DataVXACS Energy LettersPaper
journal article·2026-02-13Open access

Multifunctional Fluorinated Self-Polymerizable Additive Improves the Performance of Perovskite Photovoltaics

Na Shi, Hao Tian, Guangyue Yang, Panyu Wang, Yu Lei, Wei Li, Jingfu Jiang, Xiaoqing Jiang, Zhongjin Shen, Marina Freitag, Xin Guo, Shuping Pang

ACS Energy Letters· Volume 11· Issue 2
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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide The incorporation of self-polymerizable additives is an effective strategy to improve both efficiency and stability of perovskite solar cells (PSCs), yet the structure-performance relationship remains unclear. Here, two self-polymerizable additives, 2,2,3,3,3-pentafluoropropyl acrylate (PFPA) and n -propyl acrylate (NPA), are systematically investigated. Both additives undergo in situ thermal polymerization during perovskite annealing. The fluorinated PFPA exhibits strong interactions with undercoordinated Pb 2+, enabling effective crystallization regulation and defect passivation. Polymerized PFPA preferentially accumulates at the perovskite top surface, forming a hydrophobic dipole layer that enhances charge extraction and interfacial stability. As a result, PSCs with polymerized PFPA achieve a champion power conversion efficiency (PCE) of 26.01% and retain 90.0% of the initial efficiency after 840 h at 85 °C in nitrogen and 95.1% after 1000 h under maximum power point tracking conditions. Furthermore, minimodules with an active area of 14 cm 2 deliver a PCE of 21.66%.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersElectronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · TiO2 Photocatalysis and Solar Cells · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemical Engineering

Qingdao University of Science and Technology

Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy

Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Shandong Energy Group Co., Ltd.

State Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology

Chinese Academy of Sciences, Qingdao New Energy Shandong Laboratory, Shandong Energy Institute

School of Natural and Environmental Sciences

Newcastle University

Funding

National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · Key Technology Research and Development Program of Shandong Province · Chinese Academy of Sciences · Shandong Energy Group Co., Ltd · Shandong Province Higher Education Institutions Youth Innovation Team Development Program

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