Self-consistent simulation of CdTe solar cells with active defects
- Arizona State Univ., Tempe, AZ (United States)
- First Solar, Perrysburg, OH (United States)
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. Lastly, 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.
- Research Organization:
- Arizona State Univ., Tempe, AZ (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- EE0006344
- OSTI ID:
- 1237015
- Alternate ID(s):
- OSTI ID: 1228689
- Report Number(s):
- DOE-ASU-0006344-5; JAPIAU
- Journal Information:
- Journal of Applied Physics, Vol. 118, Issue 3; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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Metastability and reliability of CdTe solar cells
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