Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency

Guihua Zhang; Deng Wang; Bowei Li; Qing Lian; Xinyi Zou; Dongyang Li; Qiming Yin; Guojun Mi; Jie Li; Kui Feng; Abbas Amini; Alex. K. -Y. Jen; Xugang Guo; Baomin Xu; Chun Cheng

doi:10.1038/s41467-025-63776-6

Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency

Guihua Zhang (Co-first Author)
, Deng Wang (Co-first Author)
, Bowei Li (Co-first Author)
, Qing Lian^* (Co-first Author)
, Xinyi Zou
, Dongyang Li
, Qiming Yin
, Guojun Mi
, Jie Li
, Kui Feng
, Abbas Amini
, Alex. K. -Y. Jen
, Xugang Guo
, Baomin Xu^*
, Chun Cheng^*

^*Corresponding author for this work

Department of Materials Science and Engineering

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

9 Citations (Scopus)

4 Downloads (CityUHK Scholars)

Abstract

Fabricating high-performance perovskite solar cells (PSCs) with solution processing is conducive to low-cost commercial production, it is therefore rather critical to stabilize perovskite in both solution and solid phases. For this purpose, the speed-up ageing of perovskite solution in air was systematically studied and its severe spontaneous degradation was observed. To address this issue, we introduce 4-(trifluoromethyl) phenylhydrazine (TFPH) to modify the perovskite solution, which presents enhanced storage stability. Consequently, when the modified solution was used to prepare PSCs, we obtained much improved and well consistent power conversion efficiencies (PCEs, ~ 26.0%) regardless of the perovskite solution ageing time, as well as exciting operational stability, which maintains PCE ≥ 92% for 1830 hours. These results are attributed to TFPH’s multifunctionality: a) hydrazine groups inhibit perovskite decomposition by dual-pathway mechanism; b) trifluoromethyl boosts dipole moment, aiding crystallization and strain relaxation; c) impurity reduction and high-quality film jointly lower charge traps. This work substantially assists understanding and modifying perovskite degradation in both solution and solid phases. The developed performance stability and consistency on the TFPH modified device batches is of great significance for commercial production of PSCs. © The Author(s) 2025.

Original language	English
Article number	8681
Number of pages	9
Journal	Nature Communications
Volume	16
Online published	30 Sept 2025
DOIs	https://doi.org/10.1038/s41467-025-63776-6
Publication status	Published - 2025

Funding

This work was supported by the National Key Research and Development Project funding from the Ministry of Science and Technology of China (Grant No. 2021YFB3800101, B.X.), Basic Research Project of Science and Technology Plan of Shenzhen (Grant No. 20231115112954001, C.C.), the National Natural Science Foundation of China (Grant No. 22305111 (Q. L.), 22409130 (B.L.) and 52173171 (X.G.)), Guangdong-Hongkong-Macao Joint Laboratory (No. 2019B121205001, C.C.), Guangdong Provincial Key Laboratory of Energy Materials for Electric Power (No. 2018B030322001, C.C.), High level of special funds (G03034K001, C.C.), The Shanghai Science and Technology Innovation Action Plan (24DZ3001203, B.L.). The authors also acknowledge the supports received from Fundamental Research Funds for the Student Innovation Training Program (Grant Nos. 2022G01, 2022G02, 2023S03, 2023×01, 2023×02, 2023×03, C. C.), Southern University of Science and Technology (SUSTech), and special funds for Cultivation of Guangdong College Students’ Scientific and Technological Innovation (Grant Nos. pdjh2022c0005, pdjh2023b0460 and pdjh2024c10910, C.C.). The authors acknowledge H. Yi at the Southern University of Science and Technology and SUSTech Core Research Facilities for assistance in the characterization of perovskite films.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Publisher's Copyright Statement

This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

Access Output

10.1038/s41467-025-63776-6

350609808.pdfFinal Published version, 2.04 MBLicence: CC BY

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{7be18fa389ea4af78e6be1ccdf997682,

title = "Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency",

abstract = "Fabricating high-performance perovskite solar cells (PSCs) with solution processing is conducive to low-cost commercial production, it is therefore rather critical to stabilize perovskite in both solution and solid phases. For this purpose, the speed-up ageing of perovskite solution in air was systematically studied and its severe spontaneous degradation was observed. To address this issue, we introduce 4-(trifluoromethyl) phenylhydrazine (TFPH) to modify the perovskite solution, which presents enhanced storage stability. Consequently, when the modified solution was used to prepare PSCs, we obtained much improved and well consistent power conversion efficiencies (PCEs, \textasciitilde{} 26.0\%) regardless of the perovskite solution ageing time, as well as exciting operational stability, which maintains PCE ≥ 92\% for 1830 hours. These results are attributed to TFPH{\textquoteright}s multifunctionality: a) hydrazine groups inhibit perovskite decomposition by dual-pathway mechanism; b) trifluoromethyl boosts dipole moment, aiding crystallization and strain relaxation; c) impurity reduction and high-quality film jointly lower charge traps. This work substantially assists understanding and modifying perovskite degradation in both solution and solid phases. The developed performance stability and consistency on the TFPH modified device batches is of great significance for commercial production of PSCs. {\textcopyright} The Author(s) 2025.",

author = "Guihua Zhang and Deng Wang and Bowei Li and Qing Lian and Xinyi Zou and Dongyang Li and Qiming Yin and Guojun Mi and Jie Li and Kui Feng and Abbas Amini and Jen, \{Alex. K. -Y.\} and Xugang Guo and Baomin Xu and Chun Cheng",

year = "2025",

doi = "10.1038/s41467-025-63776-6",

language = "English",

volume = "16",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Springer Nature",

}

Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency. / Zhang, Guihua (Co-first Author); Wang, Deng (Co-first Author); Li, Bowei (Co-first Author) et al.
In: Nature Communications, Vol. 16, 8681, 2025.

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

TY - JOUR

T1 - Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency

AU - Zhang, Guihua

AU - Wang, Deng

AU - Li, Bowei

AU - Lian, Qing

AU - Zou, Xinyi

AU - Li, Dongyang

AU - Yin, Qiming

AU - Mi, Guojun

AU - Li, Jie

AU - Feng, Kui

AU - Amini, Abbas

AU - Jen, Alex. K. -Y.

AU - Guo, Xugang

AU - Xu, Baomin

AU - Cheng, Chun

PY - 2025

Y1 - 2025

N2 - Fabricating high-performance perovskite solar cells (PSCs) with solution processing is conducive to low-cost commercial production, it is therefore rather critical to stabilize perovskite in both solution and solid phases. For this purpose, the speed-up ageing of perovskite solution in air was systematically studied and its severe spontaneous degradation was observed. To address this issue, we introduce 4-(trifluoromethyl) phenylhydrazine (TFPH) to modify the perovskite solution, which presents enhanced storage stability. Consequently, when the modified solution was used to prepare PSCs, we obtained much improved and well consistent power conversion efficiencies (PCEs, ~ 26.0%) regardless of the perovskite solution ageing time, as well as exciting operational stability, which maintains PCE ≥ 92% for 1830 hours. These results are attributed to TFPH’s multifunctionality: a) hydrazine groups inhibit perovskite decomposition by dual-pathway mechanism; b) trifluoromethyl boosts dipole moment, aiding crystallization and strain relaxation; c) impurity reduction and high-quality film jointly lower charge traps. This work substantially assists understanding and modifying perovskite degradation in both solution and solid phases. The developed performance stability and consistency on the TFPH modified device batches is of great significance for commercial production of PSCs. © The Author(s) 2025.

AB - Fabricating high-performance perovskite solar cells (PSCs) with solution processing is conducive to low-cost commercial production, it is therefore rather critical to stabilize perovskite in both solution and solid phases. For this purpose, the speed-up ageing of perovskite solution in air was systematically studied and its severe spontaneous degradation was observed. To address this issue, we introduce 4-(trifluoromethyl) phenylhydrazine (TFPH) to modify the perovskite solution, which presents enhanced storage stability. Consequently, when the modified solution was used to prepare PSCs, we obtained much improved and well consistent power conversion efficiencies (PCEs, ~ 26.0%) regardless of the perovskite solution ageing time, as well as exciting operational stability, which maintains PCE ≥ 92% for 1830 hours. These results are attributed to TFPH’s multifunctionality: a) hydrazine groups inhibit perovskite decomposition by dual-pathway mechanism; b) trifluoromethyl boosts dipole moment, aiding crystallization and strain relaxation; c) impurity reduction and high-quality film jointly lower charge traps. This work substantially assists understanding and modifying perovskite degradation in both solution and solid phases. The developed performance stability and consistency on the TFPH modified device batches is of great significance for commercial production of PSCs. © The Author(s) 2025.

UR - https://www.scopus.com/pages/publications/105017621896

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105017621896&origin=recordpage

U2 - 10.1038/s41467-025-63776-6

DO - 10.1038/s41467-025-63776-6

M3 - RGC 21 - Publication in refereed journal

C2 - 41027900

SN - 2041-1723

VL - 16

JO - Nature Communications

JF - Nature Communications

M1 - 8681

ER -

Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency

Abstract

Funding

UN SDGs

Publisher's Copyright Statement

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this