Abstract

We present a 2D Unified Solver for modeling metastability and reliability in solar cells. The current version of the solver is adopted to model carrier and defect transport in thin film photovoltaic devices. A unique feature of the solver is that defects transport, carrier generation and recombination mechanisms and grain boundary descriptions are treated on an equal footing. We propose and implement the standard implicit Euler method with Newton iteration for solving the reactions, which leads to improved accuracy and numerical stability. We use Gummel's method to solve a coupled set of reaction-diffusion-Poisson equations which has been discretized using the Scharfetter-Gummel scheme. We verify the solver on the test case of 2D chlorine anneal. We illustrate that process temperature profiles can be simulated as well.

Original languageEnglish (US)
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1953-1955
Number of pages3
ISBN (Electronic)9781538685297
DOIs
StatePublished - Nov 26 2018
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: Jun 10 2018Jun 15 2018

Other

Other7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
CountryUnited States
CityWaikoloa Village
Period6/10/186/15/18

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Keywords

  • Defect chemical reactions
  • Drift-Diffusion-Reaction Solver
  • Metastability
  • PN junction
  • Transient solutions for continuity equation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Shaik, A. R., Brinkman, D., Sankin, I., Krasikov, D., Ringhofer, C., & Vasileska, D. (2018). A Unified 2D Solver for Modeling Carrier and Defect Transport in Photovoltaic Devices. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 1953-1955). [8547494] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2018.8547494