Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Induce uniform vertical grain growth via double-site anchoring retards crystallization for perovskite/silicon tandem solar cells

You, Wei ; Du, Hao ; Ma, Zhu LU ; Li, Jiawen ; Gou, Fuchun ; Li, Yixian ; Zhang, Qian ; Chen, Bo ; Liu, Kai and Xiang, Dengqian , et al. (2026) In Nano Energy 154.
Abstract

The development of wide bandgap perovskite solar cells (WBG PSCs) holds significant promise for advancing tandem solar cells. However, the intrinsic rapid crystallization kinetics severely impedes the vertical-oriented growth and homogeneous film formation of perovskite crystals, leading to high defect density and compromised device performance. This work proposes an innovative molecular interfacial dual-site anchoring strategy by introducing Sodium 4-Chlorobenzenesulfonate (SCBS) to effectively regulate the perovskite crystallization process. SCBS can coordinate with multiple ions in the perovskite precursors, thereby significantly retarding crystallization kinetics and promoting vertical-oriented and homogeneous grain growth.... (More)

The development of wide bandgap perovskite solar cells (WBG PSCs) holds significant promise for advancing tandem solar cells. However, the intrinsic rapid crystallization kinetics severely impedes the vertical-oriented growth and homogeneous film formation of perovskite crystals, leading to high defect density and compromised device performance. This work proposes an innovative molecular interfacial dual-site anchoring strategy by introducing Sodium 4-Chlorobenzenesulfonate (SCBS) to effectively regulate the perovskite crystallization process. SCBS can coordinate with multiple ions in the perovskite precursors, thereby significantly retarding crystallization kinetics and promoting vertical-oriented and homogeneous grain growth. Moreover, SCBS simultaneously passivates bulk defects and effectively suppresses light-induced halide phase separation. Consequently, the 1.68 eV of WBG PSCs achieved a power conversion efficiency (PCE) of 22.98% and an open-circuit voltage (VOC) of 1.26 V. Furthermore, the unencapsulated optimized devices retained 90% of initial efficiency after 3000 h under a nitrogen atmosphere, showcasing excellent long-term stability. Notably, the monolithic perovskite/silicon tandem solar cells (PSTSCs) achieved a PCE of 32.08%, a VOC of 1.951 V, and a hysteresis index of 0.31%. Therefore, the dual-site anchoring retards crystallization to induce uniform vertical grain growth strategy offers a promising pathway for high-performance and stable PSTSCs.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Dual-site anchoring, Perovskite/silicon tandem solar cells, Retards crystallization, Uniform vertical grain growth, Wide bandgap perovskite
in
Nano Energy
volume
154
article number
112034
publisher
Elsevier
external identifiers
  • scopus:105038859539
ISSN
2211-2855
DOI
10.1016/j.nanoen.2026.112034
language
English
LU publication?
yes
id
01c32fe2-ca9d-417a-8af7-de5daff01deb
date added to LUP
2026-08-25 14:16:07
date last changed
2026-08-25 14:16:55
@article{01c32fe2-ca9d-417a-8af7-de5daff01deb,
  abstract     = {{<p>The development of wide bandgap perovskite solar cells (WBG PSCs) holds significant promise for advancing tandem solar cells. However, the intrinsic rapid crystallization kinetics severely impedes the vertical-oriented growth and homogeneous film formation of perovskite crystals, leading to high defect density and compromised device performance. This work proposes an innovative molecular interfacial dual-site anchoring strategy by introducing Sodium 4-Chlorobenzenesulfonate (SCBS) to effectively regulate the perovskite crystallization process. SCBS can coordinate with multiple ions in the perovskite precursors, thereby significantly retarding crystallization kinetics and promoting vertical-oriented and homogeneous grain growth. Moreover, SCBS simultaneously passivates bulk defects and effectively suppresses light-induced halide phase separation. Consequently, the 1.68 eV of WBG PSCs achieved a power conversion efficiency (PCE) of 22.98% and an open-circuit voltage (V<sub>OC</sub>) of 1.26 V. Furthermore, the unencapsulated optimized devices retained 90% of initial efficiency after 3000 h under a nitrogen atmosphere, showcasing excellent long-term stability. Notably, the monolithic perovskite/silicon tandem solar cells (PSTSCs) achieved a PCE of 32.08%, a V<sub>OC</sub> of 1.951 V, and a hysteresis index of 0.31%. Therefore, the dual-site anchoring retards crystallization to induce uniform vertical grain growth strategy offers a promising pathway for high-performance and stable PSTSCs.</p>}},
  author       = {{You, Wei and Du, Hao and Ma, Zhu and Li, Jiawen and Gou, Fuchun and Li, Yixian and Zhang, Qian and Chen, Bo and Liu, Kai and Xiang, Dengqian and Lv, Zhuo and Huang, Cheng and Yu, Jian and Du, Zetao and Xiang, Xiaojiao and Nie, Jixin and Xia, Zhengduo and Hu, Huachuan and Liu, Chenlu and Xiang, Yan and Sun, Kuan and Feng, Wenyong and Lin, Zedong and Hu, Yuchao and Zhang, Yifeng and Long, Wei and Xing, Guoqiang and Zheng, Kaibo}},
  issn         = {{2211-2855}},
  keywords     = {{Dual-site anchoring; Perovskite/silicon tandem solar cells; Retards crystallization; Uniform vertical grain growth; Wide bandgap perovskite}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nano Energy}},
  title        = {{Induce uniform vertical grain growth via double-site anchoring retards crystallization for perovskite/silicon tandem solar cells}},
  url          = {{http://dx.doi.org/10.1016/j.nanoen.2026.112034}},
  doi          = {{10.1016/j.nanoen.2026.112034}},
  volume       = {{154}},
  year         = {{2026}},
}