The photochemistry of semiconductor nano-particles

SpecialChem - Apr 12, 2006

The photochemical aspects of semiconductor nano-particles are of outmost importance for the qualities and the behavior of many coatings. Only the combination of these words is not so often used to describe the numerous coatings whose behaviour, intentionally or not, depends on the photochemical properties of the semiconductor particles they contain. A semiconductor is a material with an electrical conductivity that is intermediate between that of an insulator and a conductor. Well-known semiconductors in electronics are e.g. silicon, germanium, galliumarsenide, indiumphosphide … but, in general, zinc oxide, aluminumoxide, zincsulphide, silverbromide, titaniumdioxide and many other inorganic compounds are semiconductors too. A semiconductor has a band-gap ( the energy difference between the conduction band and the valence band) which is small enough that the conduction band can be partially filled with electrons by thermal agitation or by a photonic impact.A semiconductor has a band-gap between 0 and 4 eV.
Join SpecialChem Expert Team to contribute to our editorial line! Contact us at chief-editor-pc@specialchem.com
SpecialChem4Coatings Members Reactions
> Be the first to react about this document

Rate and React about this Document

Rate & React!
To react about this document, please identify first.
User ID
Forget ID/Password?
Password
Not a member yet? Take 2min to register for free and add your reaction right after.

Coatings & Inks Formulation Bulletin
Coatings & Inks Industry Letter

About SpecialChem - About SpecialChem4Coatings - Commercial Acceleration Services - Advertise with us
Contact Us - Forgot your UserID / Password? - Site Map - RSS - Terms and Conditions - specialchem.com
Copyright © 2014 SpecialChem S.A.