2014 Fiscal Year Annual Research Report

グラフェンナノリボンを原料としたカーボンナノチューブの構造選択的合成

Research Project

Project/Area Number	13J09322
Research Institution	Nagoya University
Principal Investigator	リムホンエン名古屋大学, 理学研究科, 特別研究員(DC2)
Project Period (FY)	2013-04-01 – 2015-03-31
Keywords	graphene nanoribbons / carbon nanotubes / optical properties / functionalization
Outline of Annual Research Achievements	Extended, ultrathin graphene nanoribbons (GNRs) with width of ca. 0.8 nm were successfully prepared inside the carbon nanotube (CNT). This is achieved through vacuum annealing of coronene-filled CNTs at high temperature. Transformation of the precursor molecules into the extended ribbons was confirmed using high resolution transmission electron microscope. Besides, the GNRs fabricated show a lower on-state Raman resonance energy, implying the extension of pi-conjugation. When the outer surface of the CNTs were treated with diazonium salts, an optical band gap of 1.6 eV was observed for the inner GNRs, in good qualitative agreement with the first principles calculations.
Research Progress Status	26年度が最終年度であるため、記入しない。
Strategy for Future Research Activity	26年度が最終年度であるため、記入しない。