Chhowalla, M and Wang, H and Sano, N and Teo, KBK and Lee, SB and Amaratunga, GAJ (2003) Carbon onions: Carriers of the 217.5 nm interstellar absorption feature. Physical Review Letters, 90. ISSN 0031-9007Full text not available from this repository.
The UV-VIS characteristics of carbon ions fabricated by an arch discharge in water or liquid nitrogen show characteristics that are similar to the interstellar absorption feature. Thus, high purity and well separated carbon onion samples prepared by annealing the as-fabricated powder in air at 600°C for 60 showed a constant absorption peak at 4.6 μm-1 with a variable width ranging from 1.2-1.6 μm-1. In addition to the UV-VIS data, the origin of the absorption feature at 4.6 μm-1 in carbon onions can be attributed to the collective excitations of π plasmons.
|Depositing User:||Cron job|
|Date Deposited:||04 Feb 2015 22:18|
|Last Modified:||26 Mar 2015 01:42|