TY - JOUR
T1 - Toward Stable Monolithic Perovskite/Silicon Tandem Photovoltaics
T2 - A Six-Month Outdoor Performance Study in a Hot and Humid Climate
AU - De Bastiani, Michele
AU - Van Kerschaver, Emmanuel
AU - Jeangros, Quentin
AU - Ur Rehman, Atteq
AU - Aydin, Erkan
AU - Isikgor, Furkan H.
AU - Mirabelli, Alessandro J.
AU - Babics, Maxime
AU - Liu, Jiang
AU - Zhumagali, Shynggys
AU - Ugur, Esma
AU - Harrison, George T.
AU - Allen, Thomas G.
AU - Chen, Bin
AU - Hou, Yi
AU - Shikin, Semen
AU - Sargent, Edward H.
AU - Ballif, Christophe
AU - Salvador, Michael
AU - De Wolf, Stefaan
N1 - Funding Information:
This work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2018-CPF-3669.02, KAUST OSR-CARF URF/1/3079-33-01, KAUST OSR-CRG RF/1/3383, KAUST OSR-CRG2018-3737, and IED OSR-2019-4208. This work was supported in part by the US Department of the Navy, Office of Naval Research (Grant Award No. N00014-20-1-2572). Financial support from the Swiss Federal Office of Energy (SI/501804-01 INTENT), the Swiss National Science Foundation (176552 Bridge Power, CRSII5_171000 Sinergia Episode), is acknowledged.
Publisher Copyright:
© 2021 American Chemical Society. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Perovskite/silicon tandem solar cells are emerging as a high-efficiency and prospectively cost-effective solar technology with great promise for deployment at the utility scale. However, despite the remarkable performance progress reported lately, assuring sufficient device stability - particularly of the perovskite top cell - remains a challenge on the path to practical impact. In this work, we analyze the outdoor performance of encapsulated bifacial perovskite/silicon tandems, by carrying out field-testing in Saudi Arabia. Over a six month experiment, we find that the open circuit voltage retains its initial value, whereas the fill factor degrades, which is found to have two causes. A first degradation mechanism is linked with ion migration in the perovskite and is largely reversible overnight, though it does induce hysteretic behavior over time. A second, irreversible, mechanism is caused by corrosion of the silver metal top contact with the formation of silver iodide.
AB - Perovskite/silicon tandem solar cells are emerging as a high-efficiency and prospectively cost-effective solar technology with great promise for deployment at the utility scale. However, despite the remarkable performance progress reported lately, assuring sufficient device stability - particularly of the perovskite top cell - remains a challenge on the path to practical impact. In this work, we analyze the outdoor performance of encapsulated bifacial perovskite/silicon tandems, by carrying out field-testing in Saudi Arabia. Over a six month experiment, we find that the open circuit voltage retains its initial value, whereas the fill factor degrades, which is found to have two causes. A first degradation mechanism is linked with ion migration in the perovskite and is largely reversible overnight, though it does induce hysteretic behavior over time. A second, irreversible, mechanism is caused by corrosion of the silver metal top contact with the formation of silver iodide.
UR - http://www.scopus.com/inward/record.url?scp=85113362539&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85113362539&partnerID=8YFLogxK
U2 - 10.1021/acsenergylett.1c01018
DO - 10.1021/acsenergylett.1c01018
M3 - Article
AN - SCOPUS:85113362539
SN - 2380-8195
VL - 6
SP - 2944
EP - 2951
JO - ACS Energy Letters
JF - ACS Energy Letters
ER -
