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Title: Self-consistent simulation of CdTe solar cells with active defects

We demonstrate a self-consistent numerical scheme for simulating an electronic device which contains active defects. As a specific case, we consider copper defects in cadmium telluride solar cells. The presence of copper has been shown experimentally to play a crucial role in predicting device performance. The primary source of this copper is migration away from the back contact during annealing, which likely occurs predominantly along grain boundaries. We introduce a mathematical scheme for simulating this effect in 2D and explain the numerical implementation of the system. Finally, we will give numerical results comparing our results to known 1D simulations to demonstrate the accuracy of the solver and then show results unique to the 2D case.
Authors:
;  [1] ; ; ;  [2] ; ;  [3]
  1. School of Mathematical and Statistical Sciences, Arizona State University, Tempe, Arizona 85287 (United States)
  2. School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287 (United States)
  3. First Solar, Perrysburg, Ohio 43551 (United States)
Publication Date:
OSTI Identifier:
22489536
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCURACY; ANNEALING; CADMIUM TELLURIDE SOLAR CELLS; CADMIUM TELLURIDES; COPPER; ELECTRONIC EQUIPMENT; GRAIN BOUNDARIES; PERFORMANCE; SIMULATION