Precision Synthesis and Assembly of Chiral 2D Polymers for Spintronics
Abstract
This project aims to create chiral two-dimensional polymer heterostructures as a new material platform for the investigation of chiral-induced spin selectivity (CISS). CISS has emerged as a promising phenomenon wherein chiral molecules selectively transport electron spins, offering vast potential for advancements in spintronic devices and quantum information science. However, the current understanding of CISS is limited by the lack of an artificial chiral solid that allows for unrestricted molecular tunability and the creation of thin film structures with exceptional quality, uniformity, and spatial precision. Overcoming this challenge is crucial for exploring fundamental questions related to CISS and unlocking the full potential of functional spintronic devices. To address this challenge, we propose to synthesize and assemble large-scale, uniform chiral 2D polymer (C-2DP) thin films with monolayer precision. The C-2DP monolayers simultaneously possess two key advantages — versatile molecular building blocks and layer-by-layer integration of heterostructures — inaccessible in other chiral materials. Through our proposed research, we aim to synthesize C-2DPs from diverse chiral building blocks and integrate artificial chiral 2DP solids layer by layer to investigate the influence of electronic properties and heterostructures on CISS. Furthermore, we plan to pioneer the fabrication of vertical transistors by integrating C-2DPs with graphene, enabling us to investigate gate-dependent spin-selective electron transport. The outcome of this study will establish a quantitative analysis framework, contributing to the further enhancement of our understanding of CISS, as well as the advancement of quantum spintronic devices utilizing organic and hybrid chiral materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2025
- Source ID
- FA95502410125
Entities
People
- Yu Zhong
Organizations
- Air Force Office of Scientific Research
- Cornell University
- United States Air Force