Electron Induced Functionalization of Semiconductors: the case of polycrystalline Diamond

R. Azria, D. Cáceres, M. Bertin, and A. Lafosse

Laboratoire des Collisions Atomiques et Moléculaires, CNRS-Université Paris-Sud (UMR 8625, FR LUMAT)
Bât. 351, Université Paris Sud, F-91405 Orsay Cedex, France
C. Jäggle and P. Swiderek

Institut für Angewandte und Physikalische Chemie, Universität Bremen
Leobener Str., NW2, 28359 Bremen, Germany

Organic modification of semiconductors or functionalization is a fast growing field due to the need to create devices, exploiting the properties of organic and inorganic materials, capable of molecular recognition and chemical or biological sensing.
Different methods in wet or dry environment have been developed some of them photo assisted.
Silicon substrates have been widely used for these studies [1] and only recently Diamond substrates have been considered.[2]
In this talk I will present electron induced functionalization method of Diamond substrates which consists in depositing few layers of organic compounds on non-reactive hydrogenated surface and irradiating this film with low energy electrons.
Results on hydrogenated diamond/CH3CN system will shown.
 

References
[1] S. F. Bent, Surf. Sci. 500, 879 (2002). Organic functionalization of group IV semiconductor surfaces: principles, examples, applications, and prospects.
[2] A. Härtl et al., Nature 3, 736, octobre 2004. Protein-modified nanocrystalline diamond thin films for biosensor applications