Synergetic Porous Insulating and Passivation Layer Design for High-Efficiency and Stable Perovskite Solar Cells

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2024-12-23 DOI:10.1021/acsmaterialslett.4c0209910.1021/acsmaterialslett.4c02099

Jiashun Li, Jing Liao, Tianhe Dong, Hongyu Li, Ze Li, Li Tan, Xu Chen, Wenfeng Zhang and Haijin Li*,

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Abstract

Perovskite solar cells have attracted extensive attention due to their simple manufacturing process and high efficiency. However, defects between the perovskite and hole transport layer can lead to nonradiative recombination of photogenerated carriers and severe ion migration, which accelerates the degradation of such devices. Here, we chose to deposit an Al₂O₃ porous insulating layer on the surface of the perovskite film. At the same time, we chose to introduce NMABr (1-Naphthylmethylamine Bromide) into Al₂O₃ as a modifier to overcome the issue that applying Al₂O₃ alone may hinder interfacial carrier transport due to the uncontrolled morphology. The addition of NMABr not only has a passivation effect but also changes the morphology of the Al₂O₃ layer. Under the synergistic effect of Al₂O₃ and NMABr, a porous insulating contact layer is better formed, which is conducive to carrier transport and improves the stability and efficiency.

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.