In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 10R ( 1999-10-01), p. 6014-
Abstract:
Optical emission spectra during carbon nanotube production by DC arc discharge in H 2 , CH 4 or He gas were investigated. Emission spectra for C(I) (neutral carbon) atoms and C 2 dimers were commonly observed in the three gases. The existence of H atoms and CH molecules was verified by in situ observation during the evaporation in H 2 or CH 4 gas, because strong H and CH spectra were identified. It was concluded that H atoms were conducive for production of high-quality multiwalled carbon nanotubes by means of forming hydrocarbon species, but were not conducive for production of C 60 and C 70 .
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.6014
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
Permalink