Two-Dimensional Electrical Modeling of High Geometrical Aspect Ratio Emitters

Turkay, Deniz
Yerci, Selçuk


Two-dimensional computational modeling of thin film evaporation
Akkuş, Yigit; Tarman, Hakan I.; Cetin, Barbaros; Dursunkaya, Zafer (2017-11-01)
A considerable amount of the evaporation originates from the close vicinity the three-phase contact line in an evaporating extended meniscus due to the low thermal resistance across the ultra thin film. Evaporation taking place within the thin film region is commonly modeled using the uni-directional flow assumption of the liquid following the lubrication approximation. Although the uni-directional flow based models may yield practically reasonable results in terms of the cumulative quantities such as total...
Two-Dimensional Numerical Analysis of Phosphorus Diffused Emitters on Black Silicon Surfaces
TÜRKAY, Deniz; Yerci, Selçuk (2018-07-06)
In this work, we present an analysis on electrical performance of phosphorus diffused emitters on black silicon surfaces through two-dimensional simulations. In particular, we focus on the extraction and analysis of the emitter saturation current density (J(0e)), the sheet resistance (R-sh), spatial collection efficiency profile and relatedly J(sc) of a solar cell. Using process simulations, we form emitters on periodic triangular structures with various aspect ratios (R) and emitter profiles. We show that ...
Two-dimensional numerical analysis of tunnel collapse driven in poor ground conditions
Türkoğlu, Melih; Bakır, Bahadır Sadık; Department of Civil Engineering (2013)
Insufficient information on the host medium can cause serious problems, even collapse, during construction in a tunnel. This study focuses on understanding the reasons behind the collapse of the Tunnel BT24 to be opened within the framework of Ankara-İstanbul High Speed Railway Project. The tunnel is located near Bozüyük in the Bilecik Province. The collapsed section of the tunnel was driven into a highly weathered, weak to medium rock mass. Unanticipated geological/geotechnical circumstances caused excessi...
Three-dimensional numerical modelling of temporal and spatial pattern formation in a dc-driven gas discharge-semiconductor system
Rafatov, İsmail (IOP Publishing, 2016-12-01)
A three-dimensional numerical model is developed and applied to study the temporal and spatial pattern formation in the planar layered system, consisting of a glow discharge layer, coupled to a high ohmic semiconductor layer. The whole system is sandwiched between two planar electrodes, to which a dc voltage is applied.
Two-dimensional sediment transport modeling in Cache Creek Settling Basin, California
Tu, Tongbi; Carr, Kara J.; Ercan, Ali; Kavvas, M. Levent; Nosacka, John (2015-01-01)
© 2015 ASCE.The Cache Creek Settling Basin (CCSB) is subject to inflows with high sediment concentration. Originally designed to protect the floodway capacity in the Yolo Bypass, current performance of the CCSB is in question following over 70 years of high sediment loads. Operation plans dictate that alterations be made to the levees and/or overflow weir in the basin when trap efficiencies are less than 30 percent. CCHE2D model, a 2D depth-averaged hydrodynamics and sediment transport model, is applied to ...
Citation Formats
D. Turkay and S. Yerci, “Two-Dimensional Electrical Modeling of High Geometrical Aspect Ratio Emitters,” 2019, Accessed: 00, 2021. [Online]. Available: