TY - JOUR
T1 - Thermal stability studies of CVD-grown graphene nanoribbons
T2 - Defect annealing and loop formation
AU - Campos-Delgado, J.
AU - Kim, Y. A.
AU - Hayashi, T.
AU - Morelos-Gómez, A.
AU - Hofmann, M.
AU - Muramatsu, H.
AU - Endo, M.
AU - Terrones, H.
AU - Shull, R. D.
AU - Dresselhaus, M. S.
AU - Terrones, M.
N1 - Funding Information:
The authors thank Dr. Gene Dresselhaus, D. Ramirez and G. Ramirez for valuable and fruitful discussions. This work is supported by NSF Grants NIRT CTS-05-06830 and DMR-07-04197. We also thank CONACYT-Mexico for Grants: 56787 (Laboratory for Nanoscience and Nanotechnology Research-LINAN), 45772 (MT), 58899-Inter American Collaboration (MT), 2004-01-013/SALUD-CONACYT (MT) and PhD scholarships (JCD, AMG).
PY - 2009/2/3
Y1 - 2009/2/3
N2 - We present a high temperature heat treatment study of CVD-grown graphene nanoribbons annealed up to 2800 °C, demonstrating a progressive annihilation of lattice defects as the heat treatment temperature is raised. Starting at 1500 °C, single and multiple loop formation were observed on the ribbons edges as the temperature was increased. The structural changes of the samples are documented by X-ray diffraction, Raman spectroscopy, TGA, SEM, and HRTEM. This work indicates that nanoribbon annealing eventually leads to defect-free samples, through graphitization and edge loop formation. The annealed material exhibits structural differences that could be tailored for a variety of specific applications.
AB - We present a high temperature heat treatment study of CVD-grown graphene nanoribbons annealed up to 2800 °C, demonstrating a progressive annihilation of lattice defects as the heat treatment temperature is raised. Starting at 1500 °C, single and multiple loop formation were observed on the ribbons edges as the temperature was increased. The structural changes of the samples are documented by X-ray diffraction, Raman spectroscopy, TGA, SEM, and HRTEM. This work indicates that nanoribbon annealing eventually leads to defect-free samples, through graphitization and edge loop formation. The annealed material exhibits structural differences that could be tailored for a variety of specific applications.
UR - https://www.scopus.com/pages/publications/58849106420
UR - https://www.scopus.com/pages/publications/58849106420#tab=citedBy
U2 - 10.1016/j.cplett.2008.12.082
DO - 10.1016/j.cplett.2008.12.082
M3 - Article
AN - SCOPUS:58849106420
SN - 0009-2614
VL - 469
SP - 177
EP - 182
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -