Oriented Chiral Two-Dimensional Covalent-Organic Frameworks for Spintronic Devices

Chiral two-dimensional covalent organic frameworks (COFs) have emerged as promising materials for applications in spintronics, sensing, and quantum information science. However, understanding and controlling the chirality-induced spintronic properties remain a significant challenge. This presentation introduces a general method for synthesizing highly oriented, crystalline COF thin films, optimized for robust solid-state spintronic devices. We demonstrate that the crystallinity and orientation of the COF domains play a crucial role in achieving spin polarization in a vertical spintronic device, with room-temperature spin polarization reaching up to 90%. This work provides valuable insights into the design and synthesis of chiral 2D COFs for next-generation spintronic technologies.