Perovskite–organic tandem solar cells with superior reverse-bias stability

Jiaming Huang; Yu Han; Zhiwei Ren; Guang Yang; Yongmin Luo; Lei Cheng; Like Huang; Sudhi Mahadevan; Wei Song; Chujun Zhang; Bo Yuan; Arsenii S. Portniagin; Qiong Liang; Jiehao Fu; Jiyao Zhang; Hrisheekesh Thachoth Chandran; Xiaokang Sun; Yung-Kang Peng; Hanlin Hu; Jinhui Tong; Han Yu; Andrey L. Rogach; Sai-Wing Tsang; Junliang Yang; Ziyi Ge; Jiaying Wu; Jinsong Huang; Gang Li

doi:10.1038/s41563-026-02541-6

Perovskite–organic tandem solar cells with superior reverse-bias stability

Jiaming Huang (Co-first Author)
, Yu Han (Co-first Author)
, Zhiwei Ren (Co-first Author)
, Guang Yang (Co-first Author)
, Yongmin Luo (Co-first Author)
, Lei Cheng
, Like Huang
, Sudhi Mahadevan
, Wei Song
, Chujun Zhang
, Bo Yuan
, Arsenii S. Portniagin
, Qiong Liang
, Jiehao Fu
, Jiyao Zhang
, Hrisheekesh Thachoth Chandran
, Xiaokang Sun
, Yung-Kang Peng
, Hanlin Hu
, Jinhui Tong

Han Yu, Andrey L. Rogach, Sai-Wing Tsang, Junliang Yang, Ziyi Ge, Jiaying Wu^*, Jinsong Huang^*, Gang Li^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

The industrial deployment of thin-film solar cells faces challenges under reverse bias, particularly concerning perovskite materials with poor reverse-bias stability. Meanwhile, the reverse-bias characteristics of organic solar cells (OSCs) remain underexplored. This study first elucidates the mechanism that reverse tunnelling in OSCs, fundamentally dominated by deep trap state within a bulk heterojunction, triggering reversible/irreversible breakdowns under reverse bias. Building on this, we demonstrated high-performance OSCs with superior irreversible breakdown voltage exceeding –35 V by modulating the deep trap state through suppressing an isolated acceptor cluster in the donor–acceptor intermix region. Moreover, through strategically shielding perovskite by OSC with suppressed reverse tunnelling, n–i–p perovskite–organic tandem solar cells maintain over 90% of the initial efficiency when subjected to –40 V. These tandem devices retain 90% and 97% of the initial efficiency after stressing at –20 V for 12 h and –4.5 V for 2,000 h, respectively, outperforming all existing thin-film solar technologies. The exceptional reverse-bias stability under shadowing conditions was further demonstrated in scalable perovskite–organic tandem solar cell minimodules. © The Author(s), under exclusive licence to Springer Nature Limited 2026.

Original language	English
Number of pages	18
Journal	Nature Materials
Online published	23 Mar 2026
DOIs	https://doi.org/10.1038/s41563-026-02541-6
Publication status	Online published - 23 Mar 2026

Funding

This work is supported by Research Grants Council of Hong Kong (project numbers 15307922, CRF C7018-20G and C4005-22Y) (G.L.), RGC Senior Research Fellowship Scheme (SRFS2223-5S01) (G.L.), Innovation and Technology Fund–Guangdong-Hong Kong Technology Cooperation Funding Scheme (GHP/380/22GD, MHP/020/23) (G.L.), NSFC-RGC Joint Research Scheme (N_PolyU567/24) (G.L.), National Natural Science Foundation of China (51961165102) (G.L.), the Hong Kong Polytechnic University Internal Research Funds: Sir Sze-yuen Chung Endowed Professorship Fund (8-8480) (G.L.), RISE (U-CDC6) (G.L.), Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices (GDSTC number 2019B121205001) (G.L.), Office of Naval Research under award number N00014-24-1-2107 (Jinsong Huang), Hong Kong Polytechnic University EEE Departmental Fund (4-ZZXK) (Z.R.), RI-iWEAR Strategic Supporting Scheme (1-CD94) (Z.R.), Innovation and Technology Fund ITF-ITSP (ITS/184/23) (Z.R.), National Natural Science Foundation of China (52303249) (J.W.), Guangdong government and the Guangzhou government for funding (2021QN02C110) (J.W.), the Guangzhou Municipal Science and Technology Project (numbers 2023A03J0097 and 2023A03J0003) (J.W.), HKUST Materials Characterization and Preparation Facility Guangzhou (MCPF-GZ) (J.W.) and Green e Materials Laboratory (GeM) (J.W.). J.W. thanks beamline BL40B2 at Super Photon ring-8 GeV (Spring-8), Japan, for providing beam times to perform the GISAXS measurements.

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Huang, J., Han, Y., Ren, Z., Yang, G., Luo, Y., Cheng, L., Huang, L., Mahadevan, S., Song, W., Zhang, C., Yuan, B., Portniagin, A. S., Liang, Q., Fu, J., Zhang, J., Chandran, H. T., Sun, X., Peng, Y.-K., Hu, H., ... Li, G. (2026). Perovskite–organic tandem solar cells with superior reverse-bias stability. Nature Materials. Advance online publication. https://doi.org/10.1038/s41563-026-02541-6

@article{09e85ebf514043a0aa13dbe78f0a6547,

title = "Perovskite–organic tandem solar cells with superior reverse-bias stability",

abstract = "The industrial deployment of thin-film solar cells faces challenges under reverse bias, particularly concerning perovskite materials with poor reverse-bias stability. Meanwhile, the reverse-bias characteristics of organic solar cells (OSCs) remain underexplored. This study first elucidates the mechanism that reverse tunnelling in OSCs, fundamentally dominated by deep trap state within a bulk heterojunction, triggering reversible/irreversible breakdowns under reverse bias. Building on this, we demonstrated high-performance OSCs with superior irreversible breakdown voltage exceeding –35 V by modulating the deep trap state through suppressing an isolated acceptor cluster in the donor–acceptor intermix region. Moreover, through strategically shielding perovskite by OSC with suppressed reverse tunnelling, n–i–p perovskite–organic tandem solar cells maintain over 90\% of the initial efficiency when subjected to –40 V. These tandem devices retain 90\% and 97\% of the initial efficiency after stressing at –20 V for 12 h and –4.5 V for 2,000 h, respectively, outperforming all existing thin-film solar technologies. The exceptional reverse-bias stability under shadowing conditions was further demonstrated in scalable perovskite–organic tandem solar cell minimodules. {\textcopyright} The Author(s), under exclusive licence to Springer Nature Limited 2026.",

author = "Jiaming Huang and Yu Han and Zhiwei Ren and Guang Yang and Yongmin Luo and Lei Cheng and Like Huang and Sudhi Mahadevan and Wei Song and Chujun Zhang and Bo Yuan and Portniagin, \{Arsenii S.\} and Qiong Liang and Jiehao Fu and Jiyao Zhang and Chandran, \{Hrisheekesh Thachoth\} and Xiaokang Sun and Yung-Kang Peng and Hanlin Hu and Jinhui Tong and Han Yu and Rogach, \{Andrey L.\} and Sai-Wing Tsang and Junliang Yang and Ziyi Ge and Jiaying Wu and Jinsong Huang and Gang Li",

year = "2026",

month = mar,

day = "23",

doi = "10.1038/s41563-026-02541-6",

language = "English",

journal = "Nature Materials",

issn = "1476-1122",

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Huang, J, Han, Y, Ren, Z, Yang, G, Luo, Y, Cheng, L, Huang, L, Mahadevan, S, Song, W, Zhang, C, Yuan, B , Portniagin, AS, Liang, Q, Fu, J, Zhang, J, Chandran, HT, Sun, X, Peng, Y-K, Hu, H, Tong, J, Yu, H, Rogach, AL , Tsang, S-W, Yang, J, Ge, Z, Wu, J, Huang, J & Li, G 2026, 'Perovskite–organic tandem solar cells with superior reverse-bias stability', Nature Materials. https://doi.org/10.1038/s41563-026-02541-6

TY - JOUR

T1 - Perovskite–organic tandem solar cells with superior reverse-bias stability

AU - Huang, Jiaming

AU - Han, Yu

AU - Ren, Zhiwei

AU - Yang, Guang

AU - Luo, Yongmin

AU - Cheng, Lei

AU - Huang, Like

AU - Mahadevan, Sudhi

AU - Song, Wei

AU - Zhang, Chujun

AU - Yuan, Bo

AU - Portniagin, Arsenii S.

AU - Liang, Qiong

AU - Fu, Jiehao

AU - Zhang, Jiyao

AU - Chandran, Hrisheekesh Thachoth

AU - Sun, Xiaokang

AU - Peng, Yung-Kang

AU - Hu, Hanlin

AU - Tong, Jinhui

AU - Yu, Han

AU - Rogach, Andrey L.

AU - Tsang, Sai-Wing

AU - Yang, Junliang

AU - Ge, Ziyi

AU - Wu, Jiaying

AU - Huang, Jinsong

AU - Li, Gang

PY - 2026/3/23

Y1 - 2026/3/23

N2 - The industrial deployment of thin-film solar cells faces challenges under reverse bias, particularly concerning perovskite materials with poor reverse-bias stability. Meanwhile, the reverse-bias characteristics of organic solar cells (OSCs) remain underexplored. This study first elucidates the mechanism that reverse tunnelling in OSCs, fundamentally dominated by deep trap state within a bulk heterojunction, triggering reversible/irreversible breakdowns under reverse bias. Building on this, we demonstrated high-performance OSCs with superior irreversible breakdown voltage exceeding –35 V by modulating the deep trap state through suppressing an isolated acceptor cluster in the donor–acceptor intermix region. Moreover, through strategically shielding perovskite by OSC with suppressed reverse tunnelling, n–i–p perovskite–organic tandem solar cells maintain over 90% of the initial efficiency when subjected to –40 V. These tandem devices retain 90% and 97% of the initial efficiency after stressing at –20 V for 12 h and –4.5 V for 2,000 h, respectively, outperforming all existing thin-film solar technologies. The exceptional reverse-bias stability under shadowing conditions was further demonstrated in scalable perovskite–organic tandem solar cell minimodules. © The Author(s), under exclusive licence to Springer Nature Limited 2026.

AB - The industrial deployment of thin-film solar cells faces challenges under reverse bias, particularly concerning perovskite materials with poor reverse-bias stability. Meanwhile, the reverse-bias characteristics of organic solar cells (OSCs) remain underexplored. This study first elucidates the mechanism that reverse tunnelling in OSCs, fundamentally dominated by deep trap state within a bulk heterojunction, triggering reversible/irreversible breakdowns under reverse bias. Building on this, we demonstrated high-performance OSCs with superior irreversible breakdown voltage exceeding –35 V by modulating the deep trap state through suppressing an isolated acceptor cluster in the donor–acceptor intermix region. Moreover, through strategically shielding perovskite by OSC with suppressed reverse tunnelling, n–i–p perovskite–organic tandem solar cells maintain over 90% of the initial efficiency when subjected to –40 V. These tandem devices retain 90% and 97% of the initial efficiency after stressing at –20 V for 12 h and –4.5 V for 2,000 h, respectively, outperforming all existing thin-film solar technologies. The exceptional reverse-bias stability under shadowing conditions was further demonstrated in scalable perovskite–organic tandem solar cell minimodules. © The Author(s), under exclusive licence to Springer Nature Limited 2026.

UR - https://www.scopus.com/pages/publications/105033598617

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105033598617&origin=recordpage

U2 - 10.1038/s41563-026-02541-6

DO - 10.1038/s41563-026-02541-6

M3 - RGC 21 - Publication in refereed journal

SN - 1476-1122

JO - Nature Materials

JF - Nature Materials

ER -

Perovskite–organic tandem solar cells with superior reverse-bias stability

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YCRG-ExtU-Lead: Fundamental-Studies-Guided Growing of High-Quality, Mechanically Stable, Reduced-Dimensional Perovskites for Scalable Flexible Optoelectronic Devices

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Perovskite–organic tandem solar cells with superior reverse-bias stability

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YCRG-ExtU-Lead: Fundamental-Studies-Guided Growing of High-Quality, Mechanically Stable, Reduced-Dimensional Perovskites for Scalable Flexible Optoelectronic Devices

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