Graphene terahertz modulators by ionic liquid gating

• Main Authors: Wu, Yang, La-o-vorakiat, Chan, Qiu, Xuepeng, Liu, Jingbo, Deorani, Praveen, Banerjee, Karan, Son, Jaesung, Chen, Yuanfu, Yang, Hyunsoo, Chia, Elbert E. M.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Materials::Energy materials
• Online Access: https://hdl.handle.net/10356/107129; http://hdl.handle.net/10220/25374; http://dx.doi.org/10.1002/adma.201405251
• Institution: Nanyang Technological University

Excellent-performance terahertz (THz) modulators based on graphene/ionic liquid/graphene sandwich structures are demonstrated. The modulation covers a broadband frequency range from 0.1 to 2.5 THz with a modulation depth of up to 99% by applying a small gate voltage of 3 V. The outstanding performan...