Details

Autor(en) / Beteiligte

• Endo, Morinobu
• Kim, Yoong Ahm
• Hayashi, Takuya
• Muramatsu, Hiroyuki
• Terrones, Mauricio
• Saito, Riichiro
• Villalpando-Paez, Federico
• Chou, Shin Grace
• Dresselhaus, Mildred S.

Titel

Nanotube Coalescence-Inducing Mode: A Novel Vibrational Mode in Carbon Systems

Ist Teil von

• Small (Weinheim an der Bergstrasse, Germany), 2006-08, Vol.2 (8-9), p.1031-1036

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2006

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• A resonant Raman mode located at 1855 cm−1 is related to vibrations of linear carbon chains and observed as a precursor to the merging of highly purified double‐walled carbon nanotubes (DWNTs, see figure). This mode, termed the “coalescence‐inducing mode” (CIM), which initiates the coalescence process, is induced by thermal annealing and its effect is enhanced by boron doping. The CIM mode arises from the generation of short 1D carbon chains (e.g., 3–7 atoms long) established covalently between adjacent tubes.