Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon

Cao Yu; Wei Shi; Zhiliang Liu; Shibo Wang; Zhenhai Yang; Ke Fan; Kun Gao; Jun Yang; Minghui Li; Wenhao Li; Yao Li; Fengxian Cao; Liu Yang; Mingyu Ma; Hao Liang; Qunyu Bi; Xingda An; Mengsha Cao; Chen Wei Peng; Jian Zhou; Haitao Huang; Jiang Liu; Chuanxiao Xiao; Zhijun Ning; Yuan Cheng; Shaofei Yang; Kai Yao; Stefaan De Wolf; Xinbo Yang; Xiaohong Zhang

doi:10.1002/adma.202518251

Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon

Cao Yu
, Wei Shi
, Zhiliang Liu
, Shibo Wang
, Zhenhai Yang
, Ke Fan
, Kun Gao
, Jun Yang
, Minghui Li
, Wenhao Li
, Yao Li
, Fengxian Cao
, Liu Yang
, Mingyu Ma
, Hao Liang
, Qunyu Bi
, Xingda An
, Mengsha Cao
, Chen Wei Peng
, Jian Zhou

Haitao Huang, Jiang Liu, Chuanxiao Xiao, Zhijun Ning, Yuan Cheng, Shaofei Yang, Kai Yao, Stefaan De Wolf, Xinbo Yang, Xiaohong Zhang

Research output: Contribution to journal › Article › Research › peer-review

9 Citations (Scopus)

Abstract

Conformal deposition of perovskite on fully textured silicon bottom cells using low-cost solution processing remains challenging, limiting the process compatibility and power conversion efficiency (PCE) of perovskite/silicon tandem solar cells. Herein, this challenge through synergetic engineering of the perovskite composition and tunneling recombination junction (TRJ) is addressed. The utilization of wide bandgap perovskite with high cesium content and silicon heterojunction (SHJ) bottom cell with hydrogenated nanocrystalline silicon (nc-Si:H) TRJ is found to enable conformal perovskite on fully textured SHJ bottom cells using solution processing. A remarkable PCE of 33.38% (certified 32.94%) is achieved for the tandem, featuring a record short-circuit current density of 21.21 mA cm⁻². The tandem displays excellent stability, retaining 80% of its initial efficiency after 2324 h of operation at maximum power point (AM 1.5G, 25 °C).

Original language	English
Article number	e18251
Number of pages	13
Journal	Advanced Materials
Volume	38
Issue number	8
DOIs	https://doi.org/10.1002/adma.202518251
Publication status	Published - 6 Feb 2026

Keywords

conformal
fully textured
hydrogenated nanocrystalline silicon tunneling recombination junction
perovskite/silicon tandem solar cells
solution-process

Access to Document

10.1002/adma.202518251

Cite this

Yu, C., Shi, W., Liu, Z., Wang, S., Yang, Z., Fan, K., Gao, K., Yang, J., Li, M., Li, W., Li, Y., Cao, F., Yang, L., Ma, M., Liang, H., Bi, Q., An, X., Cao, M., Peng, C. W., ... Zhang, X. (2026). Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon. Advanced Materials, 38(8), Article e18251. https://doi.org/10.1002/adma.202518251

@article{7631a177493b43ed8d29a1cfed6118ae,

title = "Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon",

abstract = "Conformal deposition of perovskite on fully textured silicon bottom cells using low-cost solution processing remains challenging, limiting the process compatibility and power conversion efficiency (PCE) of perovskite/silicon tandem solar cells. Herein, this challenge through synergetic engineering of the perovskite composition and tunneling recombination junction (TRJ) is addressed. The utilization of wide bandgap perovskite with high cesium content and silicon heterojunction (SHJ) bottom cell with hydrogenated nanocrystalline silicon (nc-Si:H) TRJ is found to enable conformal perovskite on fully textured SHJ bottom cells using solution processing. A remarkable PCE of 33.38\% (certified 32.94\%) is achieved for the tandem, featuring a record short-circuit current density of 21.21 mA cm−2. The tandem displays excellent stability, retaining 80\% of its initial efficiency after 2324 h of operation at maximum power point (AM 1.5G, 25 °C).",

keywords = "conformal, fully textured, hydrogenated nanocrystalline silicon tunneling recombination junction, perovskite/silicon tandem solar cells, solution-process",

author = "Cao Yu and Wei Shi and Zhiliang Liu and Shibo Wang and Zhenhai Yang and Ke Fan and Kun Gao and Jun Yang and Minghui Li and Wenhao Li and Yao Li and Fengxian Cao and Liu Yang and Mingyu Ma and Hao Liang and Qunyu Bi and Xingda An and Mengsha Cao and Peng, \{Chen Wei\} and Jian Zhou and Haitao Huang and Jiang Liu and Chuanxiao Xiao and Zhijun Ning and Yuan Cheng and Shaofei Yang and Kai Yao and \{De Wolf\}, Stefaan and Xinbo Yang and Xiaohong Zhang",

note = "Publisher Copyright: {\textcopyright} 2025 Wiley-VCH GmbH.",

year = "2026",

month = feb,

day = "6",

doi = "10.1002/adma.202518251",

language = "English",

volume = "38",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "Wiley-VCH Verlag GmbH \& Co. KGaA",

number = "8",

}

Yu, C, Shi, W, Liu, Z, Wang, S, Yang, Z, Fan, K, Gao, K, Yang, J, Li, M, Li, W, Li, Y, Cao, F, Yang, L, Ma, M, Liang, H, Bi, Q, An, X, Cao, M, Peng, CW, Zhou, J, Huang, H, Liu, J, Xiao, C, Ning, Z, Cheng, Y, Yang, S, Yao, K, De Wolf, S, Yang, X & Zhang, X 2026, 'Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon', Advanced Materials, vol. 38, no. 8, e18251. https://doi.org/10.1002/adma.202518251

TY - JOUR

T1 - Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon

AU - Yu, Cao

AU - Shi, Wei

AU - Liu, Zhiliang

AU - Wang, Shibo

AU - Yang, Zhenhai

AU - Fan, Ke

AU - Gao, Kun

AU - Yang, Jun

AU - Li, Minghui

AU - Li, Wenhao

AU - Li, Yao

AU - Cao, Fengxian

AU - Yang, Liu

AU - Ma, Mingyu

AU - Liang, Hao

AU - Bi, Qunyu

AU - An, Xingda

AU - Cao, Mengsha

AU - Peng, Chen Wei

AU - Zhou, Jian

AU - Huang, Haitao

AU - Liu, Jiang

AU - Xiao, Chuanxiao

AU - Ning, Zhijun

AU - Cheng, Yuan

AU - Yang, Shaofei

AU - Yao, Kai

AU - De Wolf, Stefaan

AU - Yang, Xinbo

AU - Zhang, Xiaohong

PY - 2026/2/6

Y1 - 2026/2/6

N2 - Conformal deposition of perovskite on fully textured silicon bottom cells using low-cost solution processing remains challenging, limiting the process compatibility and power conversion efficiency (PCE) of perovskite/silicon tandem solar cells. Herein, this challenge through synergetic engineering of the perovskite composition and tunneling recombination junction (TRJ) is addressed. The utilization of wide bandgap perovskite with high cesium content and silicon heterojunction (SHJ) bottom cell with hydrogenated nanocrystalline silicon (nc-Si:H) TRJ is found to enable conformal perovskite on fully textured SHJ bottom cells using solution processing. A remarkable PCE of 33.38% (certified 32.94%) is achieved for the tandem, featuring a record short-circuit current density of 21.21 mA cm−2. The tandem displays excellent stability, retaining 80% of its initial efficiency after 2324 h of operation at maximum power point (AM 1.5G, 25 °C).

AB - Conformal deposition of perovskite on fully textured silicon bottom cells using low-cost solution processing remains challenging, limiting the process compatibility and power conversion efficiency (PCE) of perovskite/silicon tandem solar cells. Herein, this challenge through synergetic engineering of the perovskite composition and tunneling recombination junction (TRJ) is addressed. The utilization of wide bandgap perovskite with high cesium content and silicon heterojunction (SHJ) bottom cell with hydrogenated nanocrystalline silicon (nc-Si:H) TRJ is found to enable conformal perovskite on fully textured SHJ bottom cells using solution processing. A remarkable PCE of 33.38% (certified 32.94%) is achieved for the tandem, featuring a record short-circuit current density of 21.21 mA cm−2. The tandem displays excellent stability, retaining 80% of its initial efficiency after 2324 h of operation at maximum power point (AM 1.5G, 25 °C).

KW - conformal

KW - fully textured

KW - hydrogenated nanocrystalline silicon tunneling recombination junction

KW - perovskite/silicon tandem solar cells

KW - solution-process

UR - https://www.scopus.com/pages/publications/105022837967

U2 - 10.1002/adma.202518251

DO - 10.1002/adma.202518251

M3 - Article

C2 - 41284559

AN - SCOPUS:105022837967

SN - 0935-9648

VL - 38

JO - Advanced Materials

JF - Advanced Materials

IS - 8

M1 - e18251

ER -

Efficient and Stable Tandem Solar Cells With Conformal Solution-Processed Perovskite on Fully Textured Silicon

Abstract

Keywords

Access to Document

Other files and links

Cite this