铁电性
石墨烯
材料科学
极化(电化学)
光电子学
纳米技术
非易失性存储器
化学
电介质
物理化学
作者
Jianghong Wu,Jialing Jian,Hui Ma,Yuting Ye,Bo Tang,Zhuang Qian,Qingyan Deng,Boshu Sun,Shi Liu,Hongtao Lin,Lan Li
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-09-03
标识
DOI:10.1021/acs.nanolett.4c02625
摘要
Two-dimensional materials (2DMs) have exhibited remarkably tunable optical characteristics, which have been applied for significant applications in communications, sensing, and computing. However, the reported tunable optical properties of 2DMs are almost volatile, impeding them in the applications of multifarious emerging frameworks such as programmable operation and neuromorphic computing. In this work, nonvolatile electro-optic response is developed by the graphene–Al2O3–In2Se3 heterostructure integrating with microring resonators (MRRs). In such compact devices, the optical absorption coefficient of graphene is substantially tuned by the out-of-plane ferroelectric polarization in α-In2Se3, resulting in a nonvolatile optical transmission in MRRs. This work demonstrates that integrating graphene with ferroelectric materials paves the way to develop nonvolatile devices in photonic circuits for emerging applications such as optical neural networks.
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