ABSTRACT

BiFeO₃-CoFe₂O₄ (BFO-CFO) vertically aligned nanocomposite (VAN) thin-film promises great potentials for next-generation electronic devices. Its strong magnetoelectric, antiferromagnetic-ferrimagnetic, and structural couplings occur via large interface area interactions across the vertical surface between BFO and CFO phases; this leads to emergent exotic fundamental physics rendering its potential applications for various electronics, such as magnetic sensor, data storages or memory devices, and energy harvesting devices. The distinctive photoactivity of both BFO and CFO phases in the BFO-CFO VAN system also can generate advanced applications as photovoltaic and photocatalytic devices. Furthermore, owing to small overpotential and excellent stability in alkaline media, BFO-CFO nanocomposites becomes the next electrode in electrocatalysis devices. The BFO-CFO VAN also have been exponentially developed having various type of thin-film architectures grown on various substrates. In this present article, we review the current status of the BFO-CFO VAN thin-film and discuss the fundamental understanding as well as the technology involved in developing this material. We also address the challenges that hinder the commercialization of this material and propose some plausible solutions to encourage BFO-CFO VAN-based electronic devices to reach their maturity level. Furthermore, the potential marketability of the BFO-CFO VAN materials and devices for future consumer products is also discussed.

摘要

的BiFeO ₃ -CoFe ₂ ø ₄（BFO-CFO）垂直排列的纳米复合材料（VAN）薄膜有望用于下一代电子器件巨大潜力。其强磁电、反铁磁-亚铁磁和结构耦合通过BFO 和 CFO 相之间垂直表面上的大界面面积相互作用；这导致了新兴的奇异基础物理学，使其在各种电子产品中具有潜在的应用，例如磁传感器、数据存储或存储设备以及能量收集设备。BFO-CFO VAN 系统中 BFO 和 CFO 相的独特光活性也可以产生作为光伏和光催化设备的高级应用。此外，由于过电位小且在碱性介质中具有优异的稳定性，BFO-CFO纳米复合材料成为电催化装置中的下一个电极。BFO-CFO VAN 也得到了指数级的发展，具有在各种基板上生长的各种类型的薄膜架构。在本文中，我们回顾了 BFO-CFO VAN 薄膜的现状，并讨论了开发这种材料所涉及的基本理解和技术。我们还解决了阻碍这种材料商业化的挑战，并提出了一些合理的解决方案，以鼓励基于 BFO-CFO VAN 的电子设备达到其成熟度。此外，还讨论了用于未来消费产品的 BFO-CFO VAN 材料和设备的潜在适销性。