Optical properties of silicon nanoparticles synthesised at different heating rates via physical vapour condensation method
by Zishan H. Khan, Numan A. Salah, Sami Habib
International Journal of Nanoparticles (IJNP), Vol. 2, No. 1/2/3/4/5/6, 2009

Abstract: A physical vapour condensation method is employed to fabricate the silicon nanoparticles at different heating rates. We have grown silicon nanoparticles at two different heating rates i.e., 10°C/min and 20°C/min. It is observed that the nanoparticles synthesise at low heating rate (10°C/min) are more uniform and spherical with size varying between 10nm to 40 nm. The average surface roughness is about 160 nm as evident from the AFM images. Whereas, the silicon nanoparticles grown at higher heating rate i.e., 20°C/min looks like aggregated and appears as nanoclusters. The size of these nanoparticles varies between 5 nm to 10 nm and the average surface roughness is about 140 nm. The photoluminescence (PL) observed from silicon (Si) nanoparticles has been explained with the help of oxygen-related surface state mechanism.

Online publication date: Wed, 30-Sep-2009

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanoparticles (IJNP):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com