Fan, R., Song, Q., Huang, Z., Ma, Y., Xiao, M., Huang, X., Zai, H., Kang, J., Xie, H., Gao, Y., Wang, L., Zhang, Y., Wang, L., Wang, F., Zhang, X., Zhou, W., Li, N., Wang, X., Bai, Y., ... Zhou, H. (2023). Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells. Angewandte Chemie - International Edition, 62(24), Article e202303176. https://doi.org/10.1002/anie.202303176
Fan, Rundong ; Song, Qizhen ; Huang, Zijian et al. / Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells. In: Angewandte Chemie - International Edition. 2023 ; Vol. 62, No. 24.
@article{e5810062186647f29213425b583cb1a7,
title = "Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells",
abstract = "Possessed with advantageous optoelectronic properties, perovskites have boosted the rapid development of solution-processed solar cells. The performance of perovskite solar cells (PSCs) is significantly weakened by the carrier loss at grain boundary grooves (GBGs); however, it receives limited attention and there lacks effective approach to solve this issue. Herein, for the first time, we constructed the tungstate/perovskite heterointerface via a “two step” in situ reaction approach that provides effective defect passivation and ensures efficient carrier dynamics at the GBGs. The exposed perovskite at grain boundaries is converted to wide-band-gap PbWO4 via an in-situ reaction between Pb2+ and tungstate ions, which passivate defects due to the strong ionic bonding. Moreover, recombination loss is further suppressed via the heterointerface energetics modification based on an additional transformation from PbWO4 to CaWO4. PSCs based on this groove modification strategy showed good universality in both normal and inverted structure, with an improved efficiency of 23.25 % in the n-i-p device and 23.33 % in the p-i-n device. Stable power output of the modified device could maintain 91.7 % after around 1100 h, and the device efficiency could retain 92.5 % after aging in air for around 2110 h, and 93.1 % after aging at 85 °C in N2 for 972 h.",
keywords = "Grain-Boundary Grooves, Passivation, Perovskite Solar Cells, Stability, Tungstate",
author = "Rundong Fan and Qizhen Song and Zijian Huang and Yue Ma and Mengqi Xiao and Xudan Huang and Huachao Zai and Jiaqian Kang and Haipeng Xie and Yongli Gao and Lina Wang and Yu Zhang and Lan Wang and Feng Wang and Xiao Zhang and Wentao Zhou and Nengxu Li and Xueyun Wang and Yang Bai and Guilin Liu and Qi Chen and Lifen Wang and Huanping Zhou",
note = "Publisher Copyright: {\textcopyright} 2023 Wiley-VCH GmbH.",
year = "2023",
month = jun,
day = "12",
doi = "10.1002/anie.202303176",
language = "English",
volume = "62",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley and Sons Ltd",
number = "24",
}
Fan, R, Song, Q, Huang, Z, Ma, Y, Xiao, M, Huang, X, Zai, H, Kang, J, Xie, H, Gao, Y, Wang, L, Zhang, Y, Wang, L, Wang, F, Zhang, X, Zhou, W, Li, N, Wang, X, Bai, Y, Liu, G, Chen, Q, Wang, L & Zhou, H 2023, 'Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells', Angewandte Chemie - International Edition, vol. 62, no. 24, e202303176. https://doi.org/10.1002/anie.202303176
Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells. / Fan, Rundong; Song, Qizhen; Huang, Zijian et al.
In:
Angewandte Chemie - International Edition, Vol. 62, No. 24, e202303176, 12.06.2023.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells
AU - Fan, Rundong
AU - Song, Qizhen
AU - Huang, Zijian
AU - Ma, Yue
AU - Xiao, Mengqi
AU - Huang, Xudan
AU - Zai, Huachao
AU - Kang, Jiaqian
AU - Xie, Haipeng
AU - Gao, Yongli
AU - Wang, Lina
AU - Zhang, Yu
AU - Wang, Lan
AU - Wang, Feng
AU - Zhang, Xiao
AU - Zhou, Wentao
AU - Li, Nengxu
AU - Wang, Xueyun
AU - Bai, Yang
AU - Liu, Guilin
AU - Chen, Qi
AU - Wang, Lifen
AU - Zhou, Huanping
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2023/6/12
Y1 - 2023/6/12
N2 - Possessed with advantageous optoelectronic properties, perovskites have boosted the rapid development of solution-processed solar cells. The performance of perovskite solar cells (PSCs) is significantly weakened by the carrier loss at grain boundary grooves (GBGs); however, it receives limited attention and there lacks effective approach to solve this issue. Herein, for the first time, we constructed the tungstate/perovskite heterointerface via a “two step” in situ reaction approach that provides effective defect passivation and ensures efficient carrier dynamics at the GBGs. The exposed perovskite at grain boundaries is converted to wide-band-gap PbWO4 via an in-situ reaction between Pb2+ and tungstate ions, which passivate defects due to the strong ionic bonding. Moreover, recombination loss is further suppressed via the heterointerface energetics modification based on an additional transformation from PbWO4 to CaWO4. PSCs based on this groove modification strategy showed good universality in both normal and inverted structure, with an improved efficiency of 23.25 % in the n-i-p device and 23.33 % in the p-i-n device. Stable power output of the modified device could maintain 91.7 % after around 1100 h, and the device efficiency could retain 92.5 % after aging in air for around 2110 h, and 93.1 % after aging at 85 °C in N2 for 972 h.
AB - Possessed with advantageous optoelectronic properties, perovskites have boosted the rapid development of solution-processed solar cells. The performance of perovskite solar cells (PSCs) is significantly weakened by the carrier loss at grain boundary grooves (GBGs); however, it receives limited attention and there lacks effective approach to solve this issue. Herein, for the first time, we constructed the tungstate/perovskite heterointerface via a “two step” in situ reaction approach that provides effective defect passivation and ensures efficient carrier dynamics at the GBGs. The exposed perovskite at grain boundaries is converted to wide-band-gap PbWO4 via an in-situ reaction between Pb2+ and tungstate ions, which passivate defects due to the strong ionic bonding. Moreover, recombination loss is further suppressed via the heterointerface energetics modification based on an additional transformation from PbWO4 to CaWO4. PSCs based on this groove modification strategy showed good universality in both normal and inverted structure, with an improved efficiency of 23.25 % in the n-i-p device and 23.33 % in the p-i-n device. Stable power output of the modified device could maintain 91.7 % after around 1100 h, and the device efficiency could retain 92.5 % after aging in air for around 2110 h, and 93.1 % after aging at 85 °C in N2 for 972 h.
KW - Grain-Boundary Grooves
KW - Passivation
KW - Perovskite Solar Cells
KW - Stability
KW - Tungstate
UR - http://www.scopus.com/inward/record.url?scp=85156146470&partnerID=8YFLogxK
U2 - 10.1002/anie.202303176
DO - 10.1002/anie.202303176
M3 - Article
C2 - 37060295
AN - SCOPUS:85156146470
SN - 1433-7851
VL - 62
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 24
M1 - e202303176
ER -
Fan R, Song Q, Huang Z, Ma Y, Xiao M, Huang X et al. Tungstate-mediated In-situ Passivation of Grain Boundary Grooves in Perovskite Solar Cells. Angewandte Chemie - International Edition. 2023 Jun 12;62(24):e202303176. doi: 10.1002/anie.202303176