TY - GEN
T1 - A Multiscale Model to Study Transport in Silicon Heterojunction Solar Cells
AU - Muralidharan, Pradyumna
AU - Bowden, Stuart
AU - Goodnick, Stephen
AU - Vasileska, Dragica
N1 - Funding Information:
This material is based upon work primarily supported by the Engineering Research Center Program of the National Science Foundation and the Office of Energy Efficiency and Renewable Energy of the Department of Energy under NSF Cooperative Agreement No. EECǦ1041895. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect those of the National Science Foundation or Department of Energy.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/26
Y1 - 2018/11/26
N2 - Silicon heterojunction solar cells comprised of crystalline silicon and a thin amorphous silicon top layer, have consistently achieved record device efficiencies in recent years for Si devices. In particular, the intrinsic amorphous layer provides passivation at the a-Si/c-Si heterointerface that facilitates high Vocs. However, this heterointerface also results in high fields where hot carrier effects may dominate, in contrast to low-field diffusive transport which is prevalent in the bulk of the device. In this paper we present a fully coupled self-consistent drift-diffusion-Monte Carlo (DD-MC) solver that connects the Lowfield physics of the drift-diffusion model with the high-field physics of the Monte Carlo domain at the interface.
AB - Silicon heterojunction solar cells comprised of crystalline silicon and a thin amorphous silicon top layer, have consistently achieved record device efficiencies in recent years for Si devices. In particular, the intrinsic amorphous layer provides passivation at the a-Si/c-Si heterointerface that facilitates high Vocs. However, this heterointerface also results in high fields where hot carrier effects may dominate, in contrast to low-field diffusive transport which is prevalent in the bulk of the device. In this paper we present a fully coupled self-consistent drift-diffusion-Monte Carlo (DD-MC) solver that connects the Lowfield physics of the drift-diffusion model with the high-field physics of the Monte Carlo domain at the interface.
KW - amorphous silicon
KW - device modeling
KW - heterojunction
KW - multiscale
KW - silicon
KW - solar cells
UR - http://www.scopus.com/inward/record.url?scp=85059902212&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059902212&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2018.8547337
DO - 10.1109/PVSC.2018.8547337
M3 - Conference contribution
AN - SCOPUS:85059902212
T3 - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
SP - 3200
EP - 3203
BT - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Y2 - 10 June 2018 through 15 June 2018
ER -