TY - GEN
T1 - < 700 mV Open-Circuit Voltages on Defect-Engineered P-type Silicon Heterojunction Solar Cells on Czochralski and Multicrystalline Wafers
AU - Chen, Daniel
AU - Kim, Moonyong
AU - Shi, Jianwei
AU - Yu, Zhengshan
AU - Leilaeioun, Ashling Mehdi
AU - Liu, Shaoyang
AU - Stefani, Bruno
AU - Wenham, Stuart
AU - Einhaus, Roland
AU - Holman, Zachary
AU - Hallam, Brett
N1 - Funding Information:
This work has been supported by the Australian Government through the Australian Center for Advanced Photovoltaics (ACAP) and the Australian Renewable Energy Agency (ARENA) (1-SRI001), as well as by the Engineering Research Center Program of the National Science Foundation and the Department of Energy under NSF Cooperative Agreement No. EEC-1041895. Brett Hallam would like to acknowledge the support of the Australian Research Council (ARC) through a Discovery Early Career Researcher Award (DE170100620). Daniel Chen would like to acknowledge the support and contribution of the Australian Commonwealth Government through the Australian Government Research Training Program Scholarship. The views expressed herein are not necessarily the views of the Australian Government, and the Australian Government does not accept responsibility for any information or advice contained herein.The authors would also like to acknowledge Duc Huy Dao and Ly Mai for assistance in sample fabrication.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/26
Y1 - 2018/11/26
N2 - Silicon heterojunction solar cells are primarily fabricated with high-quality wafers, resulting in a higher manufacturing cost than mainstream solar cells. We explore the impact of defect engineering methods of hydrogenation and gettering into silicon heterojunction solar cells fabricated using low-lifetime, commercial-grade, p-type, Czochralski-grown monocrystalline and high-performance multicrystalline wafers. We demonstrate solar cells with independently verified opencircuit voltages of 707 mV and 702 mV on monocrystalline and multicrystalline silicon wafers, respectively, thus exceeding 700 mV on multicrystalline silicon materials for the first time in the world. These remarkably high open-circuit voltages reveal the potential of cost-competitive low-quality p-type silicon wafers for making high-efficiency solar cells with efficiencies without the need of shifting towards expensive, high-quality wafers.
AB - Silicon heterojunction solar cells are primarily fabricated with high-quality wafers, resulting in a higher manufacturing cost than mainstream solar cells. We explore the impact of defect engineering methods of hydrogenation and gettering into silicon heterojunction solar cells fabricated using low-lifetime, commercial-grade, p-type, Czochralski-grown monocrystalline and high-performance multicrystalline wafers. We demonstrate solar cells with independently verified opencircuit voltages of 707 mV and 702 mV on monocrystalline and multicrystalline silicon wafers, respectively, thus exceeding 700 mV on multicrystalline silicon materials for the first time in the world. These remarkably high open-circuit voltages reveal the potential of cost-competitive low-quality p-type silicon wafers for making high-efficiency solar cells with efficiencies without the need of shifting towards expensive, high-quality wafers.
KW - gettering
KW - hydrogenation
KW - passivation
KW - silicon heterojunction
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U2 - 10.1109/PVSC.2018.8548239
DO - 10.1109/PVSC.2018.8548239
M3 - Conference contribution
AN - SCOPUS:85059913401
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 - 1677
EP - 1681
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 -