pp. 15371–15378, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41012.