Research Papers

Significant enhancement in the efficiency of photoconductive antennas using a hybrid graphene molybdenum disulphide structure

[+] Author Affiliations
Farzad Zangeneh-Nejad

Sharif University of Technology, Electrical Engineering Department, Tehran 11155-4363, Iran

Reza Safian

Isfahan University of Technology, Department of Electrical and Computer Engineering, Isfahan 84156, Iran

J. Nanophoton. 10(3), 036005 (Jul 28, 2016). doi:10.1117/1.JNP.10.036005
History: Received April 28, 2016; Accepted July 8, 2016
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Abstract.  We propose a hybrid graphene molybdenum disulphide-based photoconductive antenna to overcome the restrictions of metallic photoconductive antennas and graphene-based photoconductive antennas, simultaneously. The structure is composed of a hybrid graphene-MoS2 strip as the antenna deposited on a low-temperature gallium arsenide substrate. A full-wave electromagnetic solver, namely, high frequency structural simulator (HFSS) is used to analyze the whole structure. It is shown that the proposed photoconductive antenna provides us with not only high input impedance and reconfigurability but also high values of matching efficiency and radiation efficiency. The impact of increasing MoS2 layers on the performance of the antenna is also investigated.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Farzad Zangeneh-Nejad and Reza Safian
"Significant enhancement in the efficiency of photoconductive antennas using a hybrid graphene molybdenum disulphide structure", J. Nanophoton. 10(3), 036005 (Jul 28, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.036005


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