Yuanzhu Jiang, Aodong Zhu, Teng Liao, Wang Zhao, Mengmeng Cheng, Xinxin Zhang, Yi-Bing Cheng, Junyan Xiao
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Multifunctional additive enables lead-adsorbing carbon electrodes for perovskite solar cells
The potential risk of lead (Pb) leakage from lead halide perovskite materials poses a significant challenge in the commercialization of perovskite solar cells (PSCs). To address this issue, a viable strategy involves endowing the materials in PSCs with the ability to immobilize Pb. Herein, we introduce a straightforward technique for carbon-based PSCs that utilizes phosphate as a multifunctional additive, which exhibits both bonding and chemical adsorption effects. A playdough-like carbon material can be made by mixing a phosphate aqueous solution with graphite powder, and then be pressed into shape to serve as the top electrode of PSCs. In addition to good compatibility with small-area PSCs and modules, this versatile carbon electrode effectively mitigates the Pb leakage from damaged devices to a safe level.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.