High-Performance All-Optical Terahertz Modulator Based on Graphene/TiO2/Si Trilayer Heterojunctions

High-Performance All-Optical Terahertz Modulator Based on Graphene/TiO2/Si Trilayer Heterojunctions

Abstract In this paper, we demonstrate a trilayer hybrid terahertz (THz) modulator made by combining a p-type silicon (p-Si) substrate, TiO2 interlayer, and single-layer graphene. The interface between Si and TiO2 introduced a built-in electric field, which drove the photoelectrons from Si to TiO2,...

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Bibliographic Details
Main Authors: Miaoqing Wei, Dainan Zhang, Yuanpeng Li, Lei Zhang, Lichuan Jin, Tianlong Wen, Feiming Bai, Huaiwu Zhang
Format: Article
Language:English
Published: SpringerOpen 2019-05-01
Series:Nanoscale Research Letters
Subjects:
THz modulator
TiO2 interlayer
Single-layer graphene
Built-in electric field
Broadband modulation
Online Access:http://link.springer.com/article/10.1186/s11671-019-2996-9

Internet

http://link.springer.com/article/10.1186/s11671-019-2996-9

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