Wen Qiye
+
Doctor of Engineering
With Certificate of Graduation for Doctorate Study
Personal Information
Gender:Male
Date of Employment:2005-04-01
E-Mail:
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Doctor of Engineering
With Certificate of Graduation for Doctorate Study
Gender:Male
Date of Employment:2005-04-01
E-Mail:2dfae7fbc3b4eee77cbc83e6dc0991c98a03764bcc68440b36c566a8436e2ae8a1583db720d39738c58ecf51abdfc0792241b0c642189c27038028cf0502664fcf2ad60fb7a8e4099e84c7a18122e783ed3307500b5c9fbe19c3e89a1d71dd219103fa75b78e4c54f92297151d3fe6fc58621daf6a763c7e396f0951bd7581e1
Email:c045ee02cf98f3c8badd036e7bb5177b47f43a3c5e8068fdb1fbaf5b1a2b1c379d52673dfd4418a27d6de7464b5824033fcc7853b02961697e9d54402740773f73b957f231b409a9b1301b36a226460ea4a21a697903124a28bd1e0b5beb7fc196c290c4a3c04f9e1afef461deb669e658a79d928965266b30d2529ad49f5d79
Affiliation of Author(s):[1]Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China
Journal:ACS APPLIED ELECTRONIC MATERIALS
Key Words:graphene/silicon hybrid diode; terahertz modulation; gold nanoparticles; modulation mechanism; band theory
Abstract:Graphene/silicon hybrid diodes have been proven efficient for broadband terahertz (THz) modulation with electrical and optical stimuli. However, the optimal protocol to apply optical and electrical stimuli has not been well-determined to obtain the best performance. Here, band theory of the hybrid diode has been used to analyze the underlying modulation mechanism and to help determine the optimal modulation protocol. Monolayer gold nanoparticles (AuNPs) were coated on the graphene/silicon hybrid diode to enhance the modulation performance. Both high modulation depth (similar to 93%) and modulation rate (similar to 4.6 kHz) were obtained with the AuNP-coated hybrid diode using the proper modulation method. To explore the underlying mechanism for a graphene/silicon hybrid diode THz modulator, this work could throw light on other material systems for THz modulation.
Document Type:Article
Volume:2
Issue:7
Page Number:1953-1959
ISSN No.:2637-6113
Translation or Not:no
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