Optoelectronics with Carbon Nanotubes

Chapter I
List of Figures
Figure ‎I-1 The honeycomb structure of a graphene sheet ................................................ 4
Figure ‎I-2 Energy dispersion of graphene ....................................................................... 6
Figure ‎I-3 The Brillouin zones of metallic and semiconducting SWNTs. ........................ 7
Figure ‎I-4 One-dimentional energy dispersion of metallic and semiconducting
SWNTs. ......................................................................................................... 8
Figure ‎I-5 First and second transitions between van-Hove singularities .......................... 9
Figure ‎I-6 Phonon energy dispersion for (19,0) CNT .................................................... 13
Figure ‎I-7 Schematic illustration of a standard bottom-gated CNTFET ......................... 18
Figure ‎I-8 Schematic band structure of the first conduction and valence bands in
the “on” and “off” states .............................................................................. 19
Figure ‎I-9 Schematic illustrations of band structures in ambipolar and unipolar
conduction ................................................................................................... 21
Figure ‎I-10 Ambipolar and unipolar emission mechanisms........................................... 22
Chapter II
Figure ‎II-1 Schematics of a back-gated CNTFET device .............................................. 31
Figure ‎II-2 Schematics of a CNT p-n junction .............................................................. 32
Figure ‎II-3 Schematics of the optics to detect emitted light. .......................................... 35
Chapter III
Figure ‎III-1 Semi-log plot of drain current as a function of gate voltage ....................... 40
Figure ‎III-2 Source-Drain sweep showing saturation .................................................... 41
Figure ‎III-3 Change in transport from predominantly p-type to n-type FET .................. 42
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