TY - JOUR
T1 - Dynamic Conductivity and Two-Dimensional Plasmons in Lateral CNT Networks
AU - Ryzhii, Maxim
AU - Otsuji, Taiichi
AU - Ryzhii, Victor
AU - Mitin, Vladimir
AU - Shur, Michael S.
AU - Fedorov, Georgy
AU - Leiman, Vladimir
PY - 2017/6/1
Y1 - 2017/6/1
N2 - We study theoretically the carrier transport and the plasmonic phenomena in the gated structures with dense lateral carbon nanotube (CNT) networks (CNT "felt") placed between the highly-conducting slot line electrodes. The CNT networks under consideration consist of a mixture of semiconducting and metallic CNTs. We find the dispersion relations for the two-dimensional plasmons, associated with the collective self-consisted motion of electrons in the individual CNTs, propagating along the electrodes as functions of the net electron density (gate voltage), relative fraction of the semiconducting and metallic CNTs, and the spacing between the electrodes. In a wide range of parameters, the characteristic plasmonic frequencies can fall in the terahertz (THz) range. The structures with lateral CNT networks can used in different THz devices.
AB - We study theoretically the carrier transport and the plasmonic phenomena in the gated structures with dense lateral carbon nanotube (CNT) networks (CNT "felt") placed between the highly-conducting slot line electrodes. The CNT networks under consideration consist of a mixture of semiconducting and metallic CNTs. We find the dispersion relations for the two-dimensional plasmons, associated with the collective self-consisted motion of electrons in the individual CNTs, propagating along the electrodes as functions of the net electron density (gate voltage), relative fraction of the semiconducting and metallic CNTs, and the spacing between the electrodes. In a wide range of parameters, the characteristic plasmonic frequencies can fall in the terahertz (THz) range. The structures with lateral CNT networks can used in different THz devices.
KW - carbon nanotube network
KW - plasmonic
KW - terahertz radiation
KW - two-dimensional carrier system
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U2 - 10.1142/S0129156417400043
DO - 10.1142/S0129156417400043
M3 - Article
AN - SCOPUS:85013276246
VL - 26
JO - International Journal of High Speed Electronics and Systems
JF - International Journal of High Speed Electronics and Systems
SN - 0129-1564
IS - 1-2
M1 - 1740004
ER -