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Fizika i Tekhnika Poluprovodnikov, 2016, Volume 50, Issue 5, Pages 628–632
(Mi phts6463)
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This article is cited in 1 scientific paper (total in 1 paper)
Semiconductor structures, low-dimensional systems, quantum phenomena
A new simulation model for inhomogeneous Au/$n$-GaN structure
Nese Kavasoglu, Abdulkadir Sertap Kavasoglu, Bengul Metin Mugla Sitki Kocman University, Faculty of Sciences, Department of Physics, Photovoltaic Material and Device Laboratory, Kotekli, Mugla, Turkey
Abstract:
The larger the device area, the more difficult to carry on homogeneity during the fabrication and following treatments. Structural inhomogeneity may indicate themselves in variations in local electronic device parameters. Electrical current through the potential barriers is exponentially sensitive to the local device parameters and its fluctuations in the Schottky devices. A new simulation program is developed to describe a relation between multiple, random barrier heights and current-voltage characteristics of the Schottky device. We model the barrier height inhomogeneity in terms of random microcells connected in parallel, which have different barrier height values. Analyzing the integral of the simulated light current-voltage curves show that fluctuations of the local barrier height result in a degradation of the open circuit voltage, fill factor and in consequence, of the over all power conversation efficiency. The implementation described here is quite general and can be used to simulate any device parameter fluctuations in the Schottky devices.
Keywords:
Barrier Height, Fill Factor, Open Circuit Voltage, Current Voltage Characteristic, Schottky Barrier Height.
Received: 10.04.2015 Accepted: 12.11.2015
Citation:
Nese Kavasoglu, Abdulkadir Sertap Kavasoglu, Bengul Metin, “A new simulation model for inhomogeneous Au/$n$-GaN structure”, Fizika i Tekhnika Poluprovodnikov, 50:5 (2016), 628–632; Semiconductors, 50:5 (2016), 616–620
Linking options:
https://www.mathnet.ru/eng/phts6463 https://www.mathnet.ru/eng/phts/v50/i5/p628
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