Grain boundary modelling and characterization of thin-film silicon solar cell
- Sproul, Alistair, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW
- Edminston, Sean, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW
- Puzzer, Tom, Physics, Faculty of Science, UNSW
- Heiser, Gernot, Computer Science & Engineering, Faculty of Engineering, UNSW
- Wenham, Stuart, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW
- Green, Martin, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW
- Young, Timothy, Biological, Earth & Environmental Sciences, Faculty of Science, UNSW
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
An analytical model is developed to decribe recombination currents arising from recombination at grain boundaries (GBs) in the depletion region of a p-n junction solar cell. Grain boundaries are modelled as having a single energy evel in the energy gap, and partial occupancy of these stats gives raise to a chage on the GB. The analytical model is compared to a complete numerical simulation package (DESSIS) and found to be in excellent agreement. Additionally,. cross sectional EBIC images of a multilayer device containing vertical GBs are presented. The experimental data is comared qualitatively with results derived from numerical modelling
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