DataVXACS Energy LettersPaper
journal article·2026-06-29

In Situ Polymerizable Lead-Chelating Crown Ether for Lead Leakage Inhibition in Perovskite Solar Cells

Shichu Peng, Zhixin Liu, Ting Xue, Lida Wang, Wenbo Peng, Jiasheng Zou, Peide Zhu, Bowen Xue, Jiangfeng Wang, Xingzhu Wang, Lei Yan, Liwen Yang, Baomin Xu

ACS Energy Letters
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Source abstract

Abstract

While perovskite solar cells (PSCs) have garnered substantial attention owing to the high power conversion efficiency (PCE), light weight, and potential for cost reduction, their long-term stability and the pollution impact on the environment remain significant issues that need to be addressed urgently. The primary challenges in lead-based perovskites are caused by the segregation and migration of Pb 2+ within the perovskite grain boundaries (GBs) and interface during device operation, which accelerate the degradation of perovskite and ultimately result in lead leakage. In this research, the stability of perovskite is improved through the in situ polymerization of DVB18C6, a polymerizable crown ether with selective lead chelating property within the perovskite GBs. The robust GBs formed by DVB18C6 optimize perovskite film defects and suppress device lead leakage. The champion device achieved a PCE of 26.78%, with a Pb 2+ sequestration efficiency (SQE) of 95.14%. By integrating lead-chelating functionality with polymerizable groups, this approach improves the stability of PSCs and effectively mitigates lead leakage.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Chemical and Physical Properties of Materials · Organic Light-Emitting Diodes Research

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

Affiliations

Department of Material Science and Engineering

Southern University of Science and Technology

School of Physics and Optoelectronics

Xiangtan University

Shenzhen Putai Technology Co., Ltd.

Engineering and Research Center for Integrated New Energy Photovoltaics and Energy Storage Systems of Hunan Province and School of Electrical Engineering

University of South China

Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices

Funding

Natural Science Foundation of Hunan Province · Basic and Applied Basic Research Foundation of Guangdong Province · Science, Technology and Innovation Commission of Shenzhen Municipality · Education Department of Hunan Province · National Natural Science Foundation of China · Science and Technology Department of Guangxi Zhuang Autonomous Region · Energy Institute for Carbon Neutrality, Southern University of Science and Technology

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