TY - GEN
T1 - Modeling of silicon heterojunction solar cells
AU - Luppina, Pietro
AU - Lugli, Paolo
AU - Goodnick, Stephen M.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/12/14
Y1 - 2015/12/14
N2 - Here we present modeling results on crystalline Si (c-Si)/amorphous Si (a-Si) heterojunction solar cells using a physical simulation which includes various models for the defect states in the a-Si barriers, as well as explicit models for the ITO emitter contact. We investigate the impact of the band offsets and barrier heights of the a-Si/c-Si interface, particularly in terms of the open circuit voltage. It is also shown that the solar cell performance is sensitively dependent on the quality of the a-Si in terms of defect states and their distribution, particularly on the emitter side. Finally, we analyze the role of tunneling and thermionic emission across the heterointerface in terms of transport from the Si to the ITO contact layer.
AB - Here we present modeling results on crystalline Si (c-Si)/amorphous Si (a-Si) heterojunction solar cells using a physical simulation which includes various models for the defect states in the a-Si barriers, as well as explicit models for the ITO emitter contact. We investigate the impact of the band offsets and barrier heights of the a-Si/c-Si interface, particularly in terms of the open circuit voltage. It is also shown that the solar cell performance is sensitively dependent on the quality of the a-Si in terms of defect states and their distribution, particularly on the emitter side. Finally, we analyze the role of tunneling and thermionic emission across the heterointerface in terms of transport from the Si to the ITO contact layer.
KW - Heterojunction
KW - a-Si/c-Si heteostructures
KW - amorphous silicon
KW - crystalline silicon
KW - silicon solar cells
UR - https://www.scopus.com/pages/publications/84961613517
UR - https://www.scopus.com/pages/publications/84961613517#tab=citedBy
U2 - 10.1109/PVSC.2015.7356049
DO - 10.1109/PVSC.2015.7356049
M3 - Conference contribution
AN - SCOPUS:84961613517
T3 - 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
BT - 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Y2 - 14 June 2015 through 19 June 2015
ER -