Improvement from discrete to uniform wetting of organic perovskite on ferromagnetic metals through a heterointerface

Shi Yu Liu, Zih En Lin, Bing Tsun Wu, Ting Hao Chen, Hsuan Ching Hung, Chun Han Yin, Chun Tse Hsieh, Chak Ming Liu, Li Jie Liaw, Sheng Yu Hsu, Po Chun Chang, Yu Chiang Chao*, Wen Chin Lin

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

Considerable effort has been expended on the combination of a ferromagnetic layer with a perovskite film for application in light-controlled spintronic devices. However, to achieve such combinations, gaining control over the interface quality and the interaction between the ferromagnetic and perovskite layers is crucial. Studies have observed discrete distributions of organic perovskite (methylammonium lead bromide, MAPbBr3) films, which self-assemble into nanodiscs, on iron–palladium alloy films. To achieve uniform wetting, we proposed the insertion of an ultrathin heterointerface of an aluminum oxide or graphene layer between perovskite and metal films. Through atomic force microscopy and scanning electron microscopy, we observed that the derived MAPbBr3 coating successfully formed a continuous and dense layer without voids, with its roughness fluctuations being within a few nanometers. Magneto-optical Kerr effect measurement for material characterization revealed that the perovskite films had a negligible capping effect on magnetism. These results provide insight into the potential technological applications of perovskite/metal heterostructures.

原文英語
文章編號154180
期刊Applied Surface Science
601
DOIs
出版狀態已發佈 - 2022 11月 1

ASJC Scopus subject areas

  • 化學 (全部)
  • 凝聚態物理學
  • 物理與天文學 (全部)
  • 表面和介面
  • 表面、塗料和薄膜

指紋

深入研究「Improvement from discrete to uniform wetting of organic perovskite on ferromagnetic metals through a heterointerface」主題。共同形成了獨特的指紋。

引用此