@inproceedings{d738acfe55d34b2393193d78829c0b88,
title = "Modeling of a gallium phosphide/silicon heterojunction solar cells",
abstract = "Here we use a coupled optical and electrical model to study the performance of heterojunction Si (HJSi) solar cells based on gallium phosphide (GaP)/crystalline Silicon (c-Si) structures in comparison with Si (c-Si)/amorphous Si (a-Si) HIT solar cells. The simulations are based on a numerical drift-diffusion model performed with the Sentaurus TCAD tool. We investigate the impact of highly n-doped indium tin oxide (ITO n+) window layer for the case of flat and textured surface with different ITO thicknesses. Simulation results indicates that GaP used in the top layer of a HJSi solar cell is a good candidate to improve the performance and reach efficiencies in excess of of the 25.6% currently reached for a HIT cells with a-Si. We perform a detailed simulation study of a fabricated solar cells structure for various emitter designs, extracting key figures of merit like efficiency, short-circuit current and open circuit voltage; our values are in good agreement with recently reported solar cells. After having validated our simulation approach, different optimization techniques are investigated in order to maximize the performance of the solar cell.",
keywords = "GaP/c-Si heteostructures, Heterojunction, Photovoltaic cells, Silicon solar cells, Texturing",
author = "Pietro Luppina and Stuart Bowden and Paolo Lugli and Stephen Goodnick",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 44th IEEE Photovoltaic Specialist Conference, PVSC 2017 ; Conference date: 25-06-2017 Through 30-06-2017",
year = "2017",
doi = "10.1109/PVSC.2017.8366570",
language = "English (US)",
series = "2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "3240--3244",
booktitle = "2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017",
}