Speaker
Rimah Darawish
(nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Tech-nology, 8600 Dübendorf, Switzerland )
Description
Graphene nanoribbons (GNRs) synthesized with bottom-up technique allow electronic bandgap tuning, making GNRs an interesting candidate for room temperature switching applications as field-effect transistors (FET). We investigated various densities of aligned GNRs (by scanning tunneling microscopy) followed by transferring them to a target substrate. To investigate GNRs degree of alignment, Raman polarization anisotropy was used, which showed significant change in alignment for low GNR density samples. In this contribution, we will also discuss a modified fitting method for Raman polarization in which additional parameters are introduced to elucidate the effect of GNRs density on the degree of alignment.
Primary authors
Rimah Darawish
(nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Tech-nology, 8600 Dübendorf, Switzerland )
Dr
Gabriela Borin Borin
(nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland )
Dr
Jan Overbeck
(Transport at Nanoscale Interfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Sci-ence and Technology 8600 Dübendorf, Switzerland )
Dr
Oliver Braun
(Transport at Nanoscale Interfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Sci-ence and Technology 8600 Dübendorf, Switzerland )
Dr
Akimitsu Narita
(Max Plank Institute for Polymer Research, 55128 Mainz, Germany)
Prof.
Klaus Müllen
(Max Plank Institute for Polymer Research, 55128 Mainz, Germany)
Prof.
Michel Calame
(Transport at Nanoscale Interfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Sci-ence and Technology 8600 Dübendorf, Switzerland )
Dr
Pascal Ruffieux
(nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Tech-nology, 8600 Dübendorf, Switzerland )
Prof.
Roman Fasel
(nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Tech-nology, 8600 Dübendorf, Switzerland )
