Title :
Optimization of GaAs nanowire solar cell efficiency via optoelectronic modeling
Author :
Anna H. Trojnar;Christopher E. Valdivia;Khalifa M. Azizur-Rahman;Ray R. LaPierre;Karin Hinzer;Jacob J. Krich
Author_Institution :
SUNLAB, School of Electrical Engineering and Computer Science, University of Ottawa, Ontario, K1N 6N5, Canada
fDate :
6/1/2015 12:00:00 AM
Abstract :
We have developed a fully-coupled optoelectronic device model integrating two commercial software packages: COMSOL Multiphysics and Synopsys TCAD Sentaurus. This model is used to optimize GaAs nanowire solar cells containing a vertical p-n junction with passivating shell. We investigate the impact of the nanowire diameter, height, emitter thickness, square-array periodicity, and doping on the cell performance. This model allows quantitative optimization of device parameters. Under normal-incidence 1-sun AM1.5D illumination and with attainable material parameters, a design capable of reaching efficiency over 22.2% is reported.
Keywords :
"Mathematical model","Photovoltaic cells","Doping","Optical polarization","Semiconductor process modeling","Optical reflection","Geometry"
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd
DOI :
10.1109/PVSC.2015.7355660
